Jamaica weather by month
Jamaica is warmest in August (32°C average high) and coolest in January (28°C). For warm, mostly dry weather, go December to February. The sea is warm enough for easy swimming all year.
Warmest month
August
32°C
Coolest month
January
28°C
Wettest month
October
224 mm
Flight from London
9½h
direct, estimated
Planning a trip to Jamaica?
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Jamaica temperature by month
Tap a month for the detail and warmer alternatives.
| Month | Day | Night | Sea | Rain |
|---|---|---|---|---|
| January | 28°C | 22°C | 28°C | 53 mm |
| February | 28°C | 22°C | 27°C | 50 mm |
| March | 29°C | 22°C | 28°C | 66 mm |
| April | 30°C | 23°C | 28°C | 92 mm |
| May | 31°C | 24°C | 29°C | 186 mm |
| June | 31°C | 24°C | 30°C | 135 mm |
| July | 31°C | 25°C | 30°C | 99 mm |
| August | 32°C | 25°C | 30°C | 132 mm |
| September | 32°C | 25°C | 31°C | 163 mm |
| October | 30°C | 24°C | 31°C | 224 mm |
| November | 29°C | 24°C | 30°C | 108 mm |
| December | 29°C | 23°C | 29°C | 58 mm |
When to go to Jamaica
What is the best month to visit Jamaica for sun?
For warm, mostly dry days, go December to February, going by our 10-year averages.
What is the hottest month in Jamaica?
August averages 32°C. January is the coolest at 28°C.
When does it rain most in Jamaica?
October, with about 224 mm of rain.
When is the sea warm enough to swim in Jamaica?
all year, when the sea averages 21°C or more.
How we measured this
Daily averages from 2016 to 2025 for Montego Bay, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis); sea temperatures are 2023 to 2025 averages from the Open-Meteo marine archive. Rain is the average monthly total.
Going to Jamaica?
Save the places you find on TikTok and Instagram for Jamaica to one map, and Dream Trip will plan the days around them.
