Ranong, Thailand Climate
The warmest month is April, with an average high of 32°C; the coldest is January, with an average low of 21°C. A normal year brings 2633 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
- 27°C
- Normal low
- 23°C
- Reanalysis high
- 29°Cin 2000
- Reanalysis low
- 22°Cin 2011
- Chance of a wet day
- 90%
- Daylight
- 12 h 06 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 | 28°C | 21°C | 31°C (2005) | 16°C (2014) | 68 mm | 9.3 |
| February | 30°C | 22°C | 35°C (1998) | 17°C (2000) | 31 mm | 5.7 |
| March | 32°C | 23°C | 38°C (1992) | 19°C (1992) | 87 mm | 9.3 |
| April | 32°C | 24°C | 39°C (1998) | 21°C (1997) | 114 mm | 15.0 |
| May | 30°C | 25°C | 38°C (1998) | 22°C (1999) | 276 mm | 24.8 |
| June | 28°C | 24°C | 32°C (1992) | 22°C (1999) | 330 mm | 27.0 |
| July | 27°C | 24°C | 30°C (2010) | 22°C (2013) | 366 mm | 27.9 |
| August | 27°C | 24°C | 30°C (2020) | 22°C (2020) | 378 mm | 27.9 |
| September | 27°C | 23°C | 30°C (1997) | 22°C (2012) | 366 mm | 27.0 |
| October | 28°C | 23°C | 31°C (2002) | 18°C (1994) | 301 mm | 27.9 |
| November | 28°C | 23°C | 30°C (2012) | 18°C (2007) | 204 mm | 21.0 |
| December | 27°C | 22°C | 30°C (2002) | 15°C (1999) | 112 mm | 12.4 |
| Year | 29°C | 23°C | 2633 mm | 235 |
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.
2633 mm in a normal year, most in August.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Ranong.
The muggiest month is May, when 101 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 | 22°C | 85% | 0% | 0% | 4% | 29% | 66% | 1% |
| February | 22°C | 81% | 0% | 0% | 2% | 33% | 65% | 0% |
| March | 22°C | 77% | 0% | 0% | 1% | 25% | 72% | 2% |
| April | 23°C | 77% | 0% | 0% | 0% | 7% | 75% | 17% |
| May | 24°C | 86% | 0% | 0% | 0% | 1% | 42% | 58% |
| June | 24°C | 91% | 0% | 0% | 0% | 0% | 46% | 54% |
| July | 24°C | 91% | 0% | 0% | 0% | 0% | 68% | 32% |
| August | 24°C | 92% | 0% | 0% | 0% | 0% | 73% | 27% |
| September | 24°C | 92% | 0% | 0% | 0% | 0% | 83% | 17% |
| October | 24°C | 91% | 0% | 0% | 0% | 1% | 79% | 20% |
| November | 23°C | 90% | 0% | 0% | 0% | 7% | 77% | 16% |
| December | 22°C | 87% | 0% | 0% | 3% | 27% | 64% | 5% |
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 February, with the sky 43 percent covered on average; the cloudiest is September, at 91 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 August, averaging 7.2 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 17, with 12 h 43 min of daylight; the shortest is Dec 20, with 11 h 32 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 Ranong 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.