nomadseason

August Weather in Portmore, Jamaica

Last updated: August 23, 2025

In August, the average temperature in Portmore, Jamaica is a warm 28°C (82°F), with highs reaching up to 33°C (91°F) and lows dropping to 24°C (75°F). Expect about 90 mm (3.6 in) of rain over approximately 14 days, contributing to an average humidity of 78%. Perfect for those who love a tropical climate!

August Temperature in Portmore

In August in Portmore, the average temperature is 28°C (82°F), with maximums reaching up to 33°C (91°F) and minimums dipping as low as 24°C (75°F). This warm weather makes it an ideal time for travelers seeking a sunny getaway.

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

The chart illustrates August temperature patterns in Portmore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Portmore, August typically has an average temperature of 28°C (82°F), with highs reaching up to 33°C (91°F) and lows dropping to around 24°C (75°F).
JanFebMarAprMayJunJulAugSepOctNovDec767677787981828281797877
Data source: Temperature data for Portmore 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 Portmore

In Portmore in August, the precipitation amount is 90 mm (3.6 in) accumulated over a span of 14 days.

August Precipitation Trends in Portmore

The chart displays monthly precipitation patterns in Portmore, 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 Portmore, August typically receives around 90 mm (3.6 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec2524377111249389112218611028
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

August Humidity in Portmore

In Portmore in August humidity is 78%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting and overwhelming, potentially leading to a slower pace while exploring.

August Average Humidity in Portmore

This chart illustrates the average monthly humidity levels in Portmore, 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 Portmore is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%76%75%76%77%79%79%78%77%76%78%77%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Portmore

In Portmore 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 Portmore.

Maximum UV Index Levels in Portmore for August

The chart shows the monthly maximum UV Index (UVI) for Portmore 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 Portmore typically reaches 13, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec911131413131313121298
Data source: Portmore 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 Portmore Compares to Other Months

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

This table compares monthly weather conditions in Portmore, showing how August’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather25°C (77°F)25 mm (1.0 inches)76%very high
February Weather25°C (77°F)24 mm (0.9 inches)76%extreme
March Weather25°C (77°F)37 mm (1.4 inches)75%extreme
April Weather25°C (78°F)71 mm (2.8 inches)76%extreme
May Weather26°C (79°F)112 mm (4.4 inches)77%extreme
June Weather27°C (81°F)49 mm (1.9 inches)79%extreme
July Weather28°C (82°F)37 mm (1.5 inches)79%extreme
August Weather28°C (82°F)90 mm (3.6 inches)78%extreme
September Weather27°C (81°F)122 mm (4.8 inches)77%extreme
October Weather26°C (79°F)185 mm (7.3 inches)76%extreme
November Weather26°C (79°F)110 mm (4.3 inches)78%very high
December Weather25°C (78°F)28 mm (1.1 inches)77%very high

Compare Portmore's Climate with Cities Worldwide