Climate averages 1991–2020
Khlong Luang weather
in May.
A hot, very wet month: the 3rd warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a hot month in Khlong Luang: daytime highs average 33.7°C and nights cool to about 26.1°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 185 mm of rain on roughly 24 days, which makes May a very wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 46 min on an average May day.
The nearest other city in this atlas is Sai Mai (16 km away). In May its highs average 33.4°C, about as warm as Khlong Luang, with 185 mm of rain.
Among the 46 cities listed in Thailand, Khlong Luang ranks joint 5th of 46 for the warmest May highs and joint 38th of 46 for the driest May (rainfall, lowest first). The mean May high of those 46 cities is 32.7°C; Khlong Luang is 1.0°C warmer than that mean.
From May to June, average highs fall by 1.2°C to 32.5°C, and monthly rainfall falls from 185 mm to 179 mm.
The annual picture
May in context
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, selected | 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
May in nearby cities
- Sai Mai in MayThailand · 16 kmHigh 33.4°C · Low 26.2°C · 185 mm rain
- Khlong Sam Wa in MayThailand · 24 kmHigh 33.2°C · Low 26.1°C · 150 mm rain
- Mueang Nonthaburi in MayThailand · 27 kmHigh 33.7°C · Low 26.3°C · 130 mm rain
- Chatuchak in MayThailand · 28 kmHigh 33.2°C · Low 26.4°C · 130 mm rain
- Bueng Kum in MayThailand · 31 kmHigh 33.1°C · Low 26.4°C · 150 mm rain
- Nong Chok in MayThailand · 33 kmHigh 33.2°C · Low 25.8°C · 150 mm rain
- Watthana in MayThailand · 38 kmHigh 33.0°C · Low 26.6°C · 130 mm rain
- Bangkok in MayThailand · 38 kmHigh 33.4°C · Low 26.5°C · 130 mm rain
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 limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Khlong Luang) is explained once on the Khlong Luang year overview and on the Sources, method and limits page.
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.