Climate averages 1991–2020
Sakon Nakhon weather
in September.
A hot, very wet month: the 8th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Sakon Nakhon: daytime highs average 29.7°C and nights cool to about 23.7°C. By daytime temperature it is the 8th warmest of the 12 months.
Expect about 268 mm of rain on roughly 24 days, which makes September a very wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 15 min on an average September day.
The nearest other city in this atlas is Thakhèk (78 km away). In September its highs average 29.4°C, about as warm as Sakon Nakhon, with 317 mm of rain.
Among the 46 cities listed in Thailand, Sakon Nakhon ranks joint 38th of 46 for the warmest September highs and 35th of 46 for the driest September (rainfall, lowest first). The mean September high of those 46 cities is 30.3°C; Sakon Nakhon is 0.6°C cooler than that mean.
From September to October, average highs fall by 0.3°C to 29.5°C, and monthly rainfall falls from 268 mm to 94 mm.
The annual picture
September 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
Sakon Nakhon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 28.2°C17.0°C | 17.0°C | 6.5 | 1.5 | 11.211 h |
| February | 30.3°C19.0°C | 19.0°C | 14 | 2.8 | 11.612 h |
| March | 32.7°C22.2°C | 22.2°C | 38 | 5.7 | 12.012 h |
| April | 33.7°C24.5°C | 24.5°C | 73 | 11.5 | 12.513 h |
| May | 32.2°C25.0°C | 25.0°C | 216 | 22.3 | 12.913 h |
| June | 31.0°C25.1°C | 25.1°C | 240 | 24.4 | 13.113 h |
| July | 30.3°C24.7°C | 24.7°C | 314 | 27.0 | 13.013 h |
| August | 29.9°C24.3°C | 24.3°C | 355 | 28.4 | 12.713 h |
| September, selected | 29.7°C23.7°C | 23.7°C | 268 | 23.6 | 12.212 h |
| October | 29.5°C22.1°C | 22.1°C | 94 | 10.3 | 11.812 h |
| November | 29.1°C19.9°C | 19.9°C | 18 | 3.2 | 11.311 h |
| December | 27.6°C17.2°C | 17.2°C | 5.5 | 1.2 | 11.111 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
September in nearby cities
- Thakhèk in SeptemberLaos · 78 kmHigh 29.4°C · Low 23.1°C · 317 mm rain
- Savannakhet in SeptemberLaos · 93 kmHigh 29.4°C · Low 23.3°C · 257 mm rain
- Udon Thani in SeptemberThailand · 147 kmHigh 29.9°C · Low 23.7°C · 276 mm rain
- Khon Kaen in SeptemberThailand · 161 kmHigh 30.1°C · Low 23.8°C · 237 mm rain
- Vientiane in SeptemberLaos · 187 kmHigh 29.6°C · Low 23.8°C · 300 mm rain
- Ubon Ratchathani in SeptemberThailand · 227 kmHigh 29.9°C · Low 23.8°C · 273 mm rain
- Hà Tĩnh in SeptemberVietnam · 228 kmHigh 29.3°C · Low 24.6°C · 391 mm rain
- Vinh in SeptemberVietnam · 235 kmHigh 29.9°C · Low 25.0°C · 330 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 Sakon Nakhon) is explained once on the Sakon Nakhon year overview and on the Sources, method and limits page.