Pwllheli weather by month

Check out Pwllheli weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Pwllheli (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
7°C maximum daytime temperature in January in Pwllheli7
7°C maximum daytime temperature in February in Pwllheli7
9°C maximum daytime temperature in March in Pwllheli9
11°C maximum daytime temperature in April in Pwllheli11
14°C maximum daytime temperature in May in Pwllheli14
17°C maximum daytime temperature in June in Pwllheli17
18°C maximum daytime temperature in July in Pwllheli18
18°C maximum daytime temperature in August in Pwllheli18
16°C maximum daytime temperature in September in Pwllheli16
14°C maximum daytime temperature in October in Pwllheli14
10°C maximum daytime temperature in November in Pwllheli10
8°C maximum daytime temperature in December in Pwllheli8
Min temperature (night-time)
2°C minimum night-time temperature in January in Pwllheli2
2°C minimum night-time temperature in February in Pwllheli2
3°C minimum night-time temperature in March in Pwllheli3
4°C minimum night-time temperature in April in Pwllheli4
7°C minimum night-time temperature in May in Pwllheli7
10°C minimum night-time temperature in June in Pwllheli10
11°C minimum night-time temperature in July in Pwllheli11
11°C minimum night-time temperature in August in Pwllheli11
10°C minimum night-time temperature in September in Pwllheli10
8°C minimum night-time temperature in October in Pwllheli8
5°C minimum night-time temperature in November in Pwllheli5
3°C minimum night-time temperature in December in Pwllheli3
Heat & Humidity
No heat & humidity in January in Pwllheli0
No heat & humidity in February in Pwllheli0
No heat & humidity in March in Pwllheli0
No heat & humidity in April in Pwllheli0
No heat & humidity in May in Pwllheli0
No heat & humidity in June in Pwllheli0
No heat & humidity in July in Pwllheli0
No heat & humidity in August in Pwllheli0
No heat & humidity in September in Pwllheli0
No heat & humidity in October in Pwllheli0
No heat & humidity in November in Pwllheli0
No heat & humidity in December in Pwllheli0
Sea temperature
8°C sea temperature in January in Pwllheli8
7°C sea temperature in February in Pwllheli7
7°C sea temperature in March in Pwllheli7
9°C sea temperature in April in Pwllheli9
11°C sea temperature in May in Pwllheli11
14°C sea temperature in June in Pwllheli14
16°C sea temperature in July in Pwllheli16
17°C sea temperature in August in Pwllheli17
16°C sea temperature in September in Pwllheli16
14°C sea temperature in October in Pwllheli14
11°C sea temperature in November in Pwllheli11
9°C sea temperature in December in Pwllheli9

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & UV index in Pwllheli

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
8 hours of daylight per day in January in Pwllheli8
10 hours of daylight per day in February in Pwllheli10
12 hours of daylight per day in March in Pwllheli12
14 hours of daylight per day in April in Pwllheli14
16 hours of daylight per day in May in Pwllheli16
17 hours of daylight per day in June in Pwllheli17
16 hours of daylight per day in July in Pwllheli16
15 hours of daylight per day in August in Pwllheli15
13 hours of daylight per day in September in Pwllheli13
11 hours of daylight per day in October in Pwllheli11
9 hours of daylight per day in November in Pwllheli9
8 hours of daylight per day in December in Pwllheli8
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Pwllheli1
UV (maximum) index 1 (Low) in February in Pwllheli1
UV (maximum) index 2 (Low) in March in Pwllheli2
UV (maximum) index 4 (Moderate) in April in Pwllheli4
UV (maximum) index 5 (Moderate) in May in Pwllheli5
UV (maximum) index 6 (High) in June in Pwllheli6
UV (maximum) index 6 (High) in July in Pwllheli6
UV (maximum) index 5 (Moderate) in August in Pwllheli5
UV (maximum) index 4 (Moderate) in September in Pwllheli4
UV (maximum) index 2 (Low) in October in Pwllheli2
UV (maximum) index 1 (Low) in November in Pwllheli1
No UV (maximum) index in December in Pwllheli0

Rainfall in Pwllheli

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
21 days with some rainfall in January in Pwllheli21
16 days with some rainfall in February in Pwllheli16
18 days with some rainfall in March in Pwllheli18
15 days with some rainfall in April in Pwllheli15
16 days with some rainfall in May in Pwllheli16
14 days with some rainfall in June in Pwllheli14
13 days with some rainfall in July in Pwllheli13
16 days with some rainfall in August in Pwllheli16
16 days with some rainfall in September in Pwllheli16
18 days with some rainfall in October in Pwllheli18
20 days with some rainfall in November in Pwllheli20
20 days with some rainfall in December in Pwllheli20
Average monthly rainfall (mm)
144 mm monthly rainfall in January in Pwllheli144
98 mm monthly rainfall in February in Pwllheli98
112 mm monthly rainfall in March in Pwllheli112
82 mm monthly rainfall in April in Pwllheli82
81 mm monthly rainfall in May in Pwllheli81
84 mm monthly rainfall in June in Pwllheli84
89 mm monthly rainfall in July in Pwllheli89
119 mm monthly rainfall in August in Pwllheli119
126 mm monthly rainfall in September in Pwllheli126
156 mm monthly rainfall in October in Pwllheli156
161 mm monthly rainfall in November in Pwllheli161
162 mm monthly rainfall in December in Pwllheli162

More about Pwllheli

Pwllheli by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

  • Save up to 25% on last minute holiday bookings
  • Book breaks to Norfolk, Cornwall, Wales & beyond
  • Travel before 31st March 2026 (inclusive)

The climate guide for Wales (Pwllheli) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Pwllheli?

Pwllheli has a temperate climate with warm summers and some rainfall in all months.

Pwllheli weather in January

Expect daytime maximum temperatures of 7°C in Pwllheli, Wales in January based on long-term weather averages. There are 2 hours of sunshine per day on average with 21 days with some rainfall and typically 144 mm of rainfall in the month.

  • 7°C maximum daytime temperature in January in Pwllheli7
    7°C max day temperature
  • 2 hours of sunshine per day
  • 21 days with some rainfall in January in Pwllheli21
    21 days with some rainfall
  • 2°C minimum night-time temperature in January in Pwllheli2
    2°C min night temperature
  • 8 hours of daylight per day in January in Pwllheli8
    8 hours of daylight per day
  • No heat & humidity in January in Pwllheli0
    No heat & humidity
  • 144 mm monthly rainfall in January in Pwllheli144
    144 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in January in Pwllheli1
    1 (Low) UV index
  • 8°C sea temperature in January in Pwllheli8
    8°C sea temperature

Back to months

Pwllheli weather in February

Expect daytime maximum temperatures of 7°C in Pwllheli, Wales in February based on long-term weather averages. There are 3 hours of sunshine per day on average with 16 days with some rainfall and typically 98 mm of rainfall in the month.

  • 7°C maximum daytime temperature in February in Pwllheli7
    7°C max day temperature
  • 3 hours of sunshine per day
  • 16 days with some rainfall in February in Pwllheli16
    16 days with some rainfall
  • 2°C minimum night-time temperature in February in Pwllheli2
    2°C min night temperature
  • 10 hours of daylight per day in February in Pwllheli10
    10 hours of daylight per day
  • No heat & humidity in February in Pwllheli0
    No heat & humidity
  • 98 mm monthly rainfall in February in Pwllheli98
    98 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in February in Pwllheli1
    1 (Low) UV index
  • 7°C sea temperature in February in Pwllheli7
    7°C sea temperature

Back to months

Pwllheli weather in March

Expect daytime maximum temperatures of 9°C in Pwllheli, Wales in March based on long-term weather averages. There are 4 hours of sunshine per day on average with 18 days with some rainfall and typically 112 mm of rainfall in the month.

  • 9°C maximum daytime temperature in March in Pwllheli9
    9°C max day temperature
  • 4 hours of sunshine per day
  • 18 days with some rainfall in March in Pwllheli18
    18 days with some rainfall
  • 3°C minimum night-time temperature in March in Pwllheli3
    3°C min night temperature
  • 12 hours of daylight per day in March in Pwllheli12
    12 hours of daylight per day
  • No heat & humidity in March in Pwllheli0
    No heat & humidity
  • 112 mm monthly rainfall in March in Pwllheli112
    112 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in March in Pwllheli2
    2 (Low) UV index
  • 7°C sea temperature in March in Pwllheli7
    7°C sea temperature

Back to months

Pwllheli weather in April

Expect daytime maximum temperatures of 11°C in Pwllheli, Wales in April based on long-term weather averages. There are 5 hours of sunshine per day on average with 15 days with some rainfall and typically 82 mm of rainfall in the month.

  • 11°C maximum daytime temperature in April in Pwllheli11
    11°C max day temperature
  • 5 hours of sunshine per day
  • 15 days with some rainfall in April in Pwllheli15
    15 days with some rainfall
  • 4°C minimum night-time temperature in April in Pwllheli4
    4°C min night temperature
  • 14 hours of daylight per day in April in Pwllheli14
    14 hours of daylight per day
  • No heat & humidity in April in Pwllheli0
    No heat & humidity
  • 82 mm monthly rainfall in April in Pwllheli82
    82 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Pwllheli4
    4 (Moderate) UV index
  • 9°C sea temperature in April in Pwllheli9
    9°C sea temperature

Back to months

Pwllheli weather in May

Expect daytime maximum temperatures of 14°C in Pwllheli, Wales in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 81 mm of rainfall in the month.

  • 14°C maximum daytime temperature in May in Pwllheli14
    14°C max day temperature
  • 7 hours of sunshine per day
  • 16 days with some rainfall in May in Pwllheli16
    16 days with some rainfall
  • 7°C minimum night-time temperature in May in Pwllheli7
    7°C min night temperature
  • 16 hours of daylight per day in May in Pwllheli16
    16 hours of daylight per day
  • No heat & humidity in May in Pwllheli0
    No heat & humidity
  • 81 mm monthly rainfall in May in Pwllheli81
    81 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Pwllheli5
    5 (Moderate) UV index
  • 11°C sea temperature in May in Pwllheli11
    11°C sea temperature

Back to months

Pwllheli weather in June

Expect daytime maximum temperatures of 17°C in Pwllheli, Wales in June based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 84 mm of rainfall in the month.

  • 17°C maximum daytime temperature in June in Pwllheli17
    17°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in June in Pwllheli14
    14 days with some rainfall
  • 10°C minimum night-time temperature in June in Pwllheli10
    10°C min night temperature
  • 17 hours of daylight per day in June in Pwllheli17
    17 hours of daylight per day
  • No heat & humidity in June in Pwllheli0
    No heat & humidity
  • 84 mm monthly rainfall in June in Pwllheli84
    84 mm of monthly rainfall
  • UV (maximum) index 6 (High) in June in Pwllheli6
    6 (High) UV index
  • 14°C sea temperature in June in Pwllheli14
    14°C sea temperature

Back to months

Pwllheli weather in July

Expect daytime maximum temperatures of 18°C in Pwllheli, Wales in July based on long-term weather averages. There are 6 hours of sunshine per day on average with 13 days with some rainfall and typically 89 mm of rainfall in the month.

  • 18°C maximum daytime temperature in July in Pwllheli18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 13 days with some rainfall in July in Pwllheli13
    13 days with some rainfall
  • 11°C minimum night-time temperature in July in Pwllheli11
    11°C min night temperature
  • 16 hours of daylight per day in July in Pwllheli16
    16 hours of daylight per day
  • No heat & humidity in July in Pwllheli0
    No heat & humidity
  • 89 mm monthly rainfall in July in Pwllheli89
    89 mm of monthly rainfall
  • UV (maximum) index 6 (High) in July in Pwllheli6
    6 (High) UV index
  • 16°C sea temperature in July in Pwllheli16
    16°C sea temperature

Back to months

Pwllheli weather in August

Expect daytime maximum temperatures of 18°C in Pwllheli, Wales in August based on long-term weather averages. There are 6 hours of sunshine per day on average with 16 days with some rainfall and typically 119 mm of rainfall in the month.

  • 18°C maximum daytime temperature in August in Pwllheli18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 16 days with some rainfall in August in Pwllheli16
    16 days with some rainfall
  • 11°C minimum night-time temperature in August in Pwllheli11
    11°C min night temperature
  • 15 hours of daylight per day in August in Pwllheli15
    15 hours of daylight per day
  • No heat & humidity in August in Pwllheli0
    No heat & humidity
  • 119 mm monthly rainfall in August in Pwllheli119
    119 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in August in Pwllheli5
    5 (Moderate) UV index
  • 17°C sea temperature in August in Pwllheli17
    17°C sea temperature

Back to months

Pwllheli weather in September

Expect daytime maximum temperatures of 16°C in Pwllheli, Wales in September based on long-term weather averages. There are 4 hours of sunshine per day on average with 16 days with some rainfall and typically 126 mm of rainfall in the month.

  • 16°C maximum daytime temperature in September in Pwllheli16
    16°C max day temperature
  • 4 hours of sunshine per day
  • 16 days with some rainfall in September in Pwllheli16
    16 days with some rainfall
  • 10°C minimum night-time temperature in September in Pwllheli10
    10°C min night temperature
  • 13 hours of daylight per day in September in Pwllheli13
    13 hours of daylight per day
  • No heat & humidity in September in Pwllheli0
    No heat & humidity
  • 126 mm monthly rainfall in September in Pwllheli126
    126 mm of monthly rainfall
  • UV (maximum) index 4 (Moderate) in September in Pwllheli4
    4 (Moderate) UV index
  • 16°C sea temperature in September in Pwllheli16
    16°C sea temperature

Back to months

Pwllheli weather in October

Expect daytime maximum temperatures of 14°C in Pwllheli, Wales in October based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 156 mm of rainfall in the month.

  • 14°C maximum daytime temperature in October in Pwllheli14
    14°C max day temperature
  • 3 hours of sunshine per day
  • 18 days with some rainfall in October in Pwllheli18
    18 days with some rainfall
  • 8°C minimum night-time temperature in October in Pwllheli8
    8°C min night temperature
  • 11 hours of daylight per day in October in Pwllheli11
    11 hours of daylight per day
  • No heat & humidity in October in Pwllheli0
    No heat & humidity
  • 156 mm monthly rainfall in October in Pwllheli156
    156 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in October in Pwllheli2
    2 (Low) UV index
  • 14°C sea temperature in October in Pwllheli14
    14°C sea temperature

Back to months

Pwllheli weather in November

Expect daytime maximum temperatures of 10°C in Pwllheli, Wales in November based on long-term weather averages. There are 2 hours of sunshine per day on average with 20 days with some rainfall and typically 161 mm of rainfall in the month.

  • 10°C maximum daytime temperature in November in Pwllheli10
    10°C max day temperature
  • 2 hours of sunshine per day
  • 20 days with some rainfall in November in Pwllheli20
    20 days with some rainfall
  • 5°C minimum night-time temperature in November in Pwllheli5
    5°C min night temperature
  • 9 hours of daylight per day in November in Pwllheli9
    9 hours of daylight per day
  • No heat & humidity in November in Pwllheli0
    No heat & humidity
  • 161 mm monthly rainfall in November in Pwllheli161
    161 mm of monthly rainfall
  • UV (maximum) index 1 (Low) in November in Pwllheli1
    1 (Low) UV index
  • 11°C sea temperature in November in Pwllheli11
    11°C sea temperature

Back to months

Pwllheli weather in December

Expect daytime maximum temperatures of 8°C in Pwllheli, Wales in December based on long-term weather averages. There is 1 hour of sunshine per day on average with 20 days with some rainfall and typically 162 mm of rainfall in the month.

  • 8°C maximum daytime temperature in December in Pwllheli8
    8°C max day temperature
  • 1 hour of sunshine per day
  • 20 days with some rainfall in December in Pwllheli20
    20 days with some rainfall
  • 3°C minimum night-time temperature in December in Pwllheli3
    3°C min night temperature
  • 8 hours of daylight per day in December in Pwllheli8
    8 hours of daylight per day
  • No heat & humidity in December in Pwllheli0
    No heat & humidity
  • 162 mm monthly rainfall in December in Pwllheli162
    162 mm of monthly rainfall
  • No UV (maximum) index in December in Pwllheli0
    No UV (Maximum) Index UV index
  • 9°C sea temperature in December in Pwllheli9
    9°C sea temperature

Back to months

More about Pwllheli

Pwllheli by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Wales

  • Save 10% on UK holiday homes & apartments
  • Explore rental properties across England, Scotland & Wales
  • Book online with Host and Stay discount code
Show discount codeShow discount code ******Y10

Expires at 23:59 on Thursday 31st Dec 2026 · View all Host and Stay offers

The climate guide for Wales (Pwllheli) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Compare Pwllheli weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Pwllheli, Gwynedd, Wales and the UK (London).

Maximum daytime temperature (°C)

Pwllheli, Gwynedd, Wales
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more weather >>

Back to top

More about Wales

Related posts

Popular travel offers

Explore holiday destinations

More holidays

Save with latest deals & discounts

More deals

Airport parking

More parking

Airport lounges

More lounges

Top ^