Sơn Trà climate — normals and trends
Sơn Trà (Vietnam) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 25.7 °C and it receives 2,373 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 June (29.2 °C on average) and the coldest is January (21.5 °C). Rainfall peaks in October.
Sơn Trà averages 0 frost days, 129 hot days (≥ 30 °C) and 212 rainy days per year.
Sơn Trà has warmed by +1.2 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 36.6 °C (on 27 June 2019) and the coldest 14.2 °C (on 25 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
Sơn TràDa Nang City
- coords
- 16.06°, 108.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.7°C
Average daily high
28.0°C
Average daily low
24.0°C
Annual rainfall
2,373mm
Sunshine / day
9.4h
Mean relative humidity
83%
Average peak wind
14.3km/h
Seasonal range
7.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
129 d/yr
Rainy days (≥ 1 mm)
212 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.9 °C
Average feels-like low
27.8 °C
Average peak gust
28.0 km/h
Tropical nights (≥ 20 °C)
331 d/yr
Solar radiation
17.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.2 °C per decade · r² = 0.54 · 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
36.6 °C
27 June 2019
Coldest day
14.2 °C
25 December 1999
Wettest day
296 mm
12 December 2000
Windiest day
64.6 km/h
29 September 2009
Strongest gust
127.8 km/h
29 September 2009
Hottest feels-like
45.8 °C
19 May 2019
Coldest feels-like
12.7 °C
14 January 1963
Sunniest day
12.7 h
2 June 2009
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 | 22.5 °C | -0.7 °C | 137 mm | -32 mm |
| Feb | 23.3 °C | -0.9 °C | 154 mm | +56 mm |
| Mar | 25.3 °C | -0.9 °C | 181 mm | +98 mm |
| Apr | 28.0 °C | -0.7 °C | 37 mm | -30 mm |
| May | 31.1 °C | +0.3 °C | 102 mm | -6 mm |
| Jun | 32.1 °C | 0.0 °C | 310 mm | +198 mm |
| Jul | 32.5 °C | +0.5 °C | 129 mm | +24 mm |
| Aug | 32.2 °C | +0.6 °C | 225 mm | +80 mm |
| Sep | 30.4 °C | +0.6 °C | 345 mm | +64 mm |
| Oct | 28.4 °C | +0.9 °C | 682 mm | +244 mm |
| Nov | 25.7 °C | 0.0 °C | 594 mm | +160 mm |
| Dec | 24.6 °C | +0.9 °C | 302 mm | -31 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 Sơn Trà?
Sơn Trà has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 25.7 °C and it receives 2,373 mm of precipitation per year.
What is the hottest day ever recorded in Sơn Trà?
The hottest day measured in Sơn Trà between 1940 and 2025 was 27 June 2019, reaching 36.6 °C.
What is the coldest day in Sơn Trà?
The coldest day measured in Sơn Trà between 1940 and 2025 was 25 December 1999, at 14.2 °C.
Does it snow in Sơn Trà?
Almost never: Sơn Trà sees virtually no snow, with about 0 frost days per year.
Has the climate of Sơn Trà warmed?
Yes: Sơn Trà warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sơn Trà?
The wettest day measured in Sơn Trà between 1940 and 2025 was 12 December 2000, with 296 mm of rain in 24 hours.
What was the windiest day in Sơn Trà?
The windiest day measured in Sơn Trà between 1940 and 2025 was 29 September 2009, with winds reaching 64.6 km/h.
What is the warmest month in Sơn Trà?
The warmest month in Sơn Trà is June (29.2 °C on average); the coldest is January (21.5 °C).
How much does it rain in Sơn Trà?
Sơn Trà receives on average 2,373 mm of precipitation per year, spread over about 212 rainy days.
Is it sunny in Sơn Trà?
Sơn Trà gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Sơn Trà?
Yes: Sơn Trà has on average 331 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sơn Trà?
In Sơn Trà, between 1940 and 2025, the highest apparent temperature reached 45.8 °C on 19 May 2019, and the lowest was 12.7 °C on 14 January 1963.
Compare Sơn Trà with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sơn Trà