Siuna Weather in August
What's the weather like in Siuna (Atlántico Norte) in August 2025?
The climate in Siuna during August can be summarized as hot, humid and very wet.
August is in the summer in Siuna and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 29.3°C 84.7°F |
|---|---|
| Nightly temperature | 21.3°C 70.3°F |
| Average temperature | 25.3°C 77.5°F |
| Daily sunshine | 6.3 hrs |
| Avg rainfall | 280 mm 11 ins |
| Rainy days | 22 days |
| Sea temperature | 28.7°C 83.7°F |
| Humidity | 84% |
| Windspeed | 15.8kph 10 mph |
On average August is the 4th wettest month of the year in Siuna with around 280mm 11 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
August temperatures in Siuna
August rainfall
August 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 Siuna in August 2025.
Other monthly averages
Best places to visit in August
Siuna weather stats
| Hottest month: | April | 31.5°C 88.7°F |
|---|---|---|
| Driest month: | March | 36mm 1.4ins |
| Sunniest month: | March | 8.2hrs |
| Coldest month: | December | 28°C 82.4°F |
| Wettest month: | June | 394mm 15.5ins |
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