Port Antonio weather in August 2025

Expect 31°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Port Antonio in August. Check more long-term weather averages for Port Antonio in August before you book your next holiday to Jamaica in 2025/2026.

  • 31°C maximum daytime temperature in August in Port Antonio31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in August in Port Antonio13
    13 days with some rainfall
  • 22°C minimum night-time temperature in August in Port Antonio22
    22°C min night temperature
  • 13 hours of daylight per day in August in Port Antonio13
    13 hours of daylight per day
  • High heat & humidity in August in Port AntonioH
    High heat & humidity
  • 197 mm monthly rainfall in August in Port Antonio197
    197 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Port Antonio11
    11+ (Extreme) UV index
  • 29°C sea temperature in August in Port Antonio29
    29°C sea temperature

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The August weather guide for Jamaica (Port Antonio) 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.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Jamaica

How hot is it in Port Antonio in August?

Daytime temperatures usually reach 31°C in Port Antonio in August with high heat and humidity, falling to 22°C at night.

How sunny is it in Port Antonio in August?

There are normally 7 hours of bright sunshine each day in Port Antonio in August - that's 57% of daylight hours.

How warm is the sea around Port Antonio in August?

The average sea temperature around Port Antonio in August is 29°C.

Does it rain in Port Antonio in August?

There are usually 13 days with some rain in Port Antonio in August and the average monthly rainfall is 197mm.

What is the chance of a hurricane in Port Antonio in August?

On average less than 1 day in August in Port Antonio is likely to be affected by the passage of one or more tropical storms.

Port Antonio August sunrise & sunset times

Browse the sunrise and sunset times for Port Antonio in August 2025. Select a month to view Port Antonio sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:44 18:40
Saturday, 16th August 2025 05:48 18:32
Sunday, 31st August 2025 05:51 18:20

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