Climate averages 1991–2020
Helong weather
in August.
A warm, wet month: the 2nd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a warm month in Helong: daytime highs average 25.7°C and nights cool to about 16.9°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 160 mm of rain on roughly 16 days, which makes August a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 55 min on an average August day.
The nearest other city in this atlas is Longjing (43 km away). In August its highs average 25.7°C, about as warm as Helong, with 134 mm of rain.
Among the 884 cities listed in China, Helong ranks joint 771st of 884 for the warmest August highs and joint 446th of 884 for the driest August (rainfall, lowest first). The mean August high of those 884 cities is 29.3°C; Helong is 3.6°C cooler than that mean.
From August to September, average highs fall by 4.7°C to 20.9°C, and monthly rainfall falls from 160 mm to 75 mm.
The annual picture
August in context
Monthly precipitation
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
Helong climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -7.3°C-19.6°C | -19.6°C | 7.7 | 1.7 | 9.49 h |
| February | -3.2°C-16.6°C | -16.6°C | 14 | 3.5 | 10.511 h |
| March | 3.8°C-8.9°C | -8.9°C | 27 | 6.9 | 11.912 h |
| April | 13.0°C0.3°C | 0.3°C | 54 | 9.9 | 13.313 h |
| May | 19.5°C6.8°C | 6.8°C | 100 | 15.4 | 14.615 h |
| June | 23.7°C12.8°C | 12.8°C | 127 | 16.4 | 15.215 h |
| July | 26.2°C17.1°C | 17.1°C | 177 | 17.2 | 15.015 h |
| August, selected | 25.7°C16.9°C | 16.9°C | 160 | 15.8 | 13.914 h |
| September | 20.9°C10.2°C | 10.2°C | 75 | 9.3 | 12.513 h |
| October | 13.3°C2.3°C | 2.3°C | 39 | 7.4 | 11.111 h |
| November | 3.1°C-6.3°C | -6.3°C | 28 | 5.7 | 9.810 h |
| December | -5.2°C-16.2°C | -16.2°C | 11 | 3.4 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet 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
- Longjing in AugustChina · 43 kmHigh 25.7°C · Low 16.8°C · 134 mm rain
- Yanji in AugustChina · 57 kmHigh 25.9°C · Low 17.3°C · 140 mm rain
- Tumen in AugustChina · 84 kmHigh 25.9°C · Low 17.7°C · 126 mm rain
- Chongjin in AugustNorth Korea · 105 kmHigh 23.8°C · Low 19.3°C · 215 mm rain
- Wangqing in AugustChina · 106 kmHigh 25.2°C · Low 17.0°C · 122 mm rain
- Ŭndŏk in AugustNorth Korea · 110 kmHigh 26.2°C · Low 19.1°C · 162 mm rain
- Dunhua in AugustChina · 111 kmHigh 24.2°C · Low 15.8°C · 158 mm rain
- Hunchun in AugustChina · 117 kmHigh 25.5°C · Low 17.4°C · 148 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 Helong) is explained once on the Helong year overview and on the Sources, method and limits page.