Lamego climate — normals and trends
Lamego (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 12.4 °C and it receives 934 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 July (20.1 °C on average) and the coldest is January (5.3 °C). Rainfall peaks in December.
Lamego averages 27 frost days, 16 hot days (≥ 30 °C) and 112 rainy days per year.
Lamego has warmed by +1.3 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 38 to 16 per year over the period.
The hottest day of the period reached 39.4 °C (on 14 July 2022) and the coldest -11.6 °C (on 4 February 1963).
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
LamegoViseu District
- coords
- 41.10°, -7.81°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.4°C
Average daily high
17.2°C
Average daily low
8.0°C
Annual rainfall
934mm
Sunshine / day
9.5h
Mean relative humidity
76%
Average peak wind
14.0km/h
Seasonal range
14.8°C
Frost days (< 0 °C)
27 d/yr
Hot days (≥ 30 °C)
16 d/yr
Rainy days (≥ 1 mm)
112 d/yr
Annual snowfall
5.2 cm
Average feels-like high
15.8 °C
Average feels-like low
6.1 °C
Average peak gust
37.4 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
15.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.30 · 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
39.4 °C
14 July 2022
Coldest day
-11.6 °C
4 February 1963
Wettest day
90 mm
20 January 1941
Windiest day
47.8 km/h
30 December 1981
Strongest gust
132.8 km/h
30 December 1981
Hottest feels-like
39.7 °C
14 July 2022
Coldest feels-like
-16.0 °C
4 February 1963
Snowiest day
21.8 cm
23 February 1956
Sunniest day
14.9 h
20 June 2025
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 | 11.1 °C | +2.1 °C | 211 mm | +101 mm |
| Feb | 12.6 °C | +2.0 °C | 52 mm | -51 mm |
| Mar | 13.0 °C | -0.5 °C | 168 mm | +70 mm |
| Apr | 17.1 °C | +1.6 °C | 138 mm | +48 mm |
| May | 20.2 °C | +1.7 °C | 78 mm | -2 mm |
| Jun | 26.9 °C | +4.0 °C | 25 mm | -18 mm |
| Jul | 28.7 °C | +2.3 °C | 7 mm | -11 mm |
| Aug | 29.9 °C | +3.4 °C | 5 mm | -13 mm |
| Sep | 23.4 °C | +0.1 °C | 19 mm | -31 mm |
| Oct | 20.9 °C | +2.9 °C | 126 mm | +24 mm |
| Nov | 13.1 °C | +0.6 °C | 232 mm | +124 mm |
| Dec | 9.9 °C | +0.5 °C | 143 mm | +27 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 Lamego?
Lamego has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 12.4 °C and it receives 934 mm of precipitation per year.
What is the hottest day ever recorded in Lamego?
The hottest day measured in Lamego between 1940 and 2025 was 14 July 2022, reaching 39.4 °C.
What is the coldest day in Lamego?
The coldest day measured in Lamego between 1940 and 2025 was 4 February 1963, at -11.6 °C.
Does it snow in Lamego?
Yes. Lamego gets on average 5.2 cm of snow per year and has around 27 frost days.
Has the climate of Lamego warmed?
Yes: Lamego warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lamego?
The wettest day measured in Lamego between 1940 and 2025 was 20 January 1941, with 90 mm of rain in 24 hours.
What was the windiest day in Lamego?
The windiest day measured in Lamego between 1940 and 2025 was 30 December 1981, with winds reaching 47.8 km/h.
What is the warmest month in Lamego?
The warmest month in Lamego is July (20.1 °C on average); the coldest is January (5.3 °C).
How much does it rain in Lamego?
Lamego receives on average 934 mm of precipitation per year, spread over about 112 rainy days.
Is it sunny in Lamego?
Lamego gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Lamego?
The heaviest 24-hour snowfall measured in Lamego between 1940 and 2025 was 23 February 1956, with 21.8 cm.
Are there tropical nights in Lamego?
Yes: Lamego has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lamego?
In Lamego, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 14 July 2022, and the lowest was -16.0 °C on 4 February 1963.
Compare Lamego with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Lamego