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July Weather in New Haven, United States

Last updated: June 24, 2025

In July, the average temperature in New Haven, United States is a pleasant 23°C (74°F), with a minimum of 15°C (60°F) and a maximum that can reach up to 32°C (89°F). Expect about 132 mm (5.2 in) of precipitation over 12 days, accompanied by an average humidity level of 62%. Enjoy the warm days while staying prepared for the occasional shower!

July Temperature in New Haven

In July in New Haven, the average temperature is 23°C (74°F). Maximums can reach 32°C (89°F), while minimums can drop to as low as 15°C (60°F). It's a great time to visit, offering warm weather perfect for outdoor activities and exploration.

July Weather in New Haven: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in New Haven, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In New Haven, July typically has an average temperature of 23°C (74°F), with highs reaching up to 32°C (89°F) and lows dropping to around 15°C (60°F).
JanFebMarAprMayJunJulAugSepOctNovDec333539475766747468604738
Data source: Temperature data for New Haven generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in New Haven

In New Haven in July, the precipitation amount is 132 mm (5.2 in) over the course of 12 days.

July Precipitation Trends in New Haven

The chart displays monthly precipitation patterns in New Haven, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In New Haven, July typically receives around 132 mm (5.2 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec901321091531309313297108171112160
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in New Haven

In New Haven in July humidity is 62%. With an average temperature of 23°C (74°F), this humidity feels like a warm, slightly sticky embrace, making it essential for travelers to stay hydrated and wear breathable clothing while exploring.

July Average Humidity in New Haven

This chart illustrates the average monthly humidity levels in New Haven, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in New Haven is approximately 62%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%81%78%70%69%62%65%68%74%82%80%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in New Haven

In New Haven in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in New Haven.

Maximum UV Index Levels in New Haven for July

The chart shows the monthly maximum UV Index (UVI) for New Haven in July, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In July, the maximum UV index in New Haven typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35681010998642
Data source: New Haven July UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How July Weather in New Haven Compares to Other Months

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.

This table compares monthly weather conditions in New Haven, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (34°F)90 mm (3.5 inches)84%moderate
February Weather1°C (35°F)132 mm (5.2 inches)82%moderate
March Weather4°C (39°F)109 mm (4.3 inches)81%high
April Weather8°C (47°F)153 mm (6.0 inches)78%very high
May Weather14°C (57°F)130 mm (5.1 inches)69%very high
June Weather19°C (67°F)93 mm (3.7 inches)69%very high
July Weather23°C (74°F)132 mm (5.2 inches)62%very high
August Weather23°C (74°F)96 mm (3.8 inches)65%very high
September Weather20°C (69°F)108 mm (4.3 inches)68%very high
October Weather15°C (60°F)171 mm (6.7 inches)74%high
November Weather8°C (47°F)112 mm (4.4 inches)82%moderate
December Weather4°C (39°F)160 mm (6.3 inches)80%low

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