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 (°F)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Max temperature (daytime)	84	86	86	88	88	88	90	90	90	88	84	84
Min temperature (night-time)	57	59	61	64	66	66	64	66	66	64	63	59
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 (inches)	0.8	0.9	1.4	4.2	7.4	4.3	4.4	5.3	6.1	6.2	2.8	1.7

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 84°F 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.

84
84°F max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
57
57°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
0.8
0.8 inches of monthly rainfall
8
8 (Very High) UV index

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San Juan weather in February

Expect daytime maximum temperatures of 86°F 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.

86
86°F max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
59
59°F min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
0.9
0.9 inches of monthly rainfall
10
10 (Very High) UV index

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San Juan weather in March

Expect daytime maximum temperatures of 86°F 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.

86
86°F max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
61
61°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
1.4
1.4 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in April

Expect daytime maximum temperatures of 88°F 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 4.2 inches of rainfall in the month.

88
88°F max day temperature
8
8 hours of sunshine per day
10
10 days with some rainfall
64
64°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
4.2
4.2 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in May

Expect daytime maximum temperatures of 88°F 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 7.4 inches of rainfall in the month.

88
88°F max day temperature
7
7 hours of sunshine per day
12
12 days with some rainfall
66
66°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
7.4
7.4 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in June

Expect daytime maximum temperatures of 88°F 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 4.3 inches of rainfall in the month.

88
88°F max day temperature
8
8 hours of sunshine per day
12
12 days with some rainfall
66
66°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
4.3
4.3 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in July

Expect daytime maximum temperatures of 90°F 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 4.4 inches of rainfall in the month.

90
90°F max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
64
64°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
4.4
4.4 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in August

Expect daytime maximum temperatures of 90°F 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 5.3 inches of rainfall in the month.

90
90°F max day temperature
8
8 hours of sunshine per day
15
15 days with some rainfall
66
66°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
5.3
5.3 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in September

Expect daytime maximum temperatures of 90°F 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 6.1 inches of rainfall in the month.

90
90°F max day temperature
7
7 hours of sunshine per day
15
15 days with some rainfall
66
66°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
6.1
6.1 inches of monthly rainfall
11
11+ (Extreme) UV index

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San Juan weather in October

Expect daytime maximum temperatures of 88°F 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 6.2 inches of rainfall in the month.

88
88°F max day temperature
7
7 hours of sunshine per day
16
16 days with some rainfall
64
64°F min night temperature
12
12 hours of daylight per day
H
High heat & humidity
6.2
6.2 inches of monthly rainfall
10
10 (Very High) UV index

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San Juan weather in November

Expect daytime maximum temperatures of 84°F 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 2.8 inches of rainfall in the month.

84
84°F max day temperature
7
7 hours of sunshine per day
14
14 days with some rainfall
63
63°F min night temperature
11
11 hours of daylight per day
M
Moderate heat & humidity
2.8
2.8 inches of monthly rainfall
9
9 (Very High) UV index

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San Juan weather in December

Expect daytime maximum temperatures of 84°F 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 1.7 inches of rainfall in the month.