Climate averages 1991–2020
Ban Mai weather
by month.
See how the year changes. June (tied with August) has the highest average daily maximum; February has the lowest average monthly rainfall.
Pleasant-weather months by our simple rule: February
Long-term climate patterns, not a forecast for a particular trip.
Across the year Ban Mai averages a daytime high of 29.4°C and a nighttime low of 25.5°C, with about 1,876 mm of rain on roughly 224 days. June (tied with August) is the warmest month (average high 30.8°C) and December the coolest (27.3°C). November is the wettest month with 403 mm; February is the driest with 48 mm.
Months with pleasant weather by a simple rule (average high between 18°C and 29°C, average low of at least 5°C and at most 8 rain days): February. This looks at temperature and rain only, not humidity, wind, sea temperature or crowds.
The annual picture
A year in Ban Mai
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
Ban Mai climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.6°C24.7°C | 24.7°C | 104 | 14.1 | 11.812 h |
| February | 28.3°C25.0°C | 25.0°C | 48 | 7.8 | 11.912 h |
| March | 29.3°C25.4°C | 25.4°C | 89 | 12.1 | 12.112 h |
| April | 30.2°C26.0°C | 26.0°C | 112 | 17.2 | 12.312 h |
| May | 30.7°C26.3°C | 26.3°C | 120 | 21.7 | 12.412 h |
| June | 30.8°C26.2°C | 26.2°C | 95 | 17.7 | 12.513 h |
| July | 30.7°C25.9°C | 25.9°C | 86 | 17.2 | 12.512 h |
| August | 30.8°C25.8°C | 25.8°C | 86 | 17.3 | 12.412 h |
| September | 30.1°C25.5°C | 25.5°C | 123 | 21.6 | 12.212 h |
| October | 28.7°C25.1°C | 25.1°C | 270 | 27.5 | 12.012 h |
| November | 27.7°C24.8°C | 24.8°C | 403 | 27.0 | 11.812 h |
| December | 27.3°C24.8°C | 24.8°C | 338 | 22.4 | 11.712 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
- Hat YaiThailand · 23 kmHigh 30.2°C · Low 24.2°C · 1,934 mm rain a year
- YalaThailand · 110 kmHigh 31.0°C · Low 23.0°C · 1,787 mm rain a year
- Alor SetarMalaysia · 122 kmHigh 30.5°C · Low 24.3°C · 2,229 mm rain a year
- PendangMalaysia · 135 kmHigh 30.5°C · Low 23.8°C · 2,306 mm rain a year
- Nakhon Si ThammaratThailand · 151 kmHigh 29.7°C · Low 23.7°C · 1,884 mm rain a year
- Sungai PetaniMalaysia · 173 kmHigh 30.0°C · Low 24.1°C · 2,237 mm rain a year
- Kota Kuala MudaMalaysia · 181 kmHigh 30.1°C · Low 24.6°C · 2,372 mm rain a year
- Tasek GlugorMalaysia · 192 kmHigh 29.8°C · Low 23.9°C · 2,359 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 7.30°, 100.50° (12 km from the city centre), adjusted down by 0.1°C for the difference between the city's elevation (6 m) and the cell's (-5 m). Rain comes from the 0.25° cell at 7.25°, 100.50°. 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.