Thailand (Phuket) · May
Low seasonThailand · Asia
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 32° (90°)29– (84–)34 (93) | 33° (91°)30– (86–)35 (95) | 34° (93°)32– (90–)36 (97) | 33° (91°)30– (86–)35 (95) | 32° (90°)28– (82–)34 (93) | 32° (90°)28– (82–)33 (91) | 32° (90°)28– (82–)33 (91) | 31° (88°)27– (81–)33 (91) | 31° (88°)27– (81–)33 (91) | 31° (88°)27– (81–)33 (91) | 32° (90°)27– (81–)33 (91) | 32° (90°)28– (82–)33 (91) |
Ø night, range from coldest to warmest nightØ nightrange | 24° (75°)21– (70–)26 (79) | 24° (75°)22– (72–)26 (79) | 25° (77°)22– (72–)27 (81) | 26° (79°)23– (73–)27 (81) | 26° (79°)24– (75–)28 (82) | 26° (79°)23– (73–)28 (82) | 26° (79°)23– (73–)28 (82) | 26° (79°)23– (73–)28 (82) | 25° (77°)23– (73–)27 (81) | 25° (77°)23– (73–)26 (79) | 25° (77°)23– (73–)26 (79) | 25° (77°)22– (72–)26 (79) |
☀️Sunshine | 9h | 10h | 10h | 9h | 7h | 7h | 7h | 7h | 6h | 6h | 6h | 8h |
🌊Water Temp | 29° (84°) | 30° (86°) | 31° (88°) | 32° (90°) | 31° (88°) | 30° (86°) | 30° (86°) | 30° (86°) | 30° (86°) | 30° (86°) | 30° (86°) | 29° (84°) |
🌧Rain Days | 5d79mm (3.1") | 3d40mm (1.6") | 6d102mm (4.0") | 9d141mm (5.5") | 16d324mm (12.7") | 14d355mm (14.0") | 14d269mm (10.6") | 16d405mm (16.0") | 17d417mm (16.4") | 17d372mm (14.7") | 14d222mm (8.7") | 7d90mm (3.5") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Off-season — lowest travel prices with still acceptable climate.
May in Thailand (Phuket) is generally manageable, but with 16 rain days it's not a reliably sunny month. Better conditions can be found in January, February, March, and December.
Daytime highs reach 32°C (90°F) with a daily average of 29°C (84°F) — nights stay warm at 26°C (79°F). Peaks reach around 34°C (93°F), the coldest nights around 24°C (75°F). The sun shines an average of 7 hours per day; there are 16 rain days with 324 mm (12.8 in) total. The water is a warm 31°C (88°F) — perfect for snorkelling and swimming.
An umbrella or waterproof jacket is essential. On rainy days, plan indoor activities like museums and markets.
Monsoon season: the Similan Islands close and the sea on the west coast gets rougher. In return, surfers arrive for the waves at Kata Noi and Kalim Beach, prices drop noticeably, and the lush green vegetation shows Phuket's tropical side. Songkran in April cools the whole island down.
Packing list for Thailand (Phuket) in May
- Light summer clothes
- Swimwear and beach towel
- Sunscreen
- Sunglasses
- Rain jacket and waterproof shoes
- Insect repellent
- Travel first-aid kit
Frequently Asked Questions
- Is May a good time to visit Thailand (Phuket)?
- May is not an optimal month for Thailand (Phuket) (Score: 56/100), but it is manageable. For better conditions, consider January, February, March, and December.
- How warm is it in Thailand (Phuket) in May?
- In May, Thailand (Phuket) sees daily highs of 32°C (90°F). Nights cool to 26°C (79°F), with a daily average of 29°C (84°F). Peaks reach around 34°C (93°F), the coldest nights around 24°C (75°F).
- How much rain falls in Thailand (Phuket) in May?
- In May, Thailand (Phuket) receives an average of 324 mm (12.8 in) of rain over 16 rain days. With frequent rain days, waterproof clothing is recommended.
- How many sunshine hours does Thailand (Phuket) get in May?
- Thailand (Phuket) averages 7 sunshine hours per day in May — close to the annual average.
- How warm is the water in Thailand (Phuket) in May?
- Water temperature in Thailand (Phuket) in May averages 31°C (88°F) — ideal for swimming and snorkelling.
