Singapore Weather History
Historical climate data, records & trends
All-Time Singapore Weather Records
37.0°C
Highest temperature
Tengah — 17 Apr 1983
19.4°C
Lowest temperature
Paya Lebar — 1934
512mm
Highest 24-hr rainfall
19 Dec 2006
23.4°C
Coolest month avg
January
Singapore Annual Climate Averages
Temperature
- Daily mean27.5–28.0°C
- Daily high (avg)31–32°C
- Daily low (avg)24–25°C
- Hottest monthMay
- Coolest monthJanuary
Rainfall
- Annual total~2,340 mm
- Rainy days per year~178
- Wettest monthNovember / December
- Driest monthFebruary
- Relative humidity (avg)84%
Notable Past Weather Events
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December 2006 — Record rainfall
A monsoon surge brought 512mm of rain in 24 hours, the highest 24-hour total on record for Singapore, causing widespread flooding.
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June 2013 — Worst haze episode
The 24-hour PSI hit 401 (Hazardous) on 21 June 2013 — the worst haze reading on record — forcing schools to close and disrupting flights.
-
October 2015 — Severe haze
Strong El Niño conditions exacerbated regional fires; PSI crossed into the Hazardous range repeatedly through September and October.
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September 2019 — Haze returns
The 24-hour PSI reached 164 (Unhealthy) on 14 September, the highest in 4 years, as fires burned across Sumatra and Kalimantan.
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April 1983 — Hottest day
A temperature of 37.0°C was recorded at Tengah on 17 April 1983 — still Singapore’s all-time high.
Long-Term Climate Trends
Singapore’s climate is warming in line with global trends. The Meteorological Service Singapore reports a long-term warming trend of around +0.2°C per decade since the 1940s, with more frequent very hot days and fewer very cool nights. Annual rainfall has not shown a clear trend, but extreme rainfall events have become more intense.
Warming
Mean temperature rose from ~26.9°C (1948) to ~28.0°C (recent).
Heavier rain
Intensity of extreme rainfall events has increased since 1980.
Where to Find More Historical Data
Related Information
Singapore weather history & records
The Meteorological Service Singapore (MSS) maintains the official national archive of weather observations going back more than a century, with continuous daily records at some stations since the late 1800s. This makes Singapore weather history one of the best-documented in Southeast Asia.
What historical weather data is available?
MSS publishes historical daily records for temperature, rainfall, humidity and wind for many stations across Singapore. Monthly and annual summaries, climate averages and climate of Singapore information are also published. Businesses such as construction, shipping and insurance frequently purchase detailed historical data for planning and risk assessment.
Long-term climate trends
Singapore has warmed by roughly 1.1°C since the 1940s, mirroring the global trend. The frequency of very hot days (above 34°C) has increased, while very cool nights (below 22°C) have become less common. Annual rainfall shows no clear long-term trend, but the intensity of extreme rainfall events has increased — a pattern consistent with a warmer atmosphere holding more moisture.
NEA Weather SG republishes summaries based on publicly available information from NEA and the Meteorological Service Singapore. We are not affiliated with NEA.