Climate averages 1991–2020
Si Racha weather
in October.
A hot, very wet month: one of the coolest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Si Racha: daytime highs average 30.1°C and nights cool to about 24.5°C. By daytime temperature it is one of the coolest months of the year.
Expect about 195 mm of rain on roughly 22 days, which makes October a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 51 min on an average October day.
The nearest other city in this atlas is Laem Chabang (11 km away). In October its highs average 29.7°C, about as warm as Si Racha, with 221 mm of rain.
Among the 46 cities listed in Thailand, Si Racha ranks joint 20th of 46 for the warmest October highs and joint 29th of 46 for the driest October (rainfall, lowest first). The mean October high of those 46 cities is 29.9°C; Si Racha is 0.2°C warmer than that mean.
From October to November, average highs rise by 0.5°C to 30.6°C, and monthly rainfall falls from 195 mm to 43 mm.
The annual picture
October 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
Si Racha climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 31.0°C22.5°C | 22.5°C | 22 | 4.7 | 11.411 h |
| February | 31.8°C23.8°C | 23.8°C | 23 | 5.1 | 11.712 h |
| March | 32.6°C25.4°C | 25.4°C | 58 | 10.6 | 12.112 h |
| April | 33.1°C26.4°C | 26.4°C | 90 | 14.1 | 12.412 h |
| May | 32.1°C26.6°C | 26.6°C | 145 | 21.2 | 12.713 h |
| June | 31.2°C26.5°C | 26.5°C | 123 | 20.9 | 12.913 h |
| July | 30.6°C26.2°C | 26.2°C | 133 | 22.5 | 12.813 h |
| August | 30.4°C26.0°C | 26.0°C | 136 | 23.3 | 12.613 h |
| September | 30.1°C25.4°C | 25.4°C | 232 | 25.1 | 12.212 h |
| October, selected | 30.1°C24.5°C | 24.5°C | 195 | 21.7 | 11.812 h |
| November | 30.6°C23.7°C | 23.7°C | 43 | 7.1 | 11.512 h |
| December | 30.5°C22.4°C | 22.4°C | 12 | 2.6 | 11.411 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
October in nearby cities
- Laem Chabang in OctoberThailand · 11 kmHigh 29.7°C · Low 24.9°C · 221 mm rain
- Chon Buri in OctoberThailand · 22 kmHigh 30.2°C · Low 24.0°C · 195 mm rain
- Pattaya in OctoberThailand · 27 kmHigh 29.7°C · Low 24.8°C · 221 mm rain
- Samut Prakan in OctoberThailand · 59 kmHigh 30.1°C · Low 24.6°C · 208 mm rain
- Lat Krabang in OctoberThailand · 63 kmHigh 30.5°C · Low 24.1°C · 183 mm rain
- Rayong in OctoberThailand · 65 kmHigh 29.5°C · Low 24.4°C · 256 mm rain
- Ban Khlong Prawet in OctoberThailand · 66 kmHigh 30.4°C · Low 24.3°C · 183 mm rain
- Thung Khru in OctoberThailand · 68 kmHigh 30.1°C · Low 24.6°C · 191 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 Si Racha) is explained once on the Si Racha year overview and on the Sources, method and limits page.
Chon Buri lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.