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May Weather in Istres, France

Last updated: August 23, 2025

In May, the average temperature in Istres, France is a pleasant 19°C (66°F). You can expect minimum temperatures to dip to 6°C (44°F), while the maximum can soar up to 33°C (92°F). With an average precipitation of 68 mm (2.7 in) spread over about 8 days, and an overall humidity of 71%, it's a month that beautifully balances warmth and occasional showers.

May Temperature in Istres

In May in Istres, the average temperature is 19°C (66°F). Maximums can reach 33°C (92°F), and minimums can be as low as 6°C (44°F). This variation makes it essential for travelers to pack versatile clothing to comfortably enjoy the diverse weather conditions.

May Weather in Istres: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Istres, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Istres, May typically has an average temperature of 19°C (66°F), with highs reaching up to 33°C (92°F) and lows dropping to around 6°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec455054596675797971635448
Data source: Temperature data for Istres 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.

May Precipitation in Istres

In Istres in May, the precipitation amount is 68 mm (2.7 in) spread over 8 days.

May Precipitation Trends in Istres

The chart displays monthly precipitation patterns in Istres, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Istres, May typically receives around 68 mm (2.7 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec422842676829132242899756
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Istres

In Istres in May humidity is 71%. With an average temperature of 19°C (66°F), this humidity feels like a warm, balmy embrace that enhances the tropical atmosphere, making it a perfect backdrop for leisurely strolls and outdoor adventures, though it may also lead to a slightly sticky feeling as you explore.

May Average Humidity in Istres

This chart illustrates the average monthly humidity levels in Istres, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Istres is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%77%73%73%71%67%66%63%70%80%84%83%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Istres

In Istres in May, 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 Istres.

Maximum UV Index Levels in Istres for May

The chart shows the monthly maximum UV Index (UVI) for Istres in May, 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 May, the maximum UV index in Istres typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2457910997532
Data source: Istres May 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 May Weather in Istres Compares to Other Months

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

This table compares monthly weather conditions in Istres, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)42 mm (1.7 inches)82%low
February Weather10°C (50°F)28 mm (1.1 inches)77%moderate
March Weather12°C (54°F)42 mm (1.6 inches)73%moderate
April Weather15°C (59°F)67 mm (2.7 inches)73%high
May Weather19°C (66°F)68 mm (2.7 inches)71%very high
June Weather24°C (75°F)29 mm (1.1 inches)67%very high
July Weather26°C (80°F)13 mm (0.5 inches)66%very high
August Weather26°C (79°F)22 mm (0.9 inches)63%very high
September Weather22°C (71°F)42 mm (1.7 inches)70%high
October Weather17°C (63°F)89 mm (3.5 inches)80%moderate
November Weather12°C (54°F)97 mm (3.8 inches)84%moderate
December Weather9°C (48°F)56 mm (2.2 inches)83%low

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