Hot
Average highs reach 34°C, so days can feel very hot.
May verdict
Mixed for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 6.7h per day, enough for a balanced month. Rainfall averages 166mm, so some wet days are possible.
Monthly averages
Temp
34°C
Rain
166mm
Sun
6.7h
Weather score
50
Mixed
Hot
Average highs reach 34°C, so days can feel very hot.
Showers
Rainfall averages 166mm, so some wet days are possible.
Some sun
Sunshine averages 6.7h per day, enough for a balanced month.
Map
Compare Phnom Penh, Cambodia with nearby places by weather score, rain, sun, temperature, and swim conditions.
May34°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMarch to May
This stretch sets the upper range for average daytime heat.
May166mm average rain
May sits near Phnom Penh's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
May6.7 hours average sun
May sits close to Phnom Penh's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to April and December
This stretch has the strongest sunshine in the monthly averages.
May50 weather score
May scores below Phnom Penh's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to February and December
These months have the strongest weather score in the monthly averages.