January 31° · ☂ 11 ★ February32° · ☂ 6 March 32° · ☂ 10 April 32° · ☂ 12 May 32° · ☂ 13 June 32° · ☂ 12 July 32° · ☂ 10 August 31° · ☂ 12 September 32° · ☂ 10 October 32° · ☂ 12 November 31° · ☂ 16 December 31° · ☂ 17 Singapore in May:very hot, rain on many days Singapore · Records from 2006 to 2025. Not a forecast.
Mean high 32° Hottest day 35.2° (2020)
Mean low 26° Coldest night 24.1° (2011)
Rain days 13 days 6-19 by year
Rainfall 189mm Daylight 12.2 → 12.2 h
Singapore's 12 months i Best: February
1 2 3 4 5 6 7 8 9 10 11 12
Trip types Beach Finewarm sea and frequent rain Sightseeing on foot Poorhot, frequent rain and muggy
Humidity 86% 31 muggy days
Clear days 0 days 20 overcast days
Mean wind 7 km/h Rarely windy
Sea temperature 30.5° 30.1-30.8° by year (last 6)
Sunrise / sunset (15th) 06:55 / 19:06 Daylight 12.2 → 12.2 h
Singapore in May The inter-monsoon period continues, hot and thundery. Sumatra squalls can pass through from pre-dawn into the morning. Vesak Day, the Buddha's birthday, falls in May and follows the lunar calendar. A light rain jacket can be handier than an umbrella.
It was a hot month: 32°C by day and 26°C after dark. Rain fell on 13 days of the month on average. It varied a lot from year to year. May 2008 had 6 rain days; 2016 had 19.
Highs topped 30°C on 31 days of the month on average. Mixing in indoor stops at midday made sense. Each rainy day brought about 15 mm, closer to downpours than drizzle.
Date by date i Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
May 1 Saturday 1 rain in 11 of 20 yrs 11/20 32° 26° May 1 rain on 55% of days 32° 26°
May 2 Sunday 2 rain in 8 of 20 yrs 8/20 32° 26° May 3 Monday 3 rain in 8 of 20 yrs 8/20 33° 26° May 4 Tuesday 4 rain in 9 of 20 yrs 9/20 32° 26° May 5 Wednesday 5 rain in 10 of 20 yrs 10/20 32° 26° May 6 Thursday 6 rain in 10 of 20 yrs 10/20 33° 26° May 7 Friday 7 rain in 8 of 20 yrs 8/20 33° 26° May 8 Saturday 8 rain in 6 of 20 yrs 6/20 32° 26° 2-8 rain on 42% of days 32° 26°
May 9 Sunday 9 rain in 7 of 20 yrs 7/20 32° 26° May 10 Monday 10 rain in 5 of 20 yrs 5/20 33° 26° May 11 Tuesday 11 rain in 5 of 20 yrs 5/20 33° 26° May 12 Wednesday 12 rain in 12 of 20 yrs 12/20 32° 26° May 13 Thursday 13 rain in 6 of 20 yrs 6/20 32° 26° May 14 Friday 14 rain in 10 of 20 yrs 10/20 32° 26° May 15 Saturday 15 rain in 6 of 20 yrs 6/20 32° 26° 9-15 rain on 36% of days 32° 26°
May 16 Sunday 16 rain in 8 of 20 yrs 8/20 32° 26° May 17 Monday 17 rain in 9 of 20 yrs 9/20 32° 26° May 18 Tuesday 18 rain in 10 of 20 yrs 10/20 32° 26° May 19 Wednesday 19 rain in 7 of 20 yrs 7/20 32° 26° May 20 Thursday 20 rain in 12 of 20 yrs 12/20 32° 26° May 21 Friday 21 rain in 7 of 20 yrs 7/20 32° 26° May 22 Saturday 22 rain in 10 of 20 yrs 10/20 32° 26° 16-22 rain on 45% of days 32° 26°
May 23 Sunday 23 rain in 7 of 20 yrs 7/20 32° 26° May 24 Monday 24 rain in 6 of 20 yrs 6/20 33° 26° May 25 Tuesday 25 rain in 3 of 20 yrs 3/20 33° 26° May 26 Wednesday 26 rain in 10 of 20 yrs 10/20 32° 26° May 27 Thursday 27 rain in 9 of 20 yrs 9/20 32° 26° May 28 Friday 28 rain in 6 of 20 yrs 6/20 32° 26° May 29 Saturday 29 rain in 10 of 20 yrs 10/20 32° 26° 23-29 rain on 36% of days 32° 26°
May 30 Sunday 30 rain in 10 of 20 yrs 10/20 32° 26° May 31 Monday 31 rain in 6 of 20 yrs 6/20 32° 26°
30-31 rain on 40% of days 32° 26°
May 1 rain on 55% of days 32° 26° 2-8 rain on 42% of days 32° 26° 9-15 rain on 36% of days 32° 26° 16-22 rain on 45% of days 32° 26° 23-29 rain on 36% of days 32° 26° 30-31 rain on 40% of days 32° 26°
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Week
May 1 Monday 1 rain in 11 of 20 yrs 11/20 32° 26° May 2 Tuesday 2 rain in 8 of 20 yrs 8/20 32° 26° May 3 Wednesday 3 rain in 8 of 20 yrs 8/20 33° 26° May 4 Thursday 4 rain in 9 of 20 yrs 9/20 32° 26° May 5 Friday 5 rain in 10 of 20 yrs 10/20 32° 26° May 6 Saturday 6 rain in 10 of 20 yrs 10/20 33° 26° 1-6 rain on 47% of days 32° 26°
May 7 Sunday 7 rain in 8 of 20 yrs 8/20 33° 26° May 8 Monday 8 rain in 6 of 20 yrs 6/20 32° 26° May 9 Tuesday 9 rain in 7 of 20 yrs 7/20 32° 26° May 10 Wednesday 10 rain in 5 of 20 yrs 5/20 33° 26° May 11 Thursday 11 rain in 5 of 20 yrs 5/20 33° 26° May 12 Friday 12 rain in 12 of 20 yrs 12/20 32° 26° May 13 Saturday 13 rain in 6 of 20 yrs 6/20 32° 26° 7-13 rain on 35% of days 32° 26°
May 14 Sunday 14 rain in 10 of 20 yrs 10/20 32° 26° May 15 Monday 15 rain in 6 of 20 yrs 6/20 32° 26° May 16 Tuesday 16 rain in 8 of 20 yrs 8/20 32° 26° May 17 Wednesday 17 rain in 9 of 20 yrs 9/20 32° 26° May 18 Thursday 18 rain in 10 of 20 yrs 10/20 32° 26° May 19 Friday 19 rain in 7 of 20 yrs 7/20 32° 26° May 20 Saturday 20 rain in 12 of 20 yrs 12/20 32° 26° 14-20 rain on 44% of days 32° 26°
May 21 Sunday 21 rain in 7 of 20 yrs 7/20 32° 26° May 22 Monday 22 rain in 10 of 20 yrs 10/20 32° 26° May 23 Tuesday 23 rain in 7 of 20 yrs 7/20 32° 26° May 24 Wednesday 24 rain in 6 of 20 yrs 6/20 33° 26° May 25 Thursday 25 rain in 3 of 20 yrs 3/20 33° 26° May 26 Friday 26 rain in 10 of 20 yrs 10/20 32° 26° May 27 Saturday 27 rain in 9 of 20 yrs 9/20 32° 26° 21-27 rain on 37% of days 32° 26°
May 28 Sunday 28 rain in 6 of 20 yrs 6/20 32° 26° May 29 Monday 29 rain in 10 of 20 yrs 10/20 32° 26° May 30 Tuesday 30 rain in 10 of 20 yrs 10/20 32° 26° May 31 Wednesday 31 rain in 6 of 20 yrs 6/20 32° 26°
28-31 rain on 40% of days 32° 26°
1-6 rain on 47% of days 32° 26° 7-13 rain on 35% of days 32° 26° 14-20 rain on 44% of days 32° 26° 21-27 rain on 37% of days 32° 26° 28-31 rain on 40% of days 32° 26°
Tap another date to change
2006 4mm
2007 5mm
2008 none
2009 none
2010 none
2011 6mm
2012 10mm
2013 none
2014 11mm
2015 1mm
2016 21mm
2017 8mm
2018 1mm
2019 none
2020 9mm
2021 14mm
2022 none
2023 none
2024 6mm
2025 none
Holidays in May (2027) May 1 Labour DayMay 15 to May 17 Hari Raya Haji long weekendMay 20 Vesak DayMay 31 Memorial Day 1 Local public holiday or break (busier, pricier)1 US holidays (flights fill up)
Your trip dates, the past 20 years Trip dates May 1 (Sat) 2 (Sun) 3 (Mon) 4 (Tue) 5 (Wed) 6 (Thu) 7 (Fri) 8 (Sat) 9 (Sun) 10 (Mon) 11 (Tue) 12 (Wed) 13 (Thu) 14 (Fri) 15 (Sat) 16 (Sun) 17 (Mon) 18 (Tue) 19 (Wed) 20 (Thu) 21 (Fri) 22 (Sat) 23 (Sun) 24 (Mon) 25 (Tue) 26 (Wed) 27 (Thu) 28 (Fri) 29 (Sat) 30 (Sun) 31 (Mon) ~ May 1 (Sat) 2 (Sun) 3 (Mon) 4 (Tue) 5 (Wed) 6 (Thu) 7 (Fri) 8 (Sat) 9 (Sun) 10 (Mon) 11 (Tue) 12 (Wed) 13 (Thu) 14 (Fri) 15 (Sat) 16 (Sun) 17 (Mon) 18 (Tue) 19 (Wed) 20 (Thu) 21 (Fri) 22 (Sat) 23 (Sun) 24 (Mon) 25 (Tue) 26 (Wed) 27 (Thu) 28 (Fri) 29 (Sat) 30 (Sun) 31 (Mon) 1-7 8-14 15-21 22-end Whole month
You can also click two dates on the axis. Hover a cell to see that day's rain. By year Driest trips first
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Trip rain days Month rain days Tap a date to start, tap another to end. Each cell is that date in one year. '06 '07 '08 '09 '10 '11 '12 '13 '14 '15 '16 '17 '18 '19 '20 '21 '22 '23 '24 '25
of 20 Dates outside your trip are dimmed.
One row per year, one cell per day. 2008 had 6 rain days, 2016 had 19.
Singapore through the year Month High Low Rain days Rainfall Sea January 31° 24° 11 days 278mm 28° February Good 32° 25° 6 days 90mm 28° March 32° 25° 10 days 191mm 29° April 32° 25° 12 days 205mm 30° May 32° 26° 13 days 189mm 31° June 32° 26° 12 days 166mm 31° July 32° 26° 10 days 145mm 30° August 31° 25° 12 days 191mm 30° September 32° 25° 10 days 148mm 30° October 32° 25° 12 days 190mm 30° November 31° 25° 16 days 307mm 30° December 31° 24° 17 days 325mm 29°
What to pack At 32°C by day and 26°C at night with humid air, sweat hardly dried. Quick-dry fabrics beat heavy cotton, and a spare top saved the evening.
A packable rain jacket weighs almost nothing and covers 13 rain days. Leave the suede at home.
Common questions Does it rain a lot in Singapore in May? Over the past 20 years May averaged 13 rain days (1 mm or more) out of 31. Individual years ran from 6 in the driest to 19 in the wettest.
What should I wear in Singapore in May? Days averaged 32°C and nights 26°C. Pack an umbrella, sandals that can get wet, T-shirts, sunscreen plus a hat, a swimsuit, and insect repellent.
Can you swim in Singapore in May? Sea surface temperature averaged 30.5°C in May, warm enough to stay in for a long swim. Year to year it ranged 30.1-30.8°C. Check local flags for waves and jellyfish on the day.
Is May a good time to visit Singapore? On warmth and rain days alone, Singapore's easiest month was February. May ranked 11 of 12.
Is Singapore humid in May? Mean relative humidity was 86%, with about 31 muggy days (dew point of 20°C or more) in the month.
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