Río San Juan Weather in September
What's the weather like in Río San Juan (María Trinidad Sánchez) in September 2024?
The climate in Río San Juan during September can be summarized as hot, humid and wet.
September is in the fall / autumn in Río San Juan and is typically the warmest month of the year. Daytime maximum temperatures average around a steamy 32°C (89°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 31.8°C 89.2°F |
|---|---|
| Nightly temperature | 21.7°C 71°F |
| Average temperature | 26.7°C 80.1°F |
| Daily sunshine | 7.6 hrs |
| Avg rainfall | 131 mm 5.1 ins |
| Rainy days | 16 days |
| Sea temperature | 29°C 84.2°F |
| Humidity | 75% |
| Windspeed | 9.7kph 6 mph |
On average September is the 4th driest month of the year in Río San Juan with around 131mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.6 hours of sunshine per day.
September temperatures in Río San Juan
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 Río San Juan in September 2024.
Other monthly averages
Best places to visit in September
Río San Juan weather stats
| Hottest month: | June | 31.4°C 88.5°F |
|---|---|---|
| Driest month: | February | 103mm 4.1ins |
| Sunniest month: | August | 8.5hrs |
| Coldest month: | January | 27.7°C 81.9°F |
| Wettest month: | November | 268mm 10.6ins |
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