August Weather in Saint Joseph, Dominica

Last updated: August 23, 2025

In Saint Joseph, Dominica, the average temperature in August is a warm 27°C (81°F), with a minimum of 25°C (77°F) and a maximum of 29°C (84°F). Expect some rain, as precipitation totals around 112 mm (4.4 in) over approximately 20 days. The air is quite humid, with an average humidity of 82%.

August Temperature in Saint Joseph

In August in Saint Joseph, the average temperature is 27°C (81°F). Maximums can reach 29°C (84°F), while minimums can drop to 25°C (77°F). This mild and pleasant weather makes Saint Joseph an ideal destination for travelers seeking warmth and comfort.

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

The chart illustrates August temperature patterns in Saint Joseph, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Joseph, August typically has an average temperature of 27°C (81°F), with highs reaching up to 29°C (84°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec777777787980808181818079
Data source: Temperature data for Saint Joseph 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 Joseph

In Saint Joseph in August, the precipitation amount is 112 mm (4.4 in) over a span of 20 days.

August Precipitation Trends in Saint Joseph

The chart displays monthly precipitation patterns in Saint Joseph, 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 Joseph, August typically receives around 112 mm (4.4 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec353535333866911121181229956
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Saint Joseph

In Saint Joseph in August humidity is 82%. With an average temperature of 27°C (81°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting, and leaving you longing for the relief of air-conditioned spaces during your travels.

August Average Humidity in Saint Joseph

This chart illustrates the average monthly humidity levels in Saint Joseph, 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 Joseph is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%77%78%78%80%82%84%82%80%80%80%79%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Saint Joseph

In Saint Joseph in August, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in Saint Joseph.

Maximum UV Index Levels in Saint Joseph for August

The chart shows the monthly maximum UV Index (UVI) for Saint Joseph 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 Joseph typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec10111314141314131312109
Data source: Saint Joseph 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 Joseph Compares to Other Months

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

This table compares monthly weather conditions in Saint Joseph, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (78°F)35 mm (1.4 inches)78%very high
February Weather25°C (77°F)35 mm (1.4 inches)77%extreme
March Weather25°C (77°F)35 mm (1.4 inches)78%extreme
April Weather25°C (78°F)33 mm (1.3 inches)78%extreme
May Weather26°C (79°F)38 mm (1.5 inches)80%extreme
June Weather27°C (80°F)66 mm (2.6 inches)82%extreme
July Weather27°C (81°F)91 mm (3.6 inches)84%extreme
August Weather27°C (81°F)112 mm (4.4 inches)82%extreme
September Weather27°C (82°F)118 mm (4.6 inches)80%extreme
October Weather27°C (81°F)122 mm (4.8 inches)80%extreme
November Weather26°C (80°F)99 mm (3.9 inches)80%very high
December Weather26°C (79°F)56 mm (2.2 inches)79%very high

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