Average Weather in Singapore Singapore
The climate in Singapore is hot, oppressive, and overcast. Over the course of the year, the temperature typically varies from 75°F to 89°F and is rarely below 73°F or above 92°F.
Average High and Low Temperature
The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature
In Singapore, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year.
The clearer part of the year in Singapore begins around January 9 and lasts for 3.2 months, ending around April 16. On March 4, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 24% of the time, and overcast or mostly cloudy 76% of the time.
The cloudier part of the year begins around April 16 and lasts for 8.8 months, ending around January 9. On December 4, the cloudiest day of the year, the sky is overcast or mostly cloudy 91% of the time, and clear, mostly clear, or partly cloudy 9% of the time.
Cloud Cover Categories
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Singapore varies significantly throughout the year.
The wetter season lasts 9.1 months, from March 28 to January 1, with a greater than 43% chance of a given day being a wet day. The chance of a wet day peaks at 62% on November 12.
The drier season lasts 2.9 months, from January 1 to March 28. The smallest chance of a wet day is 25% on February 10.
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 62% on November 12.
Daily Chance of Precipitation
To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Singapore experiences extreme seasonal variation in monthly rainfall.
Rain falls throughout the year in Singapore. The most rain falls during the 31 days centered around December 5, with an average total accumulation of 9.8 inches.
The least rain falls around February 19, with an average total accumulation of 4.3 inches.
Average Monthly Rainfall
The length of the day in Singapore does not vary substantially over the course of the year, staying within 11 minutes of 12 hours throughout. In 2017, the shortest day is December 22, with 12 hours, 3 minutes of daylight; the longest day is June 21, with 12 hours, 12 minutes of daylight.
Hours of Daylight and Twilight
The earliest sunrise is at 6:46 AM on November 1, and the latest sunrise is 31 minutes later at 7:16 AM on February 9. The earliest sunset is at 6:50 PM on November 5, and the latest sunset is 31 minutes later at 7:20 PM on February 13.
Daylight saving time (DST) is not observed in Singapore during 2017.
Sunrise & Sunset with Twilight
We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.
The perceived humidity level in Singapore, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, remaining a virtually constant 100% throughout.
Humidity Comfort Levels
This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.
The average hourly wind speed in Singapore experiences mild seasonal variation over the course of the year.
The windier part of the year lasts for 3.2 months, from December 5 to March 10, with average wind speeds of more than 4.2 miles per hour. The windiest day of the year is January 22, with an average hourly wind speed of 5.7 miles per hour.
The calmer time of year lasts for 8.8 months, from March 10 to December 5. The calmest day of the year is April 25, with an average hourly wind speed of 2.8 miles per hour.
Average Wind Speed
The predominant average hourly wind direction in Singapore varies throughout the year.
The wind is most often from the east for 1.1 months, from March 30 to May 1 and for 2.0 weeks, from October 19 to November 2, with a peak percentage of 45% on April 15. The wind is most often from the south for 5.6 months, from May 1 to October 19, with a peak percentage of 88% on August 6. The wind is most often from the north for 4.9 months, from November 2 to March 30, with a peak percentage of 92% on January 1.
Singapore is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average water temperature experiences some seasonal variation over the course of the year.
The time of year with warmer water lasts for 3.0 months, from April 12 to July 12, with an average temperature above 85°F. The day of the year with the warmest water is May 18, with an average temperature of 86°F.
The time of year with cooler water lasts for 2.1 months, from December 23 to February 26, with an average temperature below 82°F. The day of the year with the coolest water is January 23, with an average temperature of 82°F.
Average Water Temperature
This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
The average daily incident shortwave solar energy experiences some seasonal variation over the course of the year.
The brighter period of the year lasts for 1.8 months, from January 25 to March 19, with an average daily incident shortwave energy per square meter above 5.0 kWh. The brightest day of the year is February 20, with an average of 5.3 kWh.
The darker period of the year lasts for 1.8 months, from November 1 to December 25, with an average daily incident shortwave energy per square meter below 4.0 kWh. The darkest day of the year is December 4, with an average of 3.6 kWh.
Average Daily Incident Shortwave Solar Energy
For the purposes of this report, the geographical coordinates of Singapore are 1.290 deg latitude, 103.850 deg longitude, and 39 ft elevation.
The topography within 2 miles of Singapore contains significant variations in elevation, with a maximum elevation change of 495 feet and an average elevation above sea level of 51 feet. Within 10 miles also contains significant variations in elevation (725 feet). Within 50 miles contains significant variations in elevation (2,254 feet).
The area within 2 miles of Singapore is covered by artificial surfaces (85%) and water (12%), within 10 miles by water (60%) and artificial surfaces (29%), and within 50 miles by water (60%) and trees (17%).
This report illustrates the typical weather in Singapore, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Singapore.
For each station, the records are corrected for the elevation difference between that station and Singapore according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Singapore is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Singapore and a given station.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.