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August Weather in Saint-Brieuc, France

Last updated: August 23, 2025

In August, the average temperature in Saint-Brieuc, France hovers around 17°C (63°F), with a pleasant range from a cool 8°C (47°F) to a warm 31°C (88°F). Expect about 44 mm (1.7 in) of precipitation spread over 9 days, contributing to an average humidity of 71%. Whether you’re planning outdoor activities or relaxation, this climate has something to offer!

August Temperature in Saint-Brieuc

In August in Saint-Brieuc, the average temperature is 17°C (63°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 8°C (47°F). Overall, it's a great time to visit Saint-Brieuc, offering a pleasant range of temperatures for outdoor activities.

August Weather in Saint-Brieuc: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Saint-Brieuc, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Brieuc, August typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec444547505561646360554846
Data source: Temperature data for Saint-Brieuc 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.

August Precipitation in Saint-Brieuc

In Saint-Brieuc in August, the precipitation amount is 44 mm (1.7 in) over the course of 9 days.

August Precipitation Trends in Saint-Brieuc

The chart displays monthly precipitation patterns in Saint-Brieuc, 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 Saint-Brieuc, August typically receives around 44 mm (1.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec476555436597484444996495
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint-Brieuc

In Saint-Brieuc in August, humidity is 71%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet a bit sticky, so travelers should stay hydrated and take breaks in the shade.

August Average Humidity in Saint-Brieuc

This chart illustrates the average monthly humidity levels in Saint-Brieuc, 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 Saint-Brieuc is approximately 71%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%85%84%81%77%63%71%76%89%90%90%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint-Brieuc

In Saint-Brieuc in August, 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 Saint-Brieuc.

Maximum UV Index Levels in Saint-Brieuc for August

The chart shows the monthly maximum UV Index (UVI) for Saint-Brieuc 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 Saint-Brieuc typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986422
Data source: Saint-Brieuc 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 Saint-Brieuc Compares to Other Months

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

This table compares monthly weather conditions in Saint-Brieuc, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)47 mm (1.9 inches)89%low
February Weather7°C (45°F)65 mm (2.6 inches)88%moderate
March Weather8°C (48°F)55 mm (2.2 inches)85%moderate
April Weather10°C (51°F)43 mm (1.7 inches)84%high
May Weather13°C (55°F)65 mm (2.6 inches)81%very high
June Weather16°C (61°F)97 mm (3.8 inches)77%very high
July Weather18°C (64°F)48 mm (1.9 inches)63%very high
August Weather17°C (63°F)44 mm (1.7 inches)71%very high
September Weather16°C (61°F)44 mm (1.7 inches)76%high
October Weather13°C (55°F)99 mm (3.9 inches)89%moderate
November Weather9°C (49°F)64 mm (2.5 inches)90%low
December Weather8°C (47°F)95 mm (3.7 inches)90%low

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