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Jamaica weather in August 2025
Expect daytime maximum temperatures of 90°F in Jamaica in August and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 3.7 inches of rainfall in the month.
- 90°F max day temperature
90 - 8 hours of sunshine per day
- 13 days with some rainfall
13 - 73°F min night temperature
73 - 13 hours of daylight per day
13 - Very High heat & humidity
VH - 3.7 inches of monthly rainfall
3.7 - 11+ (Extreme) UV index
11 - 84°F sea temperature
84
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Recommended for Jamaica
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.
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Metric (°C) | Imperial (°F)
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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