San Juan Weather Year-Round — Best Time to Visit
San Juan, Puerto Rico has hot weather year-round. The best time to visit is March (score: 82/100). Annual average high: 29.9°C, total rainfall: 913mm.
When is the best time to visit San Juan?
82
March is the best month to visit San Juan with a travel score of 82/100 (Excellent).
Expect highs of 29.2°C, 9 rain days, and 11.2 hours of daily sunshine.
View March weather details →Travel Score by Month
79
Jan
82
Feb
82
Mar
79
Apr
74
May
76
Jun
72
Jul
70
Aug
68
Sep
67
Oct
70
Nov
76
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in San Juan each month?
29.9°C
Avg High
23.2°C
Avg Low
913mm
Annual Rain
How much rain does San Juan get?
San Juan receives 913mm of rain annually. The wettest month is typically September with 127mm, while February is the driest.
What is the weather like each month in San Juan?
January
79
28°C
Low: 22°C
10 rain days
Good
February
82
28°C
Low: 21°C
9 rain days
Excellent
March
Best time to visit82
29°C
Low: 22°C
9 rain days
Excellent
April
79
30°C
Low: 22°C
12 rain days
Good
May
74
31°C
Low: 24°C
15 rain days
Good
June
76
31°C
Low: 24°C
14 rain days
Good
July
72
31°C
Low: 25°C
16 rain days
Good
August
70
31°C
Low: 25°C
18 rain days
Good
September
68
31°C
Low: 25°C
20 rain days
Good
October
67
30°C
Low: 24°C
20 rain days
Good
November
70
29°C
Low: 23°C
17 rain days
Good
December
76
28°C
Low: 22°C
13 rain days
Good
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Data based on 1994–2024 averages · Last updated: 2024-12-31