San José Weather in September
What's the weather like in San José (San José) in September 2024?
The climate in San José during September can be summarized as warm, humid and very wet.
September is in the fall / autumn in San José and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 24°C (76°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 24.3°C 75.7°F |
|---|---|
| Nightly temperature | 17.1°C 62.8°F |
| Average temperature | 20.7°C 69.3°F |
| Daily sunshine | 6.4 hrs |
| Avg rainfall | 372 mm 14.6 ins |
| Rainy days | 24 days |
| Sea temperature | 28.6°C 83.5°F |
| Humidity | 84% |
| Windspeed | 10.4kph 7 mph |
On average September is the wettest month of the year in San José with around 372mm 14.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
September temperatures in San José
September rainfall
September 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 José in September 2024.
Other monthly averages
Best places to visit in September
San José weather stats
| Hottest month: | May | 25°C 77°F |
|---|---|---|
| Driest month: | January | 7mm 0.3ins |
| Sunniest month: | March | 7.6hrs |
| Coldest month: | January | 22.9°C 73.2°F |
| Wettest month: | September | 372mm 14.6ins |
© Google