Last updated: June 24, 2025
In July, the average temperature in New Haven, United States hovers around 24°C (75°F), making it a pleasant time to visit. Expect temperatures to range from a cool 12°C (53°F) to a warm 36°C (97°F). However, be prepared for some rain as 71 mm (2.8 in) of precipitation may fall over 10 days of the month. With an average humidity of 80%, the air will feel quite tropical, reminding you to stay hydrated and enjoy the vibrant surroundings!
In July in New Haven, the average temperature is 24°C (75°F). Maximums can reach 36°C (97°F), and minimums can be as low as 12°C (53°F). This makes New Haven an ideal destination for travelers looking to enjoy warm weather while still having the option for cooler excursions.
In New Haven in July, the precipitation amount is 71 mm (2.8 in) over a duration of 10 days.
In New Haven in July humidity is 80%. With an average temperature of 24°C (75°F), this humidity feels like a warm, sticky blanket enveloping you, making travel slightly uncomfortable as sweat clings to your skin and the air feels thick, urging you to seek shade and hydration frequently.
In New Haven in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in New Haven.
UV Risk Categories
Weather in New Haven varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in New Haven, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (25°F) | 62 mm (2.4 inches) | 88% | low |
| February Weather | -3°C (27°F) | 65 mm (2.6 inches) | 87% | moderate |
| March Weather | 2°C (36°F) | 63 mm (2.5 inches) | 85% | moderate |
| April Weather | 8°C (46°F) | 89 mm (3.5 inches) | 86% | very high |
| May Weather | 15°C (60°F) | 115 mm (4.5 inches) | 80% | very high |
| June Weather | 21°C (70°F) | 115 mm (4.5 inches) | 80% | very high |
| July Weather | 24°C (75°F) | 71 mm (2.8 inches) | 80% | very high |
| August Weather | 22°C (72°F) | 72 mm (2.8 inches) | 80% | very high |
| September Weather | 18°C (65°F) | 94 mm (3.7 inches) | 80% | high |
| October Weather | 12°C (53°F) | 112 mm (4.4 inches) | 84% | moderate |
| November Weather | 3°C (38°F) | 63 mm (2.5 inches) | 89% | moderate |
| December Weather | 0°C (32°F) | 58 mm (2.3 inches) | 86% | low |