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
Rainfall
Sunshine & UV index

Temperature in San Juan (°C)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	29	30	30	31	31	31	32	32	32	31	29	29
Min temperature (night-time)	14	15	16	18	19	19	18	19	19	18	17	15
Heat & Humidity	M	M	H	H	H	H	H	H	H	H	M	M

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

Sunshine & UV index in San Juan

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daily hours of sunshine	7	8	8	8	7	8	8	8	7	7	7	7
Daily hours of daylight	11	12	12	13	13	13	13	13	12	12	11	11
UV Index (Maximum)	8	10	11	11	11	11	11	11	11	10	9	8

Rainfall in San Juan

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Number of days with some rain	12	10	10	10	12	12	15	15	15	16	14	13
Average monthly rainfall (mm)	20	24	36	107	189	109	111	135	155	158	72	44

More about the 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 Dominican Republic (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 hot tropical climate with a winter dry season.

San Juan weather in January

Expect daytime maximum temperatures of 29°C in San Juan, Dominican Republic in January based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall.

29
29°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
14
14°C min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
20
20 mm of monthly rainfall
8
8 (Very High) UV index

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San Juan weather in February

Expect daytime maximum temperatures of 30°C in San Juan, Dominican Republic in February based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall.

30
30°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
15
15°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
24
24 mm of monthly rainfall
10
10 (Very High) UV index

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San Juan weather in March

Expect daytime maximum temperatures of 30°C in San Juan, Dominican Republic in March and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall.

30
30°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
16
16°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
36
36 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in April

Expect daytime maximum temperatures of 31°C in San Juan, Dominican Republic in April and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 10 days with some rainfall and typically 107 mm of rainfall in the month.

31
31°C max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
18
18°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
107
107 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in May

Expect daytime maximum temperatures of 31°C in San Juan, Dominican Republic in May and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 189 mm of rainfall in the month.

31
31°C max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
19
19°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
189
189 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in June

Expect daytime maximum temperatures of 31°C in San Juan, Dominican Republic in June and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 12 days with some rainfall and typically 109 mm of rainfall in the month.

31
31°C max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
19
19°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
109
109 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in July

Expect daytime maximum temperatures of 32°C in San Juan, Dominican Republic in July and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 15 days with some rainfall and typically 111 mm of rainfall in the month.

32
32°C max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
18
18°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
111
111 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in August

Expect daytime maximum temperatures of 32°C in San Juan, Dominican Republic in August and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 15 days with some rainfall and typically 135 mm of rainfall in the month.

32
32°C max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
19
19°C min night temperature
13
13 hours of daylight per day
H
High heat & humidity
135
135 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in September

Expect daytime maximum temperatures of 32°C in San Juan, Dominican Republic in September and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 155 mm of rainfall in the month.

32
32°C max day temperature
7
7 hours of sunshine per day
15
15 days with some rainfall
19
19°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
155
155 mm of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in October

Expect daytime maximum temperatures of 31°C in San Juan, Dominican Republic in October and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 16 days with some rainfall and typically 158 mm of rainfall in the month.

31
31°C max day temperature
7
7 hours of sunshine per day
16
16 days with some rainfall
18
18°C min night temperature
12
12 hours of daylight per day
H
High heat & humidity
158
158 mm of monthly rainfall
10
10 (Very High) UV index

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San Juan weather in November

Expect daytime maximum temperatures of 29°C in San Juan, Dominican Republic in November based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 72 mm of rainfall in the month.

29
29°C max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
17
17°C min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
72
72 mm of monthly rainfall
9
9 (Very High) UV index

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San Juan weather in December

Expect daytime maximum temperatures of 29°C in San Juan, Dominican Republic in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 44 mm of rainfall in the month.