Castelli Weather in May
What's the weather like in Castelli (Chaco) in May 2026?
The climate in Castelli during May can be summarized as warm and reasonably dry.
May is in the fall / autumn in Castelli and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 25°C (77°F), whilst at night 13°C (56°F) is normal.
| Daytime temperature | 24.9°C 76.7°F |
|---|---|
| Nightly temperature | 13.4°C 56°F |
| Average temperature | 19.1°C 66.4°F |
| Daily sunshine | 6.3 hrs |
| Avg rainfall | 47 mm 1.9 ins |
| Rainy days | 7 days |
| Sea temperature | 19.9°C 67.8°F |
| Humidity | 78% |
| Windspeed | 8.3kph 5 mph |
On average May is the 5th driest month of the year in Castelli with around 47mm 1.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.3 hours of sunshine per day.
May temperatures in Castelli
May rainfall
May 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 Castelli in May 2025.
Other monthly averages
Castelli weather stats
| Hottest month: | January | 33.8°C 92.8°F |
|---|---|---|
| Driest month: | August | 18mm 0.7ins |
| Sunniest month: | January | 9.5hrs |
| Coldest month: | June | 21.6°C 70.9°F |
| Wettest month: | March | 146mm 5.7ins |
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