Singapore
Singapore in May: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Singapore in May is climatically mixed. The average daily high is around 30 °C, and the sea is about 30 °C. With about 25 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
48/100 · #12
Warmth
#2
Dryness
#10
Sun
#4
Sea warmth
#1
Published best categories: none
Singapore · MayPhoto: Dietmar Rabich · CC BY-SA 4.0Climate facts
- Average high
- 30 °C
- Average low
- 26 °C
- Sea
- 30 °C
- Rainy days (est.)
- 25 rainy days (est.)
- Sun (est.)
- 6 h/day
- Humidity
- 83 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| April | 30 | 26 | 25 | 205 | 6.3 | 83 | 1.5 | 30 | 49 |
| May (selected) | 30 | 26 | 25 | 220 | 5.9 | 83 | 1.6 | 30 | 48 |
| June | 30 | 26 | 22 | 187 | 5.6 | 84 | 1.9 | 30 | 51 |
How do the previous and next months compare?
Baseline: May (48/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| April | +1 | +0.1 °C | -0.5 °C | -0.8 | -15.3 mm | +0.4 h | -0.7 % | -0.1 m/s | -0.5 °C |
| June | +3 | -0.6 °C | -0.3 °C | -3 | -33.8 mm | -0.3 h | +0.8 % | +0.3 m/s | -0.1 °C |
All twelve months in context

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Useful next decisions
Frequently asked questions
How warm is Singapore in May?
The average daily high is around 30 °C, with an average daily low of about 26 °C.
Can you swim in Singapore in May?
The sea is about 30 °C (very warm).
Does it rain a lot in Singapore in May?
The curated estimate is about 25 rainy days per month, not a directly measured long-term average. Total precipitation averages around 220 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Singapore?
By the climate score, January and February are the strongest months for Singapore. For a beach trip: January, February, March and December. May is not among them.