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July Weather in Harnes, France

Last updated: August 23, 2025

In July, the average temperature in Harnes, France is a comfortable 19°C (66°F). However, be prepared for a range, as temperatures can dip to a chilly 8°C (47°F) or soar to a scorching 41°C (106°F). With an average precipitation of 51 mm (2.0 in) over 9 days, it's wise to carry an umbrella. The air is quite humid, with an average humidity level of 80%, making it feel a bit warmer than it is.

July Temperature in Harnes

In July in Harnes, the average temperature is 19°C (66°F). The maximum can reach 41°C (106°F) and the minimum can be as low as 8°C (47°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates July temperature patterns in Harnes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Harnes, July typically has an average temperature of 19°C (66°F), with highs reaching up to 41°C (106°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec404246505664666660554643
Data source: Temperature data for Harnes 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 Harnes

In Harnes in July, the total precipitation amount is 51 mm (2.0 in) spread over 9 days.

July Precipitation Trends in Harnes

The chart displays monthly precipitation patterns in Harnes, 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 Harnes, July typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec605962376164517549816092
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Harnes

In Harnes in July humidity is 80%. With an average temperature of 19°C (66°F), this humidity feels like a warm, thick blanket wrapping around you, making outdoor activities feel more strenuous and sticky, which can ultimately dampen the experience of traveling.

July Average Humidity in Harnes

This chart illustrates the average monthly humidity levels in Harnes, 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 Harnes is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Harnes

In Harnes 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 Harnes.

Maximum UV Index Levels in Harnes for July

The chart shows the monthly maximum UV Index (UVI) for Harnes 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 Harnes typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224678875421
Data source: Harnes 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 Harnes Compares to Other Months

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

This table compares monthly weather conditions in Harnes, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather4°C (40°F)60 mm (2.3 inches)91%low
February Weather6°C (43°F)59 mm (2.3 inches)89%low
March Weather8°C (46°F)62 mm (2.4 inches)87%moderate
April Weather10°C (51°F)37 mm (1.4 inches)85%high
May Weather14°C (57°F)61 mm (2.4 inches)82%high
June Weather18°C (64°F)63 mm (2.5 inches)82%very high
July Weather19°C (66°F)51 mm (2.0 inches)80%very high
August Weather19°C (66°F)75 mm (3.0 inches)76%high
September Weather16°C (61°F)49 mm (1.9 inches)82%moderate
October Weather13°C (55°F)81 mm (3.2 inches)89%moderate
November Weather8°C (46°F)60 mm (2.3 inches)92%low
December Weather6°C (43°F)92 mm (3.6 inches)92%low

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