May · Thailand
Best time to visit Phuket in May Weather, crowds & prices
Weather in Phuket in May
Average temperature 29°C, 291 mm of rain, about 20 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
6.2/10
Ranked #6 of 12 months
- Avg temp
- 29°C
- Rainfall
- 291 mm
- Humidity
- 81%
- Days with 6h+ sun
- 20
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
May in Phuket scores 6.2/10 for beach and coastal travel - an above-average month (#6 of 12). Expect around 29°C, 291 mm of rain, and roughly 20 days with 6+ hours of sunshine this month.
Phuket’s Andaman beaches and island-hopping shine brightest in the dry, calm window from January through March.
May in Phuket: mixed conditions, plan around the weather
Days in May average 29°C (85°F) and humidity near 81% — front-load outdoor plans before the heat builds and treat the middle of the day as indoor time.
This is the year's wettest stretch at 291 mm, but with about 20 days with 6+ hours of sunshine it is not a total loss; an indoor fallback covers the risk.
That is 6.2/10 on the same scale — 6th of 12 months, versus 8.4/10 for the best month here.
Pack the lightest breathable clothing you own, a hat, and more water than feels necessary, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination. That combination — decent conditions at the lowest rates of the year — is the best value window on this page.
If your dates are flexible, January is materially better in Phuket — 2.2 points higher on the same scale.
Frequently asked
- What is the weather like in Phuket in May?
- In May, Phuket averages 29°C, 291 mm of rain, and about 20 days with 6+ hours of sunshine. Its climate-comfort score is 6.2/10.
- Is May a good time to visit Phuket?
- May earns a 6.2/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Phuket in May?
- Expect about 291 mm of rain in May. Average humidity is 81% and there are about 20 days with 6+ hours of sunshine.
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