Swansea climate guide

Get the latest coronavirus (COVID-19) updates for the UK with current travel advice, statistics and online resources.

Temperature in Swansea (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
7°C maximum daytime temperature in January in Swansea7
7°C maximum daytime temperature in February in Swansea7
9°C maximum daytime temperature in March in Swansea9
12°C maximum daytime temperature in April in Swansea12
15°C maximum daytime temperature in May in Swansea15
18°C maximum daytime temperature in June in Swansea18
20°C maximum daytime temperature in July in Swansea20
20°C maximum daytime temperature in August in Swansea20
17°C maximum daytime temperature in September in Swansea17
14°C maximum daytime temperature in October in Swansea14
11°C maximum daytime temperature in November in Swansea11
8°C maximum daytime temperature in December in Swansea8
Min temperature (night-time)
3°C minimum night-time temperature in January in Swansea3
3°C minimum night-time temperature in February in Swansea3
4°C minimum night-time temperature in March in Swansea4
5°C minimum night-time temperature in April in Swansea5
8°C minimum night-time temperature in May in Swansea8
11°C minimum night-time temperature in June in Swansea11
13°C minimum night-time temperature in July in Swansea13
13°C minimum night-time temperature in August in Swansea13
11°C minimum night-time temperature in September in Swansea11
9°C minimum night-time temperature in October in Swansea9
5°C minimum night-time temperature in November in Swansea5
4°C minimum night-time temperature in December in Swansea4
Sea temperature
8°C sea temperature in January in Swansea8
8°C sea temperature in February in Swansea8
8°C sea temperature in March in Swansea8
9°C sea temperature in April in Swansea9
11°C sea temperature in May in Swansea11
14°C sea temperature in June in Swansea14
16°C sea temperature in July in Swansea16
18°C sea temperature in August in Swansea18
17°C sea temperature in September in Swansea17
15°C sea temperature in October in Swansea15
12°C sea temperature in November in Swansea12
10°C sea temperature in December in Swansea10

Sunshine & Daylight in Swansea

  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 Swansea8
10 hours of daylight per day in February in Swansea10
12 hours of daylight per day in March in Swansea12
14 hours of daylight per day in April in Swansea14
16 hours of daylight per day in May in Swansea16
17 hours of daylight per day in June in Swansea17
16 hours of daylight per day in July in Swansea16
15 hours of daylight per day in August in Swansea15
13 hours of daylight per day in September in Swansea13
11 hours of daylight per day in October in Swansea11
9 hours of daylight per day in November in Swansea9
8 hours of daylight per day in December in Swansea8

Rainfall in Swansea

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
20 days with some rainfall in January in Swansea20
15 days with some rainfall in February in Swansea15
18 days with some rainfall in March in Swansea18
14 days with some rainfall in April in Swansea14
15 days with some rainfall in May in Swansea15
15 days with some rainfall in June in Swansea15
13 days with some rainfall in July in Swansea13
16 days with some rainfall in August in Swansea16
16 days with some rainfall in September in Swansea16
19 days with some rainfall in October in Swansea19
20 days with some rainfall in November in Swansea20
20 days with some rainfall in December in Swansea20
Average monthly rainfall (mm)
133 mm monthly rainfall in January in Swansea133
89 mm monthly rainfall in February in Swansea89
96 mm monthly rainfall in March in Swansea96
69 mm monthly rainfall in April in Swansea69
77 mm monthly rainfall in May in Swansea77
78 mm monthly rainfall in June in Swansea78
75 mm monthly rainfall in July in Swansea75
103 mm monthly rainfall in August in Swansea103
111 mm monthly rainfall in September in Swansea111
130 mm monthly rainfall in October in Swansea130
138 mm monthly rainfall in November in Swansea138
140 mm monthly rainfall in December in Swansea140

More climate for Swansea

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in Swansea1
UV (maximum) index 1 (Low) in February in Swansea1
UV (maximum) index 2 (Low) in March in Swansea2
UV (maximum) index 4 (Moderate) in April in Swansea4
UV (maximum) index 5 (Moderate) in May in Swansea5
UV (maximum) index 6 (High) in June in Swansea6
UV (maximum) index 6 (High) in July in Swansea6
UV (maximum) index 6 (High) in August in Swansea6
UV (maximum) index 4 (Moderate) in September in Swansea4
UV (maximum) index 2 (Low) in October in Swansea2
UV (maximum) index 1 (Low) in November in Swansea1
No UV (maximum) index in December in Swansea0
Heat & Humidity
No heat & humidity in January in Swansea0
No heat & humidity in February in Swansea0
No heat & humidity in March in Swansea0
No heat & humidity in April in Swansea0
No heat & humidity in May in Swansea0
No heat & humidity in June in Swansea0
No heat & humidity in July in Swansea0
No heat & humidity in August in Swansea0
No heat & humidity in September in Swansea0
No heat & humidity in October in Swansea0
No heat & humidity in November in Swansea0
No heat & humidity in December in Swansea0

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

  • Top deals & discounts
  • Swansea weather overview
  • More destinations
  • Best time to go to Swansea
  • Swansea 5-day weather forecast
  • Swansea weather today - current conditions (last 24-hours)

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

The climate guide for Swansea, Wales 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.

  • Save on holiday cottages in the UK & Ireland
  • Browse latest special offers on hand-picked cottages
  • Filter offers by facilities, activities & location

Swansea holiday rentals

Find holiday rentals in Swansea City, Wales including holiday homes, self-catering accommodation, B&Bs, shared space, home swaps and short-term lets.

  • Airbnb
  • HomeAway

Swansea camping & hostels

Looking for camping holidays in Swansea City, Wales? Browse hostels and campsites for camping, glamping, yurts, cabins, tree houses, youth hostels and caravan parks.

  • Campsited
  • Hostel World
  • YHA

Show all products

Back to search

UK & Ireland holidays

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

Back to top

Where's hot in Wales?

Below are average maximum temperatures at popular destinations in Wales for next month - June. Select a destination to see the climate guide for all months of the year.

More destinations & map >>

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.