Climate averages 1991–2020
Khlong Luang weather
by month.
See how the year changes. April has the highest average daily maximum; December has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Khlong Luang averages a daytime high of 32.3°C and a nighttime low of 24.2°C, with about 1,426 mm of rain on roughly 186 days. April is the warmest month (average high 35.2°C) and October the coolest (30.7°C). September is the wettest month with 284 mm; December is the driest with 8.8 mm.
The annual picture
A year in Khlong Luang
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Khlong Luang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.4°C21.4°C | 21.4°C | 15 | 3.5 | 11.411 h |
| February | 32.8°C22.9°C | 22.9°C | 16 | 3.7 | 11.712 h |
| March | 34.3°C24.9°C | 24.9°C | 56 | 8.5 | 12.012 h |
| April | 35.2°C26.2°C | 26.2°C | 91 | 14.7 | 12.412 h |
| May | 33.7°C26.1°C | 26.1°C | 185 | 24.2 | 12.813 h |
| June | 32.5°C25.7°C | 25.7°C | 179 | 24.8 | 12.913 h |
| July | 31.9°C25.3°C | 25.3°C | 185 | 25.9 | 12.913 h |
| August | 31.6°C25.1°C | 25.1°C | 204 | 26.1 | 12.613 h |
| September | 31.2°C24.7°C | 24.7°C | 284 | 26.9 | 12.212 h |
| October | 30.7°C23.9°C | 23.9°C | 167 | 19.6 | 11.812 h |
| November | 31.2°C22.9°C | 22.9°C | 33 | 5.8 | 11.511 h |
| December | 30.9°C21.6°C | 21.6°C | 8.8 | 2.0 | 11.311 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- Sai MaiThailand · 16 kmHigh 32.0°C · Low 24.3°C · 1,426 mm rain a year
- Khlong Sam WaThailand · 24 kmHigh 31.9°C · Low 24.2°C · 1,260 mm rain a year
- Mueang NonthaburiThailand · 27 kmHigh 32.3°C · Low 24.4°C · 1,152 mm rain a year
- ChatuchakThailand · 28 kmHigh 31.8°C · Low 24.4°C · 1,152 mm rain a year
- Bueng KumThailand · 31 kmHigh 31.8°C · Low 24.4°C · 1,260 mm rain a year
- Nong ChokThailand · 33 kmHigh 32.0°C · Low 23.9°C · 1,260 mm rain a year
- WatthanaThailand · 38 kmHigh 31.6°C · Low 24.7°C · 1,152 mm rain a year
- BangkokThailand · 38 kmHigh 31.9°C · Low 24.5°C · 1,152 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC+7, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 14.10°, 100.60° (6 km from the city centre). Rain comes from the 0.25° cell at 14.00°, 100.75°. Sai Mai lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.