Jamaica weather in August 2025

Expect 90°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Jamaica in August. Check more long-term weather averages for Jamaica in August before you book your next holiday to Jamaica in 2025/2026.

  • 90°F maximum daytime temperature in August in Jamaica (Montego Bay)90
    90°F max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in August in Jamaica (Montego Bay)13
    13 days with some rainfall
  • 73°F minimum night-time temperature in August in Jamaica (Montego Bay)73
    73°F min night temperature
  • 13 hours of daylight per day in August in Jamaica (Montego Bay)13
    13 hours of daylight per day
  • Very high heat & humidity in August in Jamaica (Montego Bay)VH
    Very High heat & humidity
  • 3.7 inches monthly rainfall in August in Jamaica (Montego Bay)3.7
    3.7 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Jamaica (Montego Bay)11
    11+ (Extreme) UV index
  • 84°F sea temperature in August in Jamaica (Montego Bay)84
    84°F sea temperature

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The August weather guide for Jamaica (Montego Bay) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Jamaica destinations

Below are average maximum temperatures at popular countries, regions and places in Jamaica in August. Select a holiday destination to see more weather parameters.

All Jamaica destinations

Metric (°C)  |  Imperial (°F)

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More about Jamaica

How hot is it in Jamaica in August?

Daytime temperatures usually reach 90°F in Montego Bay, Jamaica in August with very high heat and humidity, falling to 73°F at night.

How sunny is it in Jamaica in August?

There are normally 8 hours of bright sunshine each day in Montego Bay, Jamaica in August - that's 59% of daylight hours.

How warm is the sea around Jamaica in August?

The average sea temperature around Montego Bay, Jamaica in August is 84°F.

Does it rain in Jamaica in August?

There are usually 13 days with some rain in Montego Bay, Jamaica in August and the average monthly rainfall is 3.7 inches.

What is the chance of a hurricane in Jamaica in August?

On average less than 1 day in August in Montego Bay, Jamaica is likely to be affected by the passage of one or more tropical storms.

Jamaica August sunrise & sunset times

Browse the sunrise and sunset times for Jamaica in August 2025. Select a month to view Jamaica sunrise and sunset times for the next 12 months. The Jamaica sunrise and sunset times shown below are for Montego Bay.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:50 18:46
Saturday, 16th August 2025 05:54 18:38
Sunday, 31st August 2025 05:57 18:26

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