Roseau Weather in July
What's the weather like in Roseau (Saint George) in July 2025?
The climate in Roseau during July can be summarized as hot, humid and damp.
July is in the summer in Roseau and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 24°C (74°F) is normal.
| Daytime temperature | 31°C 87.7°F |
|---|---|
| Nightly temperature | 23.5°C 74.3°F |
| Average temperature | 27.2°C 81°F |
| Daily sunshine | 8 hrs |
| Avg rainfall | 106 mm 4.2 ins |
| Rainy days | 20 days |
| Sea temperature | 28.2°C 82.8°F |
| Humidity | 81% |
| Windspeed | 20kph 13 mph |
On average July is the 4th driest month of the year in Roseau with around 106mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
July temperatures in Roseau
July rainfall
July 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 Roseau in July 2025.
Other monthly averages
Roseau weather stats
| Hottest month: | August | 31°C 87.8°F |
|---|---|---|
| Driest month: | February | 87mm 3.4ins |
| Sunniest month: | April | 8.7hrs |
| Coldest month: | February | 28.6°C 83.5°F |
| Wettest month: | November | 265mm 10.4ins |
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