San Juan Weather in January
What's the weather like in San Juan (San Juan) in January 2024?
The climate in San Juan during January can be summarized as hot and dry.
January is in the summer in San Juan and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 34°C (93°F), whilst at night 18°C (65°F) is normal.
| Daytime temperature | 33.7°C 92.7°F |
|---|---|
| Nightly temperature | 18.3°C 64.9°F |
| Average temperature | 26°C 78.8°F |
| Daily sunshine | 11.2 hrs |
| Avg rainfall | 19 mm 0.8 ins |
| Rainy days | 5 days |
| Sea temperature | 19°C 66.3°F |
| Humidity | 48% |
| Windspeed | 9kph 6 mph |
On average January is the wettest month of the year in San Juan with around 19mm 0.8 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 11.2 hours of sunshine per day.
January temperatures in San Juan
January rainfall
January hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Juan in January 2024.
Other monthly averages
Best places to visit in January
San Juan weather stats
| Hottest month: | January | 33.3°C 91.9°F |
|---|---|---|
| Driest month: | May | 2mm 0.1ins |
| Sunniest month: | November | 11.4hrs |
| Coldest month: | July | 15.3°C 59.5°F |
| Wettest month: | January | 19mm 0.7ins |
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