Weather in Singapore in March

A hard month. March is a hard month in Singapore, and worth planning around. You should expect rain on 20 days of the month, which is more days wet than dry.

Singapore barely has seasons. March scores 48 out of 100 against a best of 61 in February — a gap small enough that the month you choose matters far less here than the week you choose.

Rain on 20 of the month's 31 days, 6 of them heavy. At that frequency a wet-weather backup is not a contingency, it is the itinerary — book the indoor things first and treat the clear days as the bonus. Natural fibres and a second shirt for the day. At 84% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: 16 days top 30 °C — hot spells arrive, but they break; the day barely swings — 5.1 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest March day reached 32.9 °C and the coldest night fell to 22.5 °C, and the wettest single day dropped 85 mm — roughly 51% of the month's rain in one day.

March is moderately variable: 52 mm in the driest year against 297 mm in the wettest, around an average of 168 mm. Roughly two Marchs in three land near that average, and the third does something else entirely.

Wind is light at 7.1 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 84%, high enough to notice on the warm days without dominating them.

How March sits in the year

Temperatures hold steady either side: 29.2 °C in February, 29.9 here, 30.5 in April. Nothing about the timing within the month matters much. Rain is the thing that moves: April brings 5 days more of it, so the earlier half of a flexible trip is the safer half.

Daylight in March

Singapore sits close enough to the equator that daylight barely moves all year — 12.1 hours in March, against a range of just 0.2 hours across the whole calendar. Sunrise and sunset land at roughly the same time whenever you come.

Sea temperature

The sea sits at about 28.2 °C in March — warm enough that the water offers no relief from the heat. The sea peaks at 30.1 °C in May and bottoms out at 27.4 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Off season. The genuine off season: cheapest by a distance, with the caveat that some tours and restaurants close entirely.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

March in Singapore versus nearby

If Singapore is one option among several, the nearby comparison is worth making. Pekanbaru is close enough to be a coin toss — within a degree on temperature, 4 days more rain. Kuantan is close enough to be a coin toss — within a degree on temperature, 3 days less rain.

So: March works, with February the better month by 13 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Singapore

See all twelve months in Singapore, or where else to go in March.