Jamaica weather in January
Jamaica averages 28°C by day and 22°C at night in January, with the sea at 28°C and about 53 mm of rain in the month.
Day
28°C
Night
22°C
Sea
28°C
Rain
53 mm
Flight from London
9½h
What January feels like
January is hot in Jamaica: proper beach weather.
The sea is warm at 28°C: comfortable for long swims.
Rain is occasional: about 53 mm in the month.
That is 21°C warmer than an average January day in London.
Of the 56 sun destinations we track, Jamaica is the #16 warmest in January.
Comparing places? See which Caribbean island is warmest in winter for every winter month, place by place.
Going to Jamaica in January?
Share the TikToks and Instagram Reels you've saved for Jamaica to Dream Trip. It finds the places, pins them on a map and builds your days around them.
Want it warmer in January?
These are hotter than Jamaica this month for at most an hour and a half more flying:
Jamaica weather by month
January is highlighted. Compare with December and February, or see the full year in Jamaica.
| 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 |
Jamaica in January: quick answers
Is Jamaica hot in January?
January is hot in Jamaica: proper beach weather. Average highs are 28°C and lows 22°C.
Can you swim in Jamaica in January?
The sea is warm at 28°C: comfortable for long swims.
Does it rain in Jamaica in January?
Rain is occasional: about 53 mm in the month.
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 January for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in January 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. Rain is the average monthly total. 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 January?
Save the restaurants, beaches and views you find on TikTok and Instagram for Jamaica straight to a map, then let Dream Trip turn them into a day-by-day plan.
