The climate in Vandalia during July can be summarized as hot and a little damp.
July is in the summer in Vandalia and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 31°C (88°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 31.2°C 88.1°F |
|---|---|
| Nightly temperature | 18.9°C 65.9°F |
| Average temperature | 25°C 77°F |
| Daily sunshine | 11 hrs |
| Avg rainfall | 97 mm 3.8 ins |
| Rainy days | 9 days |
| Sea temperature | 19.9°C 67.9°F |
| Humidity | 70% |
| Windspeed | 13kph 8 mph |
On average July is the 3rd wettest month of the year in Vandalia with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 11 hours of sunshine per day.
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 Vandalia in July 2025.
| Hottest month: | July | 30.9°C 87.6°F |
|---|---|---|
| Driest month: | January | 48mm 1.9ins |
| Sunniest month: | July | 11hrs |
| Coldest month: | January | 2.2°C 36°F |
| Wettest month: | April | 102mm 4ins |