Verdict: Fair month
Phuket Weather in May
May runs warm in Phuket, with daily highs around 31°C (88°F) and nights near 26°C (79°F). It's also the wet side of the calendar: rain falls on about 26 days, so build flexibility into plans. May is workable in Phuket if your dates are fixed — just plan around the conditions.
Average high
31°C / 88°F
Average low
26°C / 79°F
Rain days
~26
Precipitation
211 mm
What to pack for Phuket in May
- Light, breathable clothing — linen and technical fabrics earn their keep
- High-SPF sunscreen, sunglasses, and a refillable water bottle
- Rain gear is non-negotiable — expect rain on roughly 26 days
- Comfortable walking shoes — every guide on this site assumes you'll use them
May against the rest of the year
Warmest in Phuket: Mar (33°C / 91°F) · Coolest: Sep (29°C / 84°F) · Wettest: Oct (~28 rain days)
30°
24°
Jan
32°
25°
Feb
33°
25°
Mar
32°
26°
Apr
31°
26°
May
30°
25°
Jun
30°
25°
Jul
30°
25°
Aug
29°
25°
Sep
29°
24°
Oct
29°
24°
Nov
29°
24°
Dec
Daily highs / lows in °C · bars show rain days per month · ERA5 climate normals (2020–2024)