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July Weather in Calais, United States

Last updated: June 24, 2025

In July, the average temperature in Calais, United States hovers around 20°C (68°F). You can expect temperatures to range from a cool 10°C (50°F) to a warm 35°C (94°F). During this month, precipitation totals approximately 91 mm (3.6 in) over 12 days, and the average humidity sits at a sticky 84%. Prepare for a mix of warmth and occasional showers!

July Temperature in Calais

In July in Calais, the average temperature is 20°C (68°F). The maximum can reach 35°C (94°F), while the minimum can be as low as 10°C (50°F). This pleasant weather makes it an ideal time for travelers to explore all that Calais has to offer.

July Weather in Calais: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Calais, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Calais, July typically has an average temperature of 20°C (68°F), with highs reaching up to 35°C (94°F) and lows dropping to around 10°C (50°F).
JanFebMarAprMayJunJulAugSepOctNovDec212330425262686860503726
Data source: Temperature data for Calais 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 Calais

In Calais in July, the precipitation amount is 91 mm (3.6 in) over a period of 12 days.

July Precipitation Trends in Calais

The chart displays monthly precipitation patterns in Calais, 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 Calais, July typically receives around 91 mm (3.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec99907212010791917688109136122
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Calais

In Calais in July humidity is 84%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket, making travel a challenge as the air clings to your skin, and every step feels heavier in the mugginess.

July Average Humidity in Calais

This chart illustrates the average monthly humidity levels in Calais, 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 Calais is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%84%82%80%78%82%84%82%82%82%84%82%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Calais

In Calais in July, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Calais.

Maximum UV Index Levels in Calais for July

The chart shows the monthly maximum UV Index (UVI) for Calais 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 Calais typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799887532
Data source: Calais 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 Calais Compares to Other Months

Weather in Calais varies notably across the year, with each month offering distinct climate conditions. This page compares July’s weather to other months in Calais, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Calais, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (22°F)98 mm (3.9 inches)83%low
February Weather-5°C (23°F)90 mm (3.5 inches)84%moderate
March Weather-1°C (30°F)72 mm (2.8 inches)82%moderate
April Weather5°C (42°F)119 mm (4.7 inches)80%high
May Weather11°C (53°F)107 mm (4.2 inches)78%very high
June Weather17°C (62°F)91 mm (3.6 inches)82%very high
July Weather20°C (68°F)91 mm (3.6 inches)84%very high
August Weather20°C (68°F)76 mm (3.0 inches)82%very high
September Weather16°C (61°F)88 mm (3.5 inches)82%high
October Weather10°C (50°F)109 mm (4.3 inches)82%moderate
November Weather3°C (37°F)136 mm (5.4 inches)84%moderate
December Weather-3°C (26°F)122 mm (4.8 inches)82%low

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