Lampang climate — normals and trends
Lampang (Thailand) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 1,294 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 (29.5 °C on average) and the coldest is December (22.1 °C). Rainfall peaks in September.
Lampang averages 0 frost days, 259 hot days (≥ 30 °C) and 158 rainy days per year.
Lampang has warmed by +2.2 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.4 °C (on 16 May 1963) and the coldest 4.6 °C (on 26 December 1999).
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
LampangLampang
- coords
- 18.29°, 99.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
31.8°C
Average daily low
21.5°C
Annual rainfall
1,294mm
Sunshine / day
9.6h
Mean relative humidity
74%
Average peak wind
8.3km/h
Seasonal range
7.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
259 d/yr
Rainy days (≥ 1 mm)
158 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.9 °C
Average feels-like low
24.7 °C
Average peak gust
25.9 km/h
Tropical nights (≥ 20 °C)
258 d/yr
Solar radiation
17.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.75 · 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
42.4 °C
16 May 1963
Coldest day
4.6 °C
26 December 1999
Wettest day
132 mm
20 May 1979
Windiest day
20.3 km/h
25 April 2007
Strongest gust
69.5 km/h
22 October 1952
Hottest feels-like
47.2 °C
11 May 2016
Coldest feels-like
2.1 °C
26 December 1999
Sunniest day
13.0 h
14 July 1940
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 | 0.0 °C | 0 mm | -12 mm |
| Feb | 33.4 °C | +0.7 °C | 3 mm | -5 mm |
| Mar | 36.4 °C | +1.0 °C | 1 mm | -23 mm |
| Apr | 36.1 °C | -0.3 °C | 44 mm | -2 mm |
| May | 33.5 °C | -0.4 °C | 189 mm | +30 mm |
| Jun | 32.8 °C | +0.8 °C | 174 mm | +2 mm |
| Jul | 31.0 °C | -0.4 °C | 271 mm | +89 mm |
| Aug | 32.1 °C | +1.3 °C | 193 mm | -47 mm |
| Sep | 31.6 °C | +1.0 °C | 177 mm | -86 mm |
| Oct | 31.8 °C | +1.4 °C | 81 mm | -60 mm |
| Nov | 28.6 °C | -1.2 °C | 115 mm | +79 mm |
| Dec | 29.5 °C | +0.8 °C | 6 mm | -4 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 Lampang?
Lampang has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 1,294 mm of precipitation per year.
What is the hottest day ever recorded in Lampang?
The hottest day measured in Lampang between 1940 and 2025 was 16 May 1963, reaching 42.4 °C.
What is the coldest day in Lampang?
The coldest day measured in Lampang between 1940 and 2025 was 26 December 1999, at 4.6 °C.
Does it snow in Lampang?
Almost never: Lampang sees virtually no snow, with about 0 frost days per year.
Has the climate of Lampang warmed?
Yes: Lampang warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lampang?
The wettest day measured in Lampang between 1940 and 2025 was 20 May 1979, with 132 mm of rain in 24 hours.
What was the windiest day in Lampang?
The windiest day measured in Lampang between 1940 and 2025 was 25 April 2007, with winds reaching 20.3 km/h.
What is the warmest month in Lampang?
The warmest month in Lampang is April (29.5 °C on average); the coldest is December (22.1 °C).
How much does it rain in Lampang?
Lampang receives on average 1,294 mm of precipitation per year, spread over about 158 rainy days.
Is it sunny in Lampang?
Lampang gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Lampang?
Yes: Lampang has on average 258 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lampang?
In Lampang, between 1940 and 2025, the highest apparent temperature reached 47.2 °C on 11 May 2016, and the lowest was 2.1 °C on 26 December 1999.
Compare Lampang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lampang