Climate averages 1991–2020
Montego Bay weather
in May.
A hot, very wet month: the 5th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Montego Bay: daytime highs average 31.4°C and nights cool to about 24.1°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 220 mm of rain on roughly 24 days, which makes May a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 59 min on an average May day.
The nearest other city in this atlas is Spanish Town (115 km away). In May its highs average 29.9°C, 1.5°C cooler than Montego Bay, with 119 mm of rain.
Among the 4 cities listed in Jamaica, Montego Bay ranks 1st of 4 for the warmest May highs and 4th of 4 for the driest May (rainfall, lowest first). The mean May high of those 4 cities is 30.4°C; Montego Bay is 1.0°C warmer than that mean.
From May to June, average highs rise by 0.8°C to 32.2°C, and monthly rainfall falls from 220 mm to 148 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Montego Bay climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.9°C22.1°C | 22.1°C | 44 | 11.4 | 11.211 h |
| February | 29.5°C21.9°C | 21.9°C | 41 | 11.5 | 11.512 h |
| March | 30.3°C22.2°C | 22.2°C | 58 | 12.7 | 12.012 h |
| April | 31.2°C23.1°C | 23.1°C | 93 | 16.3 | 12.613 h |
| May, selected | 31.4°C24.1°C | 24.1°C | 220 | 23.8 | 13.013 h |
| June | 32.2°C25.0°C | 25.0°C | 148 | 21.8 | 13.213 h |
| July | 32.4°C25.1°C | 25.1°C | 138 | 23.3 | 13.113 h |
| August | 32.3°C25.3°C | 25.3°C | 171 | 26.1 | 12.813 h |
| September | 31.7°C25.1°C | 25.1°C | 205 | 25.9 | 12.312 h |
| October | 30.7°C24.7°C | 24.7°C | 182 | 24.7 | 11.712 h |
| November | 29.5°C23.8°C | 23.8°C | 91 | 16.4 | 11.311 h |
| December | 29.0°C22.9°C | 22.9°C | 50 | 11.4 | 11.011 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Spanish Town in MayJamaica · 115 kmHigh 29.9°C · Low 24.1°C · 119 mm rain
- Portmore in MayJamaica · 122 kmHigh 30.0°C · Low 24.2°C · 119 mm rain
- Kingston in MayJamaica · 130 kmHigh 30.4°C · Low 23.3°C · 102 mm rain
- Manzanillo, Cuba in MayCuba · 224 kmHigh 32.2°C · Low 23.5°C · 167 mm rain
- Bayamo in MayCuba · 250 kmHigh 31.9°C · Low 22.3°C · 188 mm rain
- Contramaestre in MayCuba · 269 kmHigh 31.6°C · Low 22.4°C · 144 mm rain
- Palma Soriano in MayCuba · 280 kmHigh 31.1°C · Low 22.3°C · 129 mm rain
- Santiago de Cuba in MayCuba · 280 kmHigh 30.5°C · Low 23.6°C · 114 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Montego Bay) is explained once on the Montego Bay year overview and on the Sources, method and limits page.