Weather in Montego Bay in June

How June compares

June is the 3rd warmest month of the year in Montego Bay and ranks 14th of 134 destinations we compare for June - see where else is hot in June. Against London's average high of 19.6°C in June, Montego Bay is 11.4°C warmer by day and 13.9°C warmer at night.

Daytime and night-time in June

The typical June day in Montego Bay peaks at 31.0°C, but that is an average: the warmest 10% of days reach 32.2°C or more. About 100% of days top 25°C and almost every pass 30°C. Nights average 25.2°C; one night in ten drops to 24.1°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 34.1°C (2015-06-29) and the coldest night 22.1°C (2018-06-17).

Rain in June

Wet (more than 8 rainy days): about 22 days with 1 mm or more, 148 mm in total. Year to year it varies a lot - the wettest June was 2005 with 273 mm, the driest 2020 with 69 mm. Humidity averages 82%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in June

The sea averages 28.6°C - warm enough to swim (22°c+). Depending on the year it ranges from 28.1°C to 28.9°C. For the warmest sea here, come in September (29.6°C).

Sunshine and daylight

Around 4.8 hours of sunshine a day (estimated from cloud cover), 13.1 hours of daylight: the sun rises about 05:35 and sets about 18:49 local time in mid-June. Average cloud cover is 64%.

Is June 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.

Hot days, with little cooling overnight

June is among Montego Bay's hotter months, and the heat is consistent: 88% of days reach 30°C. Humidity averages 82%, so expect sticky conditions rather than dry warmth. Loose, breathable clothing makes sense, along with a slower pace and access to shade when the midday heat feels tiring. Plan anything energetic for the cooler parts of the day rather than relying on comfortable afternoon conditions. Average night lows of 25°C mean evenings remain warm, so you are unlikely to want much extra clothing for outdoor temperatures. Air conditioning is a useful accommodation priority if warm nights make sleeping difficult.

Rain is the main compromise

With about 22 rainy days, June is a poor match if your holiday depends on reliably dry weather. That figure does not mean rain lasts all day, but it does make flexible outdoor plans sensible. Sunshine averages about 4.8 hours within 13.1 hours of daylight, so long days should not be confused with long stretches of clear sky. Keep a light waterproof handy and leave room to change plans when rain arrives. A covered place to sit can be more useful than packing every day with outdoor commitments. June suits travellers who can enjoy the warmth without needing constant sunshine.

Warm sea, but not a cool-water break

The sea averages 28.6°C, making June well suited to travellers who dislike a chilly start to a swim. Its year-to-year range of 28°C to 29°C also points to consistently warm water. The catch is that swimming will feel warm rather than sharply cooling after time in the heat. For a holiday built around relaxed swims and time resting in the shade, that can work well, provided you accept interruptions from rain. Sea temperature alone does not tell you what conditions will be like when you arrive, so warm water should not be treated as a promise that every day will suit swimming.