August Weather in Bayonne, France

Last updated: August 23, 2025

In August, the average temperature in Bayonne, France is a comfortable 21°C (70°F), with a typical low of 14°C (57°F) and highs reaching up to 34°C (94°F). Visitors should prepare for some precipitation, averaging 66 mm (2.6 in) spread over 11 days. Additionally, the region enjoys a relatively high average humidity of 76%, adding to the overall climate experience.

August Temperature in Bayonne

In August in Bayonne, the average temperature is 21°C (70°F). Maximum temperatures can reach up to 34°C (94°F), while minimum temperatures can dip as low as 14°C (57°F). This pleasant climate makes Bayonne an ideal destination for travelers looking to enjoy mild weather and outdoor activities.

August Weather in Bayonne: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Bayonne, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bayonne, August typically has an average temperature of 21°C (70°F), with highs reaching up to 34°C (94°F) and lows dropping to around 14°C (57°F).

Data source: Temperature data for Bayonne generated using information from the Copernicus Climate Change Service.

August Precipitation in Bayonne

In Bayonne in August, the precipitation amount is 66 mm (2.6 in) spread over 11 days.

August Precipitation Trends in Bayonne

The chart displays monthly precipitation patterns in Bayonne, with values for each month alongside August’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August’s conditions compare to those of other months. In Bayonne, August typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

August Humidity in Bayonne

In Bayonne in August, humidity is 76%. With an average temperature of 21°C (70°F), this humidity feels like a warm, muggy embrace that can make outdoor activities feel more strenuous, prompting travelers to take frequent breaks and seek shade to stay comfortable during their adventures.

August Average Humidity in Bayonne

This chart illustrates the average monthly humidity levels in Bayonne, with August’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In August, average humidity in Bayonne is approximately 76%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Bayonne

In Bayonne in August, 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 Bayonne.

Maximum UV Index Levels in Bayonne for August

The chart shows the monthly maximum UV Index (UVI) for Bayonne in August, 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 August, the maximum UV index in Bayonne typically reaches 9, which falls under the very high exposure category.

Data source: Bayonne August 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 August Weather in Bayonne Compares to Other Months

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

This table compares monthly weather conditions in Bayonne, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (47°F)	131 mm (5.2 inches)	86%	low
February Weather	11°C (52°F)	111 mm (4.4 inches)	85%	moderate
March Weather	12°C (53°F)	107 mm (4.2 inches)	82%	moderate
April Weather	13°C (56°F)	89 mm (3.5 inches)	81%	high
May Weather	16°C (61°F)	125 mm (4.9 inches)	80%	very high
June Weather	19°C (66°F)	106 mm (4.2 inches)	81%	very high
July Weather	21°C (70°F)	74 mm (2.9 inches)	80%	very high
August Weather	21°C (70°F)	66 mm (2.6 inches)	76%	very high
September Weather	20°C (67°F)	88 mm (3.5 inches)	75%	high
October Weather	16°C (62°F)	120 mm (4.7 inches)	81%	moderate
November Weather	12°C (54°F)	192 mm (7.6 inches)	85%	moderate
December Weather	11°C (51°F)	221 mm (8.7 inches)	87%	low