nomadseason

August Weather in Castries, France

Last updated: August 23, 2025

The average temperature in Castries, France during August reaches a pleasant 25°C (77°F). However, be prepared for temperature fluctuations, as it can dip to a chilly 12°C (55°F) or soar to a scorching 39°C (102°F). Expect about 43 mm (1.7 in) of precipitation over 4 days, alongside a comfortable average humidity of 63%.

August Temperature in Castries

In August in Castries, the average temperature is 25°C (77°F). The maximum can reach 39°C (102°F), while the minimum can drop to 12°C (55°F). This makes it a great time to explore Castries, with warm days and cooler evenings perfect for enjoying outdoor activities.

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

The chart illustrates August temperature patterns in Castries, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Castries, August typically has an average temperature of 25°C (77°F), with highs reaching up to 39°C (102°F) and lows dropping to around 12°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec444852566472787769605146
Data source: Temperature data for Castries generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Castries

In Castries in August, the precipitation amount is 43 mm (1.7 in) over the course of 4 days.

August Precipitation Trends in Castries

The chart displays monthly precipitation patterns in Castries, 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 Castries, August typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec63467884734422436012114361
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Castries

In Castries in August humidity is 63%. With an average temperature of 25°C (77°F), this humidity feels like a warm embrace, creating a thick atmosphere that can make outdoor activities a little sluggish, but the warmth invites leisurely strolls and relaxation in shaded spots.

August Average Humidity in Castries

This chart illustrates the average monthly humidity levels in Castries, 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 Castries is approximately 63%, 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 August generated using information from the Copernicus Climate Change Service.

August UV Index in Castries

In Castries 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 Castries.

Maximum UV Index Levels in Castries for August

The chart shows the monthly maximum UV Index (UVI) for Castries 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 Castries typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24579101097532
Data source: Castries 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 Castries Compares to Other Months

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

This table compares monthly weather conditions in Castries, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)63 mm (2.5 inches)82%low
February Weather9°C (49°F)46 mm (1.8 inches)77%moderate
March Weather11°C (52°F)78 mm (3.1 inches)73%moderate
April Weather13°C (57°F)84 mm (3.3 inches)73%high
May Weather18°C (64°F)73 mm (2.9 inches)71%very high
June Weather22°C (73°F)44 mm (1.7 inches)67%very high
July Weather25°C (78°F)22 mm (0.9 inches)66%very high
August Weather25°C (77°F)43 mm (1.7 inches)63%very high
September Weather21°C (69°F)60 mm (2.3 inches)70%high
October Weather16°C (61°F)121 mm (4.8 inches)80%moderate
November Weather11°C (52°F)143 mm (5.6 inches)84%moderate
December Weather8°C (46°F)61 mm (2.4 inches)83%low

Compare Castries's Climate with Cities Worldwide