San Juan climate guide

Temperature in San Juan (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
14°C maximum daytime temperature in January in San Juan14
15°C maximum daytime temperature in February in San Juan15
16°C maximum daytime temperature in March in San Juan16
18°C maximum daytime temperature in April in San Juan18
21°C maximum daytime temperature in May in San Juan21
25°C maximum daytime temperature in June in San Juan25
29°C maximum daytime temperature in July in San Juan29
29°C maximum daytime temperature in August in San Juan29
27°C maximum daytime temperature in September in San Juan27
23°C maximum daytime temperature in October in San Juan23
18°C maximum daytime temperature in November in San Juan18
16°C maximum daytime temperature in December in San Juan16
Min temperature (night-time)
7°C minimum night-time temperature in January in San Juan7
7°C minimum night-time temperature in February in San Juan7
8°C minimum night-time temperature in March in San Juan8
10°C minimum night-time temperature in April in San Juan10
13°C minimum night-time temperature in May in San Juan13
17°C minimum night-time temperature in June in San Juan17
20°C minimum night-time temperature in July in San Juan20
21°C minimum night-time temperature in August in San Juan21
19°C minimum night-time temperature in September in San Juan19
15°C minimum night-time temperature in October in San Juan15
11°C minimum night-time temperature in November in San Juan11
8°C minimum night-time temperature in December in San Juan8
Sea temperature
15°C sea temperature in January in San Juan15
14°C sea temperature in February in San Juan14
14°C sea temperature in March in San Juan14
16°C sea temperature in April in San Juan16
18°C sea temperature in May in San Juan18
22°C sea temperature in June in San Juan22
25°C sea temperature in July in San Juan25
26°C sea temperature in August in San Juan26
25°C sea temperature in September in San Juan25
22°C sea temperature in October in San Juan22
19°C sea temperature in November in San Juan19
16°C sea temperature in December in San Juan16

Sunshine & Daylight in San Juan

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in San Juan10
11 hours of daylight per day in February in San Juan11
12 hours of daylight per day in March in San Juan12
13 hours of daylight per day in April in San Juan13
14 hours of daylight per day in May in San Juan14
15 hours of daylight per day in June in San Juan15
15 hours of daylight per day in July in San Juan15
14 hours of daylight per day in August in San Juan14
12 hours of daylight per day in September in San Juan12
11 hours of daylight per day in October in San Juan11
10 hours of daylight per day in November in San Juan10
9 hours of daylight per day in December in San Juan9

Rainfall in San Juan

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
14 days with some rainfall in January in San Juan14
12 days with some rainfall in February in San Juan12
12 days with some rainfall in March in San Juan12
10 days with some rainfall in April in San Juan10
8 days with some rainfall in May in San Juan8
6 days with some rainfall in June in San Juan6
3 days with some rainfall in July in San Juan3
5 days with some rainfall in August in San Juan5
7 days with some rainfall in September in San Juan7
11 days with some rainfall in October in San Juan11
11 days with some rainfall in November in San Juan11
13 days with some rainfall in December in San Juan13
Average monthly rainfall (mm)
39 mm monthly rainfall in January in San Juan39
32 mm monthly rainfall in February in San Juan32
41 mm monthly rainfall in March in San Juan41
40 mm monthly rainfall in April in San Juan40
29 mm monthly rainfall in May in San Juan29
18 mm monthly rainfall in June in San Juan18
7 mm monthly rainfall in July in San Juan7
27 mm monthly rainfall in August in San Juan27
48 mm monthly rainfall in September in San Juan48
74 mm monthly rainfall in October in San Juan74
54 mm monthly rainfall in November in San Juan54
57 mm monthly rainfall in December in San Juan57

More climate for San Juan

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in San Juan2
UV (maximum) index 3 (Moderate) in February in San Juan3
UV (maximum) index 5 (Moderate) in March in San Juan5
UV (maximum) index 6 (High) in April in San Juan6
UV (maximum) index 8 (Very High) in May in San Juan8
UV (maximum) index 9 (Very High) in June in San Juan9
UV (maximum) index 9 (Very High) in July in San Juan9
UV (maximum) index 8 (Very High) in August in San Juan8
UV (maximum) index 6 (High) in September in San Juan6
UV (maximum) index 4 (Moderate) in October in San Juan4
UV (maximum) index 2 (Low) in November in San Juan2
UV (maximum) index 2 (Low) in December in San Juan2
Heat & Humidity
No heat & humidity in January in San Juan0
No heat & humidity in February in San Juan0
No heat & humidity in March in San Juan0
No heat & humidity in April in San Juan0
No heat & humidity in May in San Juan0
No heat & humidity in June in San Juan0
Moderate heat & humidity in July in San JuanM
Moderate heat & humidity in August in San JuanM
Low heat & humidity in September in San JuanL
No heat & humidity in October in San Juan0
No heat & humidity in November in San Juan0
No heat & humidity in December in San Juan0

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

Going to San Juan? Find the best month to visit San Juan based on the weather.

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San Juan

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More about San Juan

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The climate guide for San Juan, Ibiza 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)

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