Climate averages 1991–2020
Ban Samae Dam weather
in January.
A hot, fairly dry month: the joint 9th warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
January is a hot month in Ban Samae Dam: daytime highs average 30.4°C and nights cool to about 22.6°C. By daytime temperature it is the joint 9th warmest of the 12 months.
Expect about 15 mm of rain on roughly 3 days, which makes January a fairly dry month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 25 min on an average January day.
The nearest other city in this atlas is Bang Khae (12 km away). In January its highs average 31.0°C, 0.6°C warmer than Ban Samae Dam, with 15 mm of rain.
Among the 46 cities listed in Thailand, Ban Samae Dam ranks joint 26th of 46 for the warmest January highs and joint 12th of 46 for the driest January (rainfall, lowest first). The mean January high of those 46 cities is 30.2°C; Ban Samae Dam is 0.2°C warmer than that mean.
From January to February, average highs rise by 1.1°C to 31.5°C, and monthly rainfall falls from 15 mm to 12 mm.
The annual picture
January 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
Ban Samae Dam climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January, selected | 30.4°C22.6°C | 22.6°C | 15 | 3.0 | 11.411 h |
| February | 31.5°C24.3°C | 24.3°C | 12 | 2.6 | 11.712 h |
| March | 32.7°C26.1°C | 26.1°C | 38 | 5.9 | 12.012 h |
| April | 33.8°C27.3°C | 27.3°C | 67 | 9.7 | 12.412 h |
| May | 32.8°C27.1°C | 27.1°C | 124 | 18.2 | 12.713 h |
| June | 31.9°C26.6°C | 26.6°C | 100 | 20.0 | 12.913 h |
| July | 31.3°C26.2°C | 26.2°C | 107 | 20.9 | 12.813 h |
| August | 31.0°C26.0°C | 26.0°C | 114 | 21.6 | 12.613 h |
| September | 30.5°C25.5°C | 25.5°C | 212 | 24.4 | 12.212 h |
| October | 30.1°C24.7°C | 24.7°C | 208 | 21.0 | 11.812 h |
| November | 30.4°C23.8°C | 23.8°C | 43 | 6.2 | 11.512 h |
| December | 30.1°C22.4°C | 22.4°C | 9.5 | 1.7 | 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
January in nearby cities
- Bang Khae in JanuaryThailand · 12 kmHigh 31.0°C · Low 22.2°C · 15 mm rain
- Nong Khaem in JanuaryThailand · 14 kmHigh 31.0°C · Low 22.1°C · 15 mm rain
- Thung Khru in JanuaryThailand · 14 kmHigh 30.4°C · Low 22.5°C · 15 mm rain
- Phra Pradaeng in JanuaryThailand · 18 kmHigh 30.8°C · Low 22.1°C · 15 mm rain
- Thawi Watthana in JanuaryThailand · 22 kmHigh 31.2°C · Low 21.9°C · 15 mm rain
- Bangkok in JanuaryThailand · 22 kmHigh 31.0°C · Low 21.7°C · 15 mm rain
- Samut Prakan in JanuaryThailand · 23 kmHigh 30.5°C · Low 22.6°C · 15 mm rain
- Watthana in JanuaryThailand · 26 kmHigh 30.8°C · Low 21.9°C · 15 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 Ban Samae Dam) is explained once on the Ban Samae Dam year overview and on the Sources, method and limits page.
Samut Prakan lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.