Ranong climate — normals and trends
Ranong (Thailand) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 2,495 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (27.1 °C on average) and the coldest is December (24.6 °C). Rainfall peaks in October.
Ranong averages 0 frost days, 154 hot days (≥ 30 °C) and 250 rainy days per year.
Ranong has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.2 °C (on 16 April 1998) and the coldest 14.7 °C (on 2 January 1957).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
RanongRanong province
- coords
- 9.97°, 98.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
29.7°C
Average daily low
22.8°C
Annual rainfall
2,495mm
Sunshine / day
9.8h
Mean relative humidity
85%
Average peak wind
14.1km/h
Seasonal range
2.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
154 d/yr
Rainy days (≥ 1 mm)
250 d/yr
Annual snowfall
0.0 cm
Average feels-like high
34.8 °C
Average feels-like low
26.7 °C
Average peak gust
39.2 km/h
Tropical nights (≥ 20 °C)
349 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.84 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
38.2 °C
16 April 1998
Coldest day
14.7 °C
2 January 1957
Wettest day
237 mm
28 March 2011
Windiest day
31.3 km/h
25 December 2011
Strongest gust
83.5 km/h
26 October 1962
Hottest feels-like
45.7 °C
27 April 2024
Coldest feels-like
15.2 °C
2 January 1957
Sunniest day
12.6 h
12 June 1942
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.8 °C | +0.2 °C | 15 mm | -33 mm |
| Feb | 31.6 °C | +0.3 °C | 102 mm | +60 mm |
| Mar | 32.6 °C | +0.2 °C | 65 mm | -19 mm |
| Apr | 32.1 °C | 0.0 °C | 255 mm | +82 mm |
| May | 31.1 °C | +0.9 °C | 338 mm | +53 mm |
| Jun | 29.9 °C | +0.8 °C | 244 mm | -10 mm |
| Jul | 30.2 °C | +1.5 °C | 210 mm | -62 mm |
| Aug | 29.5 °C | +1.0 °C | 324 mm | +16 mm |
| Sep | 29.3 °C | +0.9 °C | 355 mm | -7 mm |
| Oct | 29.9 °C | +1.1 °C | 358 mm | -3 mm |
| Nov | 29.0 °C | +0.4 °C | 244 mm | +25 mm |
| Dec | 30.4 °C | +1.9 °C | 42 mm | -47 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Ranong?
Ranong has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 2,495 mm of precipitation per year.
What is the hottest day ever recorded in Ranong?
The hottest day measured in Ranong between 1940 and 2025 was 16 April 1998, reaching 38.2 °C.
What is the coldest day in Ranong?
The coldest day measured in Ranong between 1940 and 2025 was 2 January 1957, at 14.7 °C.
Does it snow in Ranong?
Almost never: Ranong sees virtually no snow, with about 0 frost days per year.
Has the climate of Ranong warmed?
Yes: Ranong warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ranong?
The wettest day measured in Ranong between 1940 and 2025 was 28 March 2011, with 237 mm of rain in 24 hours.
What was the windiest day in Ranong?
The windiest day measured in Ranong between 1940 and 2025 was 25 December 2011, with winds reaching 31.3 km/h.
What is the warmest month in Ranong?
The warmest month in Ranong is April (27.1 °C on average); the coldest is December (24.6 °C).
How much does it rain in Ranong?
Ranong receives on average 2,495 mm of precipitation per year, spread over about 250 rainy days.
Is it sunny in Ranong?
Ranong gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Ranong?
Yes: Ranong has on average 349 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ranong?
In Ranong, between 1940 and 2025, the highest apparent temperature reached 45.7 °C on 27 April 2024, and the lowest was 15.2 °C on 2 January 1957.
Compare Ranong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ranong