Weather in Phuket in June

How June compares

June is the 5th warmest month of the year in Phuket and ranks 36th of 134 destinations we compare for June - see where else is hot in June. Within Thailand it is 6th of 6 (Thailand in June). Against London's average high of 19.6°C in June, Phuket is 9.2°C warmer by day and 15.1°C warmer at night.

Daytime and night-time in June

The typical June day in Phuket peaks at 28.8°C, but that is an average: the warmest 10% of days reach 29.7°C or more. About 100% of days top 25°C and 1 in 14 pass 30°C. Nights average 26.4°C; one night in ten drops to 25.3°C or lower, so pack a layer for evenings. Between 1991 and 2020 the hottest June day here reached 32.8°C (2018-06-13) and the coldest night 23.7°C (2018-06-19).

Rain in June

Wet (more than 8 rainy days): about 22 days with 1 mm or more, 245 mm in total. Year to year it varies a lot - the wettest June was 2005 with 423 mm, the driest 2012 with 118 mm. Humidity averages 81%, which makes the heat feel heavier than the thermometer suggests.

Sea temperature in June

The sea averages 29.8°C - warm enough to swim (22°c+). Depending on the year it ranges from 29.2°C to 30.3°C. For the warmest sea here, come in April (30.2°C).

Sunshine and daylight

Around 1.9 hours of sunshine a day (estimated from cloud cover), 12.5 hours of daylight: the sun rises about 06:10 and sets about 18:44 local time in mid-June. Average cloud cover is 85%.

Is June a good time to visit Phuket?

It is a reasonable choice: hot days but expect showers. The best months for Phuket 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.

Warm throughout the day, with little relief at night

The heat is consistent rather than often extreme: every day reaches 25°C, while only 7% reach 30°C. The catch is humidity of 81%, which can make time outdoors feel more tiring than the temperature alone suggests. Keep clothing light and loose, leave room for breaks from the midday heat, and prioritise somewhere comfortable to cool down. Nights average 26°C, so do not expect the evening to bring the freshness you might get at home. The sea is warm enough for swimming, but that also means it offers limited cooling. June therefore suits travellers who enjoy sustained warmth better than those who need cooler evenings to feel comfortable.

Plan around rain, not guaranteed beach days

With about 22 rainy days, rain needs to be part of the plan rather than treated as an unlikely interruption. The figures do not tell you when showers will arrive or how long they will last, so avoid assuming that mornings or afternoons will reliably stay dry. There are 12.5 hours of daylight, but only about 1.9 hours of sunshine: long days do not translate into long spells of sun. Pack a light waterproof and keep outdoor plans easy to change. If this is a long-awaited trip mainly for sunny beach time, February, January or March are better choices on the overall weather balance. June makes more sense if warmth matters more than sunshine.