Ban Chang climate — normals and trends
Ban Chang (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.7 °C and it receives 1,115 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 (29.0 °C on average) and the coldest is December (26.0 °C). Rainfall peaks in October.
Ban Chang averages 0 frost days, 260 hot days (≥ 30 °C) and 163 rainy days per year.
Ban Chang has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.2 °C (on 23 April 1990) and the coldest 14.0 °C (on 12 January 1955).
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
Ban ChangRayong
- coords
- 12.72°, 101.06°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.7°C
Average daily high
30.8°C
Average daily low
25.4°C
Annual rainfall
1,115mm
Sunshine / day
10.2h
Mean relative humidity
77%
Average peak wind
16.1km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
260 d/yr
Rainy days (≥ 1 mm)
163 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
29.1 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
358 d/yr
Solar radiation
19.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.2 °C per decade · r² = 0.83 · 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
36.2 °C
23 April 1990
Coldest day
14.0 °C
12 January 1955
Wettest day
117 mm
6 August 2001
Windiest day
35.7 km/h
2 October 1960
Strongest gust
76.0 km/h
11 June 1957
Hottest feels-like
44.9 °C
18 April 1953
Coldest feels-like
9.3 °C
12 January 1955
Sunniest day
12.7 h
8 July 2020
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 | 30.6 °C | +0.4 °C | 1 mm | -23 mm |
| Feb | 31.2 °C | +0.7 °C | 38 mm | +6 mm |
| Mar | 31.8 °C | +0.6 °C | 28 mm | -16 mm |
| Apr | 32.4 °C | +0.3 °C | 73 mm | +10 mm |
| May | 31.3 °C | -0.4 °C | 216 mm | +79 mm |
| Jun | 32.0 °C | +0.8 °C | 69 mm | -40 mm |
| Jul | 32.0 °C | +1.1 °C | 73 mm | -31 mm |
| Aug | 32.1 °C | +1.2 °C | 107 mm | +4 mm |
| Sep | 30.9 °C | +0.5 °C | 145 mm | -48 mm |
| Oct | 30.8 °C | +0.7 °C | 206 mm | -16 mm |
| Nov | 29.6 °C | -0.5 °C | 135 mm | +65 mm |
| Dec | 31.1 °C | +1.1 °C | 8 mm | -9 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 Ban Chang?
Ban Chang has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.7 °C and it receives 1,115 mm of precipitation per year.
What is the hottest day ever recorded in Ban Chang?
The hottest day measured in Ban Chang between 1940 and 2025 was 23 April 1990, reaching 36.2 °C.
What is the coldest day in Ban Chang?
The coldest day measured in Ban Chang between 1940 and 2025 was 12 January 1955, at 14.0 °C.
Does it snow in Ban Chang?
Almost never: Ban Chang sees virtually no snow, with about 0 frost days per year.
Has the climate of Ban Chang warmed?
Yes: Ban Chang warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ban Chang?
The wettest day measured in Ban Chang between 1940 and 2025 was 6 August 2001, with 117 mm of rain in 24 hours.
What was the windiest day in Ban Chang?
The windiest day measured in Ban Chang between 1940 and 2025 was 2 October 1960, with winds reaching 35.7 km/h.
What is the warmest month in Ban Chang?
The warmest month in Ban Chang is April (29.0 °C on average); the coldest is December (26.0 °C).
How much does it rain in Ban Chang?
Ban Chang receives on average 1,115 mm of precipitation per year, spread over about 163 rainy days.
Is it sunny in Ban Chang?
Ban Chang gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Ban Chang?
Yes: Ban Chang has on average 358 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ban Chang?
In Ban Chang, between 1940 and 2025, the highest apparent temperature reached 44.9 °C on 18 April 1953, and the lowest was 9.3 °C on 12 January 1955.
Compare Ban Chang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ban Chang