Climate averages 1991–2020
Sầm Sơn weather
in August.
A hot, very wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Sầm Sơn: daytime highs average 30.9°C and nights cool to about 26.5°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 312 mm of rain on roughly 20 days, which makes August a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 48 min on an average August day.
The nearest other city in this atlas is Thanh Hóa (16 km away). In August its highs average 31.2°C, about as warm as Sầm Sơn, with 309 mm of rain.
Among the 136 cities listed in Vietnam, Sầm Sơn ranks joint 62nd of 136 for the warmest August highs and 93rd of 136 for the driest August (rainfall, lowest first). The mean August high of those 136 cities is 30.5°C; Sầm Sơn is 0.4°C warmer than that mean.
From August to September, average highs fall by 1.3°C to 29.5°C, and monthly rainfall rises from 312 mm to 368 mm.
The annual picture
August 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
Sầm Sơn climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.8°C15.4°C | 15.4°C | 55 | 10.5 | 11.111 h |
| February | 21.2°C16.7°C | 16.7°C | 36 | 8.5 | 11.511 h |
| March | 23.8°C19.2°C | 19.2°C | 52 | 9.7 | 12.012 h |
| April | 27.3°C22.6°C | 22.6°C | 62 | 7.5 | 12.613 h |
| May | 30.3°C25.5°C | 25.5°C | 139 | 12.2 | 13.113 h |
| June | 32.0°C27.5°C | 27.5°C | 146 | 11.0 | 13.313 h |
| July | 31.7°C27.4°C | 27.4°C | 212 | 12.7 | 13.213 h |
| August, selected | 30.9°C26.5°C | 26.5°C | 312 | 20.1 | 12.813 h |
| September | 29.5°C25.2°C | 25.2°C | 368 | 20.1 | 12.312 h |
| October | 27.4°C22.9°C | 22.9°C | 241 | 16.2 | 11.712 h |
| November | 24.7°C19.9°C | 19.9°C | 82 | 9.9 | 11.211 h |
| December | 21.1°C16.3°C | 16.3°C | 53 | 8.9 | 11.011 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
August in nearby cities
- Thanh Hóa in AugustVietnam · 16 kmHigh 31.2°C · Low 26.1°C · 309 mm rain
- Nghi Sơn in AugustVietnam · 46 kmHigh 31.1°C · Low 25.9°C · 263 mm rain
- Hoàng Mai in AugustVietnam · 55 kmHigh 31.7°C · Low 26.2°C · 263 mm rain
- Hoa Lư in AugustVietnam · 59 kmHigh 31.4°C · Low 25.7°C · 333 mm rain
- Nam Định in AugustVietnam · 83 kmHigh 31.2°C · Low 26.0°C · 342 mm rain
- Phủ Lý in AugustVietnam · 90 kmHigh 31.3°C · Low 25.4°C · 340 mm rain
- Hưng Yên in AugustVietnam · 103 kmHigh 31.3°C · Low 25.6°C · 335 mm rain
- Vinh in AugustVietnam · 120 kmHigh 31.9°C · Low 26.4°C · 222 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 Sầm Sơn) is explained once on the Sầm Sơn year overview and on the Sources, method and limits page.