When is the best time to visit Phuket and the southern islands?

The weather in Phuket and the southern islands, month by month

Daytime and night-time temperatures, then rainfall. Records 2015-2024 (Maya Bay). The exact figures are in the table below.
The table of records, month by month
Real 2015-2024 records at the reference point "Maya Bay" (ERA5 reanalysis via Open-Meteo; sea: 2023-2024 averages (Open-Meteo Marine) on the nearest coast (Maya Bay)). Published as open data.
MonthHighLowSunshineRainfallRainy daysSeaBest
January29°26°10.3 h20 mm7 d29°✓
February30°26°10.9 h35 mm7 d29°✓
March30°27°11 h60 mm10 d30°✓
April30°27°10.6 h135 mm21 d31°✓
May30°28°9.7 h237 mm24 d31°
June30°27°9.6 h210 mm21 d31°
July29°27°9.3 h224 mm22 d30°
August29°27°9.4 h207 mm23 d30°
September29°27°8.8 h286 mm23 d30°
October29°26°8.8 h308 mm27 d30°
November28°26°8.5 h277 mm27 d30°✓
December29°26°9.5 h125 mm15 d29°✓

The four seasons in Phuket and the southern islands, in figures

What the 2015-2024 records (Maya Bay) show, season by season, to compare at a glance instead of reading twelve rows of a table.

Dec → Feb

29 to 30°
nights 26°
  • 10 rainy days · 60 mm
  • 10.2 h of sun
  • sea 29°
Recommended

Mar → May

30°
nights 27 to 28°
  • 18 rainy days · 144 mm
  • 10.4 h of sun
  • sea 31°
2 months recommended

Jun → Aug

29 to 30°
nights 27°
  • 22 rainy days · 214 mm
  • 9.4 h of sun
  • sea 30°
Not recommended

Sep → Nov

28 to 29°
nights 26 to 27°
  • 26 rainy days · 290 mm
  • 8.7 h of sun
  • sea 30°
1 month recommended

Book early for November to April

The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.

Some links are affiliate links: we may earn a commission, at no extra cost to you. The selection does not depend on these links.

What to do in Phuket and the southern islands, month by month

ActivityJanFebMarAprMayJunJulAugSepOctNovDec
Hiking
Towns & culture
Events11111

EventsSongkranAprilPhuket Vegetarian FestivalSeptember to OctoberLoy KrathongNovemberPhuket King's Cup RegattaDecemberDetails ↓

favourablewith compromisesunfavourable

Beach & swimming: good conditions all twelve months.

Diving & snorkelling: good conditions all twelve months.

Grid derived from the records (temperature, rainfall, sea), not from an opinion.

What's on in Phuket and the southern islands, month by month?

What comes back every year, and when. One of these events fills the hotels and pushes prices up: something to aim for or to avoid, depending on what you want.

Travelling off-peak

Month by month, in detail

January

Recommended
29°26° at night
  • 20 mm · 7 d
  • 10.3 h
  • sea 29°

High season, book early

February

Recommended
30°26° at night
  • 35 mm · 7 d
  • 10.9 h
  • sea 29°

High season, book early

March

Recommended
30°27° at night
  • 60 mm · 10 d
  • 11 h
  • sea 30°

Busy, without the crush

April

Recommended
30°27° at night
  • 135 mm · 21 d
  • 10.6 h
  • sea 31°

High season, book early

May

Fair
30°28° at night
  • 237 mm · 24 d
  • 9.7 h
  • sea 31°

Low season, lower prices

June

Not recommended
30°27° at night
  • 210 mm · 21 d
  • 9.6 h
  • sea 31°

Low season, lower prices

July

Not recommended
29°27° at night
  • 224 mm · 22 d
  • 9.3 h
  • sea 30°

Low season, lower prices

August

Not recommended
29°27° at night
  • 207 mm · 23 d
  • 9.4 h
  • sea 30°

Low season, lower prices

September

Not recommended
29°27° at night
  • 286 mm · 23 d
  • 8.8 h
  • sea 30°

Low season, lower prices

October

Fair
29°26° at night
  • 308 mm · 27 d
  • 8.8 h
  • sea 30°

Low season, lower prices

November

Recommended
28°26° at night
  • 277 mm · 27 d
  • 8.5 h
  • sea 30°

Busy, without the crush

December

Recommended
29°26° at night
  • 125 mm · 15 d
  • 9.5 h
  • sea 29°

High season, book early

Read the twelve months in detail

January. 29 °C in the afternoon and 26 °C at night. Rain stays light: 20 mm over 7 days. Plenty of sunshine: 10.3 h a day on average. The sea is at 29 °C, a proper swim. High season: book early.

February. 30 °C in the afternoon and 26 °C at night. Rain stays light: 35 mm over 7 days. Plenty of sunshine: 10.9 h a day on average. The sea is at 29 °C, a proper swim. High season: book early.

March. 30 °C in the afternoon and 27 °C at night. Expect 10 days of rain in the month (60 mm). Plenty of sunshine: 11 h a day on average. The sea is at 30 °C, a proper swim. Busy season, without the crush.

April. 30 °C in the afternoon and 27 °C at night. Frequent rain: 135 mm over 21 days. Plenty of sunshine: 10.6 h a day on average. The sea is at 31 °C, a proper swim. High season: book early.

May. 30 °C in the afternoon and 28 °C at night. Frequent rain: 237 mm over 24 days. Plenty of sunshine: 9.7 h a day on average. The sea is at 31 °C, a proper swim. Low season: fewer people, lower prices.

June. 30 °C in the afternoon and 27 °C at night. A very wet month, 210 mm of rain over 21 days. Plenty of sunshine: 9.6 h a day on average. The sea is at 31 °C, a proper swim. Low season: fewer people, lower prices.

July. 29 °C in the afternoon and 27 °C at night. A very wet month, 224 mm of rain over 22 days. Plenty of sunshine: 9.3 h a day on average. The sea is at 30 °C, a proper swim. Low season: fewer people, lower prices.

August. 29 °C in the afternoon and 27 °C at night. A very wet month, 207 mm of rain over 23 days. Plenty of sunshine: 9.4 h a day on average. The sea is at 30 °C, a proper swim. Low season: fewer people, lower prices.

September. 29 °C in the afternoon and 27 °C at night. A very wet month, 286 mm of rain over 23 days. Expect 8.8 h of sunshine a day. The sea is at 30 °C, a proper swim. Low season: fewer people, lower prices.

October. 29 °C in the afternoon and 26 °C at night. Frequent rain: 308 mm over 27 days. Expect 8.8 h of sunshine a day. The sea is at 30 °C, a proper swim. Low season: fewer people, lower prices.

November. 28 °C in the afternoon and 26 °C at night. Frequent rain: 277 mm over 27 days. Expect 8.5 h of sunshine a day. The sea is at 30 °C, a proper swim. Busy season, without the crush.

December. 29 °C in the afternoon and 26 °C at night. Frequent rain: 125 mm over 15 days. Plenty of sunshine: 9.5 h a day on average. The sea is at 29 °C, a proper swim. High season: book early.

Same season, other ideas

Their best time overlaps with this one: worth comparing before you book.

Frequently asked questions

When is the best time to visit Phuket and the southern islands?

November to April: over these months, recorded highs range from 28 to 30 °C, with 15 days of rain a month on average (2015-2024 records, Maya Bay).

Which month should you avoid in Phuket and the southern islands?

September: it is the wettest of the months to avoid, with 286 mm over 23 days of rain on average, according to 2015-2024 records at the reference point (Maya Bay).

What is the hottest month in Phuket and the southern islands?

February, with 30 °C on average in the afternoon and 26 °C at night. 2015-2024 records (Maya Bay).

What is the coldest month in Phuket and the southern islands?

November, with 28 °C at best during the day and 26 °C at night. 2015-2024 records (Maya Bay).

What is the driest month in Phuket and the southern islands?

January: 20 mm over 7 days of rain, against 308 mm in October, the wettest month.

Which month has the most sunshine in Phuket and the southern islands?

March, with 11 h of sunshine a day on average. Note that this counts clear skies, not the length of the day.

When can you swim in Phuket and the southern islands?

The water never drops below 22 °C: from 29 to 31 °C depending on the month (warmest in April), measured in 2023-2024 on the nearest coast (Maya Bay).

When is the best time to hike in Phuket and the southern islands?

January: highs between 12 and 29 °C and no more than 9 days of rain a month according to 2015-2024 records (Maya Bay), the safest windows for walking.

Plan this trip

Compare with other destinations

Photos: Nothing Ahead / Pexels · Ridwan Afriandy / Pexels · Ceylon Frames / Pexels · Siarhei Nester / Pexels