Castanhal Weather in March
What's the weather like in Castanhal (Pará) in March 2025?
The climate in Castanhal during March can be summarized as hot, humid and very wet.
March is in the fall / autumn in Castanhal and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (85°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 29.2°C 84.6°F |
|---|---|
| Nightly temperature | 22.4°C 72.3°F |
| Average temperature | 25.8°C 78.4°F |
| Daily sunshine | 3.5 hrs |
| Avg rainfall | 489 mm 19.3 ins |
| Rainy days | 31 days |
| Sea temperature | 28.1°C 82.6°F |
| Humidity | 90% |
| Windspeed | 4.7kph 3 mph |
On average March is the wettest month of the year in Castanhal with around 489mm 19.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 31 days, although this may vary considerably.
On the flip side this corresponds to an average of 3.5 hours of sunshine per day.
March temperatures in Castanhal
March rainfall
March 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 Castanhal in March 2025.
Other monthly averages
Castanhal weather stats
| Hottest month: | November | 32.2°C 90°F |
|---|---|---|
| Driest month: | October | 55mm 2.2ins |
| Sunniest month: | August | 8.6hrs |
| Coldest month: | March | 29°C 84.2°F |
| Wettest month: | March | 489mm 19.3ins |
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