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Home > World Climate Guides > Caribbean > Dominican Republic > San Juan
San Juan Climate Guide
Dominican Republic
Metric | Imperial    Bars | Symbols
Maximum Daytime Temperature (°C)
Minimum Night-time Temperature (°C)
29
29 °C (84°F) Maximum Daytime Temperature in January
30
30 °C (86°F) Maximum Daytime Temperature in February
30
30 °C (86°F) Maximum Daytime Temperature in March
31
31 °C (88°F) Maximum Daytime Temperature in April
31
31 °C (88°F) Maximum Daytime Temperature in May
31
31 °C (88°F) Maximum Daytime Temperature in June
32
32 °C (90°F) Maximum Daytime Temperature in July
32
32 °C (90°F) Maximum Daytime Temperature in August
32
32 °C (90°F) Maximum Daytime Temperature in September
31
31 °C (88°F) Maximum Daytime Temperature in October
30
30 °C (86°F) Maximum Daytime Temperature in November
29
29 °C (84°F) Maximum Daytime Temperature in December
J F M A M J J A S O N D
14
14 °C (57°F) Minimum Night-time Temperature in January
15
15 °C (59°F) Minimum Night-time Temperature in February
16
16 °C (61°F) Minimum Night-time Temperature in March
18
18 °C (64°F) Minimum Night-time Temperature in April
19
19 °C (66°F) Minimum Night-time Temperature in May
19
19 °C (66°F) Minimum Night-time Temperature in June
19
19 °C (66°F) Minimum Night-time Temperature in July
19
19 °C (66°F) Minimum Night-time Temperature in August
19
19 °C (66°F) Minimum Night-time Temperature in September
18
18 °C (64°F) Minimum Night-time Temperature in October
17
17 °C (63°F) Minimum Night-time Temperature in November
15
15 °C (59°F) Minimum Night-time Temperature in December
J F M A M J J A S O N D
Hours of Sunshine
Hours of Daylight
7
7 Hours of Sunshine (65% of Daylight Hours) in January
8
8 Hours of Sunshine (66% of Daylight Hours) in February
8
8 Hours of Sunshine (67% of Daylight Hours) in March
8
8 Hours of Sunshine (62% of Daylight Hours) in April
7
7 Hours of Sunshine (56% of Daylight Hours) in May
8
8 Hours of Sunshine (59% of Daylight Hours) in June
8
8 Hours of Sunshine (63% of Daylight Hours) in July
8
8 Hours of Sunshine (65% of Daylight Hours) in August
7
7 Hours of Sunshine (59% of Daylight Hours) in September
7
7 Hours of Sunshine (62% of Daylight Hours) in October
7
7 Hours of Sunshine (64% of Daylight Hours) in November
7
7 Hours of Sunshine (62% of Daylight Hours) in December
J F M A M J J A S O N D
11
11 Hours of Daylight in January
12
12 Hours of Daylight in February
12
12 Hours of Daylight in March
13
13 Hours of Daylight in April
13
13 Hours of Daylight in May
13
13 Hours of Daylight in June
13
13 Hours of Daylight in July
13
13 Hours of Daylight in August
12
12 Hours of Daylight in September
12
12 Hours of Daylight in October
11
11 Hours of Daylight in November
11
11 Hours of Daylight in December
J F M A M J J A S O N D
Days with some Rain
Monthly Rainfall (mm)
12
12 Days with some Rain in January
9
9 Days with some Rain in February
10
10 Days with some Rain in March
10
10 Days with some Rain in April
13
13 Days with some Rain in May
13
13 Days with some Rain in June
14
14 Days with some Rain in July
14
14 Days with some Rain in August
15
15 Days with some Rain in September
17
17 Days with some Rain in October
13
13 Days with some Rain in November
12
12 Days with some Rain in December
J F M A M J J A S O N D
20
20 mm (0.8 inches) Monthly Rainfall in January
24
24 mm (0.9 inches) Monthly Rainfall in February
36
36 mm (1.4 inches) Monthly Rainfall in March
107
107 mm (4.2 inches) Monthly Rainfall in April
189
189 mm (7.4 inches) Monthly Rainfall in May
109
109 mm (4.3 inches) Monthly Rainfall in June
111
111 mm (4.4 inches) Monthly Rainfall in July
135
135 mm (5.3 inches) Monthly Rainfall in August
155
155 mm (6.1 inches) Monthly Rainfall in September
158
158 mm (6.2 inches) Monthly Rainfall in October
72
72 mm (2.8 inches) Monthly Rainfall in November
44
44 mm (1.7 inches) Monthly Rainfall in December
J F M A M J J A S O N D
Heat & Humidity / Chance of Frost
UV Index (Maximum)
M
Moderate Heat & Humidity in January
M
Moderate Heat & Humidity in February
H
High Heat & Humidity in March
H
High Heat & Humidity in April
H
High Heat & Humidity in May
H
High Heat & Humidity in June
H
High Heat & Humidity in July
H
High Heat & Humidity in August
H
High Heat & Humidity in September
H
High Heat & Humidity in October
M
Moderate Heat & Humidity in November
M
Moderate Heat & Humidity in December
J F M A M J J A S O N D
8
UV 8 (Very High) in January
10
UV 10 (Very High) in February
11
UV 11+ (Extreme) in March
11
UV 11+ (Extreme) in April
11
UV 11+ (Extreme) in May
11
UV 11+ (Extreme) in June
11
UV 11+ (Extreme) in July
11
UV 11+ (Extreme) in August
11
UV 11+ (Extreme) in September
10
UV 10 (Very High) in October
9
UV 9 (Very High) in November
8
UV 8 (Very High) in December
J F M A M J J A S O N D
Sea Temperature (°C)
San Juan Climate Guide (Historical Weather Averages), Dominican Republic
Elev: 400 m   Long: 071°13'W   Lat: 18°48'N
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