Shui Chuen O, Hong Kong Climate
The warmest month is August, with an average high of 30°C; the coldest is January, with an average low of 13°C. A normal year brings 1575 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Sep 25
- Normal high
- 29°C
- Normal low
- 25°C
- Reanalysis high
- 32°Cin 2009
- Reanalysis low
- 22°Cin 1999
- Chance of a wet day
- 41%
- Daylight
- 12 h 04 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 20°C | 13°C | 26°C (2020) | 4°C (2016) | 34 mm | 3.1 |
| February | 21°C | 15°C | 27°C (1998) | 6°C (2018) | 37 mm | 5.7 |
| March | 23°C | 18°C | 29°C (1999) | 8°C (2006) | 68 mm | 9.3 |
| April | 26°C | 21°C | 30°C (2003) | 13°C (1991) | 132 mm | 12.0 |
| May | 28°C | 25°C | 34°C (2018) | 19°C (1991) | 220 mm | 18.6 |
| June | 29°C | 27°C | 34°C (2004) | 21°C (2010) | 300 mm | 21.0 |
| July | 30°C | 27°C | 34°C (2004) | 24°C (1992) | 229 mm | 21.7 |
| August | 30°C | 27°C | 34°C (2003) | 25°C (2005) | 267 mm | 21.7 |
| September | 30°C | 26°C | 33°C (1992) | 20°C (1997) | 174 mm | 15.0 |
| October | 28°C | 23°C | 32°C (2014) | 14°C (1991) | 62 mm | 6.2 |
| November | 25°C | 19°C | 30°C (2009) | 9°C (2009) | 27 mm | 6.0 |
| December | 21°C | 14°C | 27°C (1998) | 4°C (1991) | 25 mm | 3.1 |
| Year | 26°C | 21°C | 1575 mm | 143 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
1575 mm in a normal year, most in June.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Shui Chuen O.
The muggiest month is June, when 100 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 11°C | 75% | 59% | 22% | 16% | 4% | 0% | 0% |
| February | 14°C | 79% | 42% | 20% | 25% | 14% | 1% | 0% |
| March | 17°C | 81% | 17% | 17% | 26% | 34% | 6% | 0% |
| April | 20°C | 84% | 2% | 6% | 16% | 28% | 44% | 4% |
| May | 23°C | 85% | 0% | 0% | 2% | 13% | 34% | 51% |
| June | 26°C | 87% | 0% | 0% | 0% | 1% | 8% | 91% |
| July | 26°C | 86% | 0% | 0% | 0% | 0% | 1% | 99% |
| August | 26°C | 85% | 0% | 0% | 0% | 0% | 1% | 99% |
| September | 24°C | 82% | 0% | 0% | 0% | 6% | 27% | 67% |
| October | 21°C | 76% | 2% | 4% | 14% | 32% | 35% | 11% |
| November | 17°C | 74% | 15% | 23% | 26% | 22% | 14% | 0% |
| December | 12°C | 72% | 53% | 25% | 15% | 6% | 1% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is October, with the sky 51 percent covered on average; the cloudiest is June, at 78 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is December, averaging 18.7 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 18, with 13 h 31 min of daylight; the shortest is Dec 14, with 10 h 46 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Shui Chuen O in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.