expatwhy.

Negril weather by month

Negril runs from about 25°C in February to 28°C in August, with November the wettest month at 221 mm.

warmest month

August

28°C

coolest month

February

25°C

wettest month

November

221 mm

worst air month

June

16 µg/m³

The whole year, month by month.

Monthly climate normals for Negril
MonthAvg tempRainSunPM2.5
January26°C32 mm333 h6
February25°C36 mm300 h8
March26°C42 mm340 h7
April27°C59 mm355 h6
May28°C103 mm358 h12
June28°C157 mm274 h16
July28°C184 mm341 h12
August28°C111 mm340 h10
September28°C184 mm289 h7
October27°C79 mm337 h5
November26°C221 mm243 h5
December26°C26 mm307 h6

About 3,817 hours of sun a year. Roughly 123 rainy days a year.

These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.

where these numbers come from

  • · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
  • · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.

Last reviewed 2026-05-27. Full method, licences and the list of sources we rejected are on the methodology page.