San Juan weather by month

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

Temperature in San Juan (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
57°F maximum daytime temperature in January in San Juan57
59°F maximum daytime temperature in February in San Juan59
61°F maximum daytime temperature in March in San Juan61
64°F maximum daytime temperature in April in San Juan64
70°F maximum daytime temperature in May in San Juan70
77°F maximum daytime temperature in June in San Juan77
84°F maximum daytime temperature in July in San Juan84
84°F maximum daytime temperature in August in San Juan84
81°F maximum daytime temperature in September in San Juan81
73°F maximum daytime temperature in October in San Juan73
64°F maximum daytime temperature in November in San Juan64
61°F maximum daytime temperature in December in San Juan61
Min temperature (night-time)
45°F minimum night-time temperature in January in San Juan45
45°F minimum night-time temperature in February in San Juan45
46°F minimum night-time temperature in March in San Juan46
50°F minimum night-time temperature in April in San Juan50
55°F minimum night-time temperature in May in San Juan55
63°F minimum night-time temperature in June in San Juan63
68°F minimum night-time temperature in July in San Juan68
70°F minimum night-time temperature in August in San Juan70
66°F minimum night-time temperature in September in San Juan66
59°F minimum night-time temperature in October in San Juan59
52°F minimum night-time temperature in November in San Juan52
46°F minimum night-time temperature in December in San Juan46
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
Sea temperature
59°F sea temperature in January in San Juan59
57°F sea temperature in February in San Juan57
57°F sea temperature in March in San Juan57
61°F sea temperature in April in San Juan61
64°F sea temperature in May in San Juan64
72°F sea temperature in June in San Juan72
77°F sea temperature in July in San Juan77
79°F sea temperature in August in San Juan79
77°F sea temperature in September in San Juan77
72°F sea temperature in October in San Juan72
66°F sea temperature in November in San Juan66
61°F sea temperature in December in San Juan61

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

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
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

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 (inches)
1.5 inches monthly rainfall in January in San Juan1.5
1.3 inches monthly rainfall in February in San Juan1.3
1.6 inches monthly rainfall in March in San Juan1.6
1.6 inches monthly rainfall in April in San Juan1.6
1.1 inches monthly rainfall in May in San Juan1.1
0.7 inches monthly rainfall in June in San Juan0.7
0.3 inches monthly rainfall in July in San Juan0.3
1.1 inches monthly rainfall in August in San Juan1.1
1.9 inches monthly rainfall in September in San Juan1.9
2.9 inches monthly rainfall in October in San Juan2.9
2.1 inches monthly rainfall in November in San Juan2.1
2.2 inches monthly rainfall in December in San Juan2.2

More about San Juan

San Juan by month

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

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The climate guide for Ibiza (San Juan) 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 San Juan?

San Juan has a cool semi arid climate with hot summers.

Metric (°C)  |  Imperial (°F)

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Compare San Juan with the USA

Below the San Juan chart shows average maximum daytime temperature for San Juan, Ibiza, Balearic Islands, Spain and the USA (Washington).

Maximum daytime temperature (°F)

San Juan, Ibiza, Balearic Islands, Spain
USA (Washington)
57
41
59
45
61
55
64
66
70
75
77
84
84
88
84
86
81
79
73
68
64
57
61
46
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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