The weather in New Haven in July is hot. The average temperatures are between 20°C and 28°C.
You can expect rain for roughly half of the month of July in New Haven. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in New Haven in July 2025.
If you’re planning to visit New Haven in the near future, we highly recommend that you review the 14 day weather forecast for New Haven before you arrive.
Temperatures
28° / 20°
Rainy Days
8
Snowy Days
0
Dry Days
23
Rainfall
179
mm
Sun Hours
10.8
Hrs
