What September feels like in Phuket
September falls in Phuket's wet season — the rainfall numbers rise clearly above the dry months. Expect proper heat in the afternoon — slow down between noon and four. Evenings ease the heat only slightly, and nights remain very warm. The air is muggy, so it feels hotter than the thermometer suggests.
Rain in Phuket in September
September is persistently wet here: some rain falls on most days. Rainy days are intense, averaging about 11.5 mm (0.5 in) — downpours rather than drizzle. The yearly figure is similar, around 9.2 mm per wet day. It is among the three wettest months of the year.
Daylight and sunshine in September
Mid-month, Phuket gets 12 h 10 min of daylight, from sunrise near 6:17 am to sunset near 6:27 pm. Evenings are drawing in — 13 min less daylight than mid-August. Close to the equator, sunrise and sunset times move very little through the year. The sun is out for roughly 71% of those daylight hours, so there are plenty of bright spells.
How September compares to the rest of the year
Ranked by average high, September comes out as the 3rd coolest month in Phuket. Compared with August, afternoons are 0.3°C (0.5°F) cooler, with 44 mm more rain. Temperatures barely move from one month to the next here. The next month's average high: 28.5°C (83.3°F).
Who September suits
- Sightseeing: less ideal — rain falls on more than half the days.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
- Beach: less ideal — too many rainy days.
- Museums & indoor: a good choice — with rain on most days, galleries and museums make easy plans.
Tips for visiting Phuket in September
Rain Protection
A compact umbrella and a light waterproof jacket.
Sun Protection
Sunscreen, a hat and sunglasses; light breathable clothes.
Quick questions
How warm is Phuket in September?
Expect around 28.5°C (83.3°F) in the afternoon and 25.4°C (77.7°F) at night, which most visitors would call hot.
Does it rain a lot in Phuket in September?
Quite a lot — 265 mm spread over about 23 days.
What should I wear in Phuket in September?
Based on the averages: rain protection and sun protection. Evenings feel similar to the day, so the same clothes work from morning to night.
Is September or October better for visiting Phuket?
On our 12-month climate ranking, September comes out ahead (#10 of 12 vs #12). October has more rainy days.