Longonjo climate — normals and trends
Longonjo (Angola) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 18.3 °C and it receives 1,349 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 September (20.4 °C on average) and the coldest is June (16.3 °C). Rainfall peaks in November.
Longonjo averages 0 frost days, 11 hot days (≥ 30 °C) and 145 rainy days per year.
Longonjo has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.5 °C (on 11 October 2021) and the coldest 3.3 °C (on 16 June 1974).
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
LongonjoHuambo Province
- coords
- -12.91°, 15.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.3°C
Average daily high
25.1°C
Average daily low
12.8°C
Annual rainfall
1,349mm
Sunshine / day
10.3h
Mean relative humidity
68%
Average peak wind
11.6km/h
Seasonal range
4.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
145 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.2 °C
Average feels-like low
12.4 °C
Average peak gust
31.6 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
21.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.41 · 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
34.5 °C
11 October 2021
Coldest day
3.3 °C
16 June 1974
Wettest day
67 mm
29 December 2003
Windiest day
28.4 km/h
19 April 1984
Strongest gust
63.0 km/h
19 April 1984
Hottest feels-like
33.7 °C
7 October 2023
Coldest feels-like
-0.3 °C
3 July 1997
Sunniest day
12.6 h
13 November 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 24.3 °C | +0.6 °C | 131 mm | -48 mm |
| Feb | 24.6 °C | +0.4 °C | 79 mm | -102 mm |
| Mar | 25.4 °C | +1.2 °C | 335 mm | +108 mm |
| Apr | 25.4 °C | +1.0 °C | 143 mm | +55 mm |
| May | 24.7 °C | -0.1 °C | 8 mm | +2 mm |
| Jun | 25.5 °C | +1.1 °C | 0 mm | -0 mm |
| Jul | 25.6 °C | +0.7 °C | 0 mm | 0 mm |
| Aug | 27.7 °C | +0.5 °C | 13 mm | +12 mm |
| Sep | 29.0 °C | +0.3 °C | 35 mm | +12 mm |
| Oct | 27.6 °C | +0.8 °C | 136 mm | -22 mm |
| Nov | 25.8 °C | +1.3 °C | 237 mm | -19 mm |
| Dec | 24.4 °C | +0.7 °C | 139 mm | -91 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 Longonjo?
Longonjo has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 18.3 °C and it receives 1,349 mm of precipitation per year.
What is the hottest day ever recorded in Longonjo?
The hottest day measured in Longonjo between 1940 and 2025 was 11 October 2021, reaching 34.5 °C.
What is the coldest day in Longonjo?
The coldest day measured in Longonjo between 1940 and 2025 was 16 June 1974, at 3.3 °C.
Does it snow in Longonjo?
Almost never: Longonjo sees virtually no snow, with about 0 frost days per year.
Has the climate of Longonjo warmed?
Yes: Longonjo warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Longonjo?
The wettest day measured in Longonjo between 1940 and 2025 was 29 December 2003, with 67 mm of rain in 24 hours.
What was the windiest day in Longonjo?
The windiest day measured in Longonjo between 1940 and 2025 was 19 April 1984, with winds reaching 28.4 km/h.
What is the warmest month in Longonjo?
The warmest month in Longonjo is September (20.4 °C on average); the coldest is June (16.3 °C).
How much does it rain in Longonjo?
Longonjo receives on average 1,349 mm of precipitation per year, spread over about 145 rainy days.
Is it sunny in Longonjo?
Longonjo gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Longonjo?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Longonjo.
What was the most extreme apparent temperature in Longonjo?
In Longonjo, between 1940 and 2025, the highest apparent temperature reached 33.7 °C on 7 October 2023, and the lowest was -0.3 °C on 3 July 1997.
Compare Longonjo with another city
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Nearby cities
The climate around Longonjo