Best Time to Visit Phuket & Krabi

Phuket and Krabi have a tropical climate, with temperatures between about 24°C and 34°C through the year. The real difference between seasons is rainfall and sea conditions. Most visitors plan around the dry months, but the busy season and the rainy season each bring different trade-offs, so the right month depends on whether you care more about boat days, crowds or price. This guide shows what to expect in each part of the year.

What is the weather like through the year?

Temperatures are steady. Daytime highs sit around 31°C to 34°C, and night lows are around 24°C to 25°C in most months. Humidity is high in the wetter months. The main variable is rain, which falls lightly from December to February, builds in March and April, peaks from May to October, and then eases in November. Because the sun is strong all year, plan beach time for the morning and late afternoon.

Which months suit travellers most?

November to March is the most suitable period. January and February have the least rain, at about 23 mm and 26 mm on average, and the sea conditions suit island trips. The downside is that these are high-season months, so hotel and flight prices are higher and boats fill quickly. November and March are good shoulder months, with more manageable crowds.

Is the wet season worth it?

From May to October, rain is frequent. June and July each see around 250 mm to 285 mm, and August is similar. September is the wettest month, at about 387 mm on average, and October is very wet early in the month before conditions usually improve. Crowds are lower, and some travellers prefer the calmer resorts. Boat trips may be disrupted, so choose a flexible itinerary with spare days.

Month by month

• January: hot and mostly drier, about 24°C to 32°C, with 23 mm of rain. High-season crowds.
• February: hot and relatively dry, about 24°C to 33°C, with 26 mm of rain. High-season crowds.
• March: hot and mostly dry, about 25°C to 34°C, with 59 mm of rain. Crowds begin to ease after the peak.
• April: very hot, about 25°C to 34°C, with 138 mm of rain. Moderate to high crowds around the Thai New Year period.
• May: hot and humid, about 25°C to 33°C, with 270 mm of rain. Lower crowds.
• June: humid with frequent showers and rougher sea conditions at times, about 25°C to 32°C, with 248 mm of rain.
• July: wet and humid with frequent rain, about 25°C to 32°C, with 284 mm of rain. Lower-season crowds.
• August: wet and humid with frequent showers, about 25°C to 32°C, with 283 mm of rain.
• September: the wettest period, about 24°C to 31°C, with 387 mm of rain and generally low crowds.
• October: very wet early in the month, about 24°C to 31°C, with 296 mm of rain; conditions usually improve later.
• November: rainfall declines, about 24°C to 31°C, with 174 mm of rain. Crowds begin to increase toward the high season.
• December: hot and mostly drier, about 24°C to 32°C, with 70 mm of rain. High-season crowds, especially around the holidays.

Which month suits which trip?

For boat days to the Phi Phi Islands, the Four Islands and Phang Nga Bay, choose November to March. For a quieter beach stay and lower prices, choose May to October, and book flexible boat days. March and November balance warm weather with crowds that are easing or building, rather than at their peak. Our Phuket Beach Break 4N and Krabi Four Islands 3N packages can be planned for any of these months, and a planner can suggest the dates that suit your trip most.

How was this guide compiled?

This guide is compiled from published tourism, weather and transport information and was last checked on 2 November 2026. Monthly figures are rounded averages, so expect day-to-day variation, and check the forecast closer to your dates.

Where to go next

For the full overview, read the Phuket and Krabi travel guide. To see what each month allows, read places to visit in Phuket and Krabi and things to do in Phuket and Krabi. When you are ready, compare the Phuket and Krabi tour packages or read the Thailand travel guide for the wider country.