Weather in Montego Bay in July

How July compares

July is the 1st warmest month of the year in Montego Bay and ranks 22nd of 134 destinations we compare for July - see where else is hot in July. Against London's average high of 21.8°C in July, Montego Bay is 9.5°C warmer by day and 12.0°C warmer at night.

Daytime and night-time in July

The typical July day in Montego Bay peaks at 31.3°C, but that is an average: the warmest 10% of days reach 32.3°C or more. About 100% of days top 25°C and almost every pass 30°C. Nights average 25.5°C; one night in ten drops to 24.7°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest July day here reached 33.8°C (2015-07-05) and the coldest night 22.9°C (2019-07-08).

Rain in July

Wet (more than 8 rainy days): about 23 days with 1 mm or more, 131 mm in total. Year to year it varies a lot - the wettest July was 2011 with 269 mm, the driest 2017 with 55 mm. Humidity averages 81%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in July

The sea averages 28.9°C - warm enough to swim (22°c+). Depending on the year it ranges from 28.5°C to 29.2°C. For the warmest sea here, come in September (29.6°C).

Sunshine and daylight

Around 6.0 hours of sunshine a day (estimated from cloud cover), 13.0 hours of daylight: the sun rises about 05:44 and sets about 18:52 local time in mid-July. Average cloud cover is 54%.

Is July a good time to visit Montego Bay?

It is a reasonable choice: hot days but expect showers. The best months for Montego Bay on our scoring are February, January, March; months averaging 25°C or more: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

Expect heat that lasts into the evening

July is Montego Bay's warmest month, and the heat is consistent: 96% of days reach 30°C. Average daytime highs are 9.5°C above London's July average, so this is a substantial step up from a typical summer at home. Humidity of 81% adds to the discomfort, especially if you plan to stay active through midday. Keep clothing light and breathable, allow time in shade, and prioritise accommodation with air conditioning if warm nights affect your sleep. Evenings are better treated as a break from direct sunshine than a chance to cool down properly. This month suits heat lovers more than travellers who prefer gentle warmth.

Leave room for rain in your plans

With about 22 rainy days, July is not a sensible choice if uninterrupted sunshine is your priority. That does not mean rain lasts all day: there are still about 6 hours of sunshine daily, but it would be unwise to build every day around dry weather. Keep outdoor plans flexible and have somewhere sheltered to spend wetter spells. A light waterproof is useful, though heavy layers are unlikely to feel comfortable in the humidity. The sea averages 28.9°C, making swimming appealing when conditions allow. The overall balance is warm water and substantial sunshine alongside frequent rain, rather than a dependable dry-weather beach holiday.