Jamaica weather in December
Jamaica averages 29°C by day and 23°C at night in December, with the sea at 29°C and 14 days with at least 1 mm of rain.
Day
29°C
Night
23°C
Sea
29°C
Rainy days
14
Flight from London
9½h
What December feels like
December is hot but wet in Jamaica: rainy season, so pack for showers.
The sea is warm at 29°C: comfortable for long swims.
It is rainy season, with rain on about 14 days.
Of the 48 sun destinations we track, Jamaica is the #13 warmest in December.
Want it warmer in December?
These are hotter than Jamaica this month for at most an hour and a half more flying:
Jamaica weather by month
December is highlighted. Compare with November and January, or see the full year in Jamaica.
Jamaica in December: quick answers
Is Jamaica hot in December?
December is hot but wet in Jamaica: rainy season, so pack for showers. Average highs are 29°C and lows 23°C.
Can you swim in Jamaica in December?
The sea is warm at 29°C: comfortable for long swims.
Does it rain in Jamaica in December?
It is rainy season, with rain on about 14 days.
What is the warmest month in Jamaica?
August, at an average high of 32°C. The coolest is January at 28°C.
How long is the flight to Jamaica from the UK?
About 9½h direct from London, estimated from the 7,551 km distance. Check your airline for exact times.
Still choosing? See where is hot in December for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in December from 2016 to 2025 for Montego Bay, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Jamaica in December?
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