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🇸🇬 Weather in Singapore in May
This is what the weather in Singapore was like in May over the years 2017–2026.
Key facts at a glance
Prevailing weather: Rain
Avg. daytime high
30.6 °C
29.9 °C – 31.0 °C
Avg. night-time low
26.7 °C
26.2 °C – 27.3 °C
Avg. rain days in period
29.5
95 % of days · ≥ 1.0 mm
Avg. precipitation in period
651 mm
163 mm – 3,509 mm
Avg. cloud cover
82 %
This data source has no sunshine hours – average cloud cover is shown instead.
Avg. sea temperature
30.5 °C
Sea temperature available for 2 of 10 years.
Extremes: Highest temperature 33.9 °C (21 May 2020) · Lowest temperature 25.1 °C (14 May 2025) · Avg. daily peak wind 11 km/h
Weather mix of all days
- 1Sunny
- 8Partly cloudy
- 6Cloudy
- 100Light rain
- 195Rain
Summary
- On average 30.6 °C during the day and 26.7 °C at night.
- On average 29.5 rain days (Rain day = at least 1.0 mm of precipitation) with 651 mm of precipitation in total.
- The sea averaged 30.5 °C.
- Prevailing weather: Rain.
- Warmest year: 2019 (avg. 31.0 °C), coolest: 2017 (avg. 29.9 °C).
- Wettest year: 2026 (3,509 mm), driest: 2018 (163 mm).
- Extremes: 33.9 °C on 21 May 2020 and 25.1 °C on 14 May 2025.
Overall values from all 10 years. How is this calculated?
Charts
Temperatures per year
Average over your travel period
Avg. daytime high: 2017 30°, 2018 31°, 2019 31°, 2020 31°, 2021 30°, 2022 30°, 2023 31°, 2024 31°, 2025 31°, 2026 31°. Avg. night-time low: 2017 26°, 2018 26°, 2019 27°, 2020 27°, 2021 26°, 2022 27°, 2023 27°, 2024 27°, 2025 27°, 2026 27°. Sea temperature: 2017 –, 2018 –, 2019 –, 2020 –, 2021 –, 2022 –, 2023 –, 2024 –, 2025 30°, 2026 31°.
Precipitation & rain days
Precipitation (mm): 2017 252, 2018 163, 2019 185, 2020 232, 2021 338, 2022 362, 2023 175, 2024 699, 2025 593, 2026 3,509.
Year by year
2026
Avg. max30.7°Avg. min26.9°- Rain days
- 31 Rain days
- Precipitation
- 3,509 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- 30.5 °C
Max 32.2 °C · Min 25.8 °C
2025
Avg. max30.7°Avg. min26.8°- Rain days
- 31 Rain days
- Precipitation
- 593 mm
- Avg. cloud cover
- 79 % cloudy
- Sea temperature
- 30.4 °C
Max 32.2 °C · Min 25.1 °C
2024
Avg. max31.0°Avg. min27.3°- Rain days
- 31 Rain days
- Precipitation
- 699 mm
- Avg. cloud cover
- 85 % cloudy
- Sea temperature
- –
Max 32.4 °C · Min 26.6 °C
2023
Avg. max30.9°Avg. min26.7°- Rain days
- 28 Rain days
- Precipitation
- 175 mm
- Avg. cloud cover
- 75 % cloudy
- Sea temperature
- –
Max 32.9 °C · Min 25.9 °C
2022
Avg. max30.1°Avg. min26.5°- Rain days
- 25 Rain days
- Precipitation
- 362 mm
- Avg. cloud cover
- 76 % cloudy
- Sea temperature
- –
Max 31.7 °C · Min 25.8 °C
2021
Avg. max30.3°Avg. min26.3°- Rain days
- 31 Rain days
- Precipitation
- 338 mm
- Avg. cloud cover
- 84 % cloudy
- Sea temperature
- –
Max 31.9 °C · Min 25.6 °C
2020
Avg. max30.8°Avg. min26.8°- Rain days
- 30 Rain days
- Precipitation
- 232 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 33.9 °C · Min 25.7 °C
2019
Avg. max31.0°Avg. min26.7°- Rain days
- 30 Rain days
- Precipitation
- 185 mm
- Avg. cloud cover
- 83 % cloudy
- Sea temperature
- –
Max 32.4 °C · Min 26.0 °C
2018
Avg. max30.9°Avg. min26.2°- Rain days
- 28 Rain days
- Precipitation
- 163 mm
- Avg. cloud cover
- 81 % cloudy
- Sea temperature
- –
Max 32.4 °C · Min 25.4 °C
2017
Avg. max29.9°Avg. min26.4°- Rain days
- 30 Rain days
- Precipitation
- 252 mm
- Avg. cloud cover
- 87 % cloudy
- Sea temperature
- –
Max 31.0 °C · Min 25.4 °C
Frequently asked questions
- How warm is it in Singapore in May?
- Daytime highs averaged 30.6 °C, night-time lows 26.7 °C. The highest value of the past 10 years was 33.9 °C (21 May 2020), the lowest 25.1 °C (14 May 2025).
- How often does it rain in Singapore in May?
- On average there were 29.5 rain days (at least 1 mm) with 651 mm of precipitation in total.
- How warm is the sea in Singapore in May?
- The sea temperature averaged 30.5 °C (open-sea point approx. 6 km from the town).
Check your exact travel dates
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Other destinations in May
Data sources
- Weather data
- Data obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program
Reanalysis (weather model constrained by observations) on a coarse grid of about 50 km. Values represent a large area and can differ from local conditions, especially on islands, coasts and in mountains. Snow depth is the model value for the grid cell, not the depth on the slopes. No sunshine duration.
Reanalysis (weather model constrained by observations)
Reanalysis values represent a grid cell (approx. 25–50 km) and may differ from local measurements on coasts, islands and in mountains. - Sea temperature
- MUR SST data were provided by JPL under support by NASA MEaSUREs program; accessed via NOAA CoastWatch ERDDAP
Daily multi-scale ultra-high resolution (≈ 1 km) analysis of satellite measurements (infrared, microwave) and in-situ data. Represents the foundation temperature below the daily warm surface layer. (Satellite and in-situ analysis) - Sea measuring point approx. 6 km from the location (1.240, 103.830)
- Place search
- Natural Earth (public domain) · GeoNames (CC BY 4.0) / OpenStreetMap (ODbL)