| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 30.3° | 21.9° | 61.3mm | 8.3 | 70 |
| February | 30.5° | 21.7° | 43.7mm | 6.1 | 74 |
| March | 30.9° | 22.2° | 48mm | 7.4 | 70 |
| April | 31.8° | 23.1° | 90.7mm | 6.1 | 69 |
| May | 32.5° | 23.9° | 148.1mm | 11.3 | 55 |
| June | 33.4° | 24.3° | 93mm | 8.5 | 57 |
| July | 33.8° | 24.7° | 54.9mm | 6.9 | 59 |
| August | 33.9° | 24.7° | 123.4mm | 9.6 | 53 |
| September | 33.5° | 24.5° | 111mm | 11.4 | 51 |
| October | 32.9° | 24.2° | 137.1mm | 13.5 | 49 |
| November | 31.8° | 23.7° | 120.6mm | 11.1 | 59 |
| December | 30.9° | 22.8° | 77.8mm | 10.7 | 63 |
January in Montego Bay averages a daily high of 30.3°C with nights around 21.9°C. Expect roughly 8.3 wet days totalling 61.3mm. Generally workable, with some weather to plan around.
February in Montego Bay averages a daily high of 30.5°C with nights around 21.7°C. Expect roughly 6.1 wet days totalling 43.7mm. Generally workable, with some weather to plan around.
March in Montego Bay averages a daily high of 30.9°C with nights around 22.2°C. Expect roughly 7.4 wet days totalling 48mm. Generally workable, with some weather to plan around.
April in Montego Bay averages a daily high of 31.8°C with nights around 23.1°C. Expect roughly 6.1 wet days totalling 90.7mm. Generally workable, with some weather to plan around.
May in Montego Bay averages a daily high of 32.5°C with nights around 23.9°C. Expect roughly 11.3 wet days totalling 148.1mm. Generally workable, with some weather to plan around.
June in Montego Bay averages a daily high of 33.4°C with nights around 24.3°C. Expect roughly 8.5 wet days totalling 93mm. Generally workable, with some weather to plan around.
July in Montego Bay averages a daily high of 33.8°C with nights around 24.7°C. Expect roughly 6.9 wet days totalling 54.9mm. Generally workable, with some weather to plan around.
August in Montego Bay averages a daily high of 33.9°C with nights around 24.7°C. Expect roughly 9.6 wet days totalling 123.4mm. Demanding conditions — pack for it and plan indoor options.
September in Montego Bay averages a daily high of 33.5°C with nights around 24.5°C. Expect roughly 11.4 wet days totalling 111mm. Demanding conditions — pack for it and plan indoor options.
October in Montego Bay averages a daily high of 32.9°C with nights around 24.2°C. Expect roughly 13.5 wet days totalling 137.1mm. Demanding conditions — pack for it and plan indoor options.
November in Montego Bay averages a daily high of 31.8°C with nights around 23.7°C. Expect roughly 11.1 wet days totalling 120.6mm. Generally workable, with some weather to plan around.
December in Montego Bay averages a daily high of 30.9°C with nights around 22.8°C. Expect roughly 10.7 wet days totalling 77.8mm. Generally workable, with some weather to plan around.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Montego Bay peaks at 74.
Based on 30 years of records, January–April scores highest for comfort in Montego Bay, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 33.9°C.
May is the wettest, averaging 148.1mm of rain across roughly 11.3 wet days.
January is the coolest month, with average daily highs around 30.3°C.