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San Juan climate guide
Temperature in San Juan (°C)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max temperature (daytime) |  27 |
27 |
 28 |
29 |
29 |
 30 |
30 |
30 |
30 |
30 |
29 |
28 |
| Min temperature (night-time) |  20 |
20 |
21 |
21 |
 22 |
23 |
23 |
 24 |
23 |
23 |
22 |
21 |
| Sea temperature |  26 |
26 |
26 |
26 |
27 |
 28 |
28 |
28 |
29 |
29 |
28 |
27 |
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 |  11 |
 12 |
12 |
 13 |
13 |
13 |
13 |
13 |
12 |
12 |
11 |
11 |
Rainfall in San Juan
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of days with some rain |  20 |
 15 |
15 |
14 |
 16 |
17 |
19 |
20 |
18 |
18 |
19 |
21 |
| Average monthly rainfall (mm) |  116 |
 82 |
 79 |
 121 |
 182 |
 151 |
 180 |
195 |
188 |
171 |
178 |
151 |
More climate for San Juan
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV Index (Maximum) |  8 |
10 |
 11 |
11 |
11 |
11 |
11 |
11 |
11 |
10 |
9 |
8 |
| Heat & Humidity |  M |
M |
M |
 H |
H |
H |
H |
H |
H |
H |
H |
M |
Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme
What's the climate like in San Juan?
San Juan has a hot tropical climate with no dry season.
Recommended for Puerto Rico
The climate guide for Puerto Rico (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.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C / mm) | Imperial (°F / inches)
More about Puerto Rico
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