Rainy Season in Singapore: Month by Month

Quick answer: Singapore has no dry season — even its driest month, February, gets 173 mm (6.8 in) — but it does have a wetter part of the year: Mar, Oct–Jan, with December the wettest at 395 mm (15.6 in).

Pick a destination to see its weather month by month and the best time to go, or pick a month to see where the weather is at its best.

Start from

Best = an ideal daily high for the kind of trip and rain on 10 days or fewer; the rule is under the tool.

Tokyo · a city trip

Good: Mar–May, Oct–DecNo month is ideal for a city trip by our rule, but these come close.

Warmest
Aug · 89°F
Coolest
Jan · 49°F
Wettest
Jul · 16 rain days
  • Averages for 2006–2025: any single year can be hotter, colder or wetter.

Weather from NASA POWER daily data, 2006–2025, for the ~50 km area around each place. Right on the coast, afternoons can be a few degrees warmer than shown.

MonthHigh / low (°F)Rain daysRain (in)Verdict
Jan49° / 34°52.4Off (too cold)
Feb51° / 35°73.1Off (too cold)
Mar57° / 40°125.1Good (cool, showery)
Apr65° / 48°126Good (showery)
May73° / 58°136.6Good (showery)
Jun79° / 65°168.1Off (too wet)
Jul86° / 73°166.5Off (too wet)
Aug89° / 75°155.4Off (too hot)
Sep82° / 70°168.7Off (too wet)
Oct72° / 59°148.9Good (showery)
Nov63° / 48°114.4Good (showery)
Dec54° / 39°73.2Good (cool)

The tool above opens on Singapore: change the place or the month to yours. Below, Singapore month by month — rain, rain days and how warm it is.

Singapore month by month

Average rainfall and the number of days with at least 1 mm of rain, 2006–2025. On this page a month counts as wet when it gets more rain than an average month in that place (more than a twelfth of its year), and dry when it gets less than half an average month. The months in between are the shoulder.

MonthRainRain daysAverage high
January298 mm (11.7 in)2183°F / 28°CWet
February173 mm (6.8 in)1485°F / 29°CShoulder
March264 mm (10.4 in)2286°F / 30°CWet
April224 mm (8.8 in)2687°F / 31°CShoulder
May256 mm (10.1 in)2787°F / 30°CShoulder
June227 mm (8.9 in)2486°F / 30°CShoulder
July230 mm (9.1 in)2485°F / 29°CShoulder
August234 mm (9.2 in)2585°F / 29°CShoulder
September224 mm (8.8 in)2385°F / 30°CShoulder
October274 mm (10.8 in)2686°F / 30°CWet
November327 mm (12.9 in)2885°F / 29°CWet
December395 mm (15.6 in)2783°F / 29°CWet

Singapore is wet in Mar, Oct–Jan and shoulder in Feb, Apr–Sep. In this record February sits inside Singapore’s wet run and is 38% drier than the months either side of it.

The wettest stretch runs from November into January, then February falls away sharply before March picks up again, which makes February the month to aim for on rain alone. It still rains on 14 rain days in February: rain is part of every month here.

The wettest and driest months

Singapore: wettest in December (395 mm (15.6 in), 27 rain days), driest in February (173 mm (6.8 in), 14 rain days). Over the year, Singapore gets 3126 mm (123.1 in).

The best months to go

Singapore: Feb. When to Go rates every month on temperature, rain days and storms — open Singapore in the tool above and step through the year.

Plan it

FAQ

When is the rainy season in Singapore?

Mar, Oct–Jan — the months that get more rain than an average month in Singapore. December is the wettest, at 395 mm (15.6 in) across 27 rain days, against 173 mm (6.8 in) in February (NASA POWER, 2006–2025).

Does it rain all day in the rainy season in Singapore?

The measure here is a day with at least 1 mm of rain, not a day of rain. In December, Singapore averages 27 rain days out of 31, with an average high of 83°F / 29°C, and February in the middle of the season is drier than the months either side of it.

What is the driest month in Singapore?

February, at 173 mm (6.8 in) across 14 rain days. No month here drops below half an average month, so the year has a wetter half rather than a dry season.

When is the best time to visit Singapore?

When to Go rates Feb the best of the year here for Singapore, on temperature, rain days and — where it applies — storms. Change the place in the tool above for anywhere else on the same map.

What is the rainiest month in Singapore?

December, at 395 mm (15.6 in) across 27 rain days. February is the driest, at 173 mm (6.8 in).

How these numbers are made

Daily rainfall and temperature from NASA POWER (MERRA-2), averaged over 2006–2025; a rain day is a day with at least 1 mm. POWER works on a grid of about 50 km, so each place here is its neighbourhood rather than its own rain gauge: a coast, a small island or a valley under a mountain can differ from the square it sits in. The months are the part that holds; treat a single millimetre figure as an average, not a forecast.

As an Amazon Associate I earn from qualifying purchases.