Lagoa climate — normals and trends
Lagoa (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 17.0 °C and it receives 916 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 August (21.8 °C on average) and the coldest is February (13.7 °C). Rainfall peaks in December.
Lagoa averages 0 frost days, 0 hot days (≥ 30 °C) and 148 rainy days per year.
Lagoa has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The hottest day of the period reached 27.5 °C (on 16 August 2024) and the coldest 6.5 °C (on 19 March 1943).
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
LagoaAzores
- coords
- 37.74°, -25.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
17.0°C
Average daily high
18.6°C
Average daily low
15.6°C
Annual rainfall
916mm
Sunshine / day
10.3h
Mean relative humidity
78%
Average peak wind
23.7km/h
Seasonal range
8.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
0.0 cm
Average feels-like high
17.8 °C
Average feels-like low
14.0 °C
Average peak gust
45.0 km/h
Tropical nights (≥ 20 °C)
35 d/yr
Solar radiation
16.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.19 · 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
27.5 °C
16 August 2024
Coldest day
6.5 °C
19 March 1943
Wettest day
79 mm
18 October 1991
Windiest day
82.3 km/h
14 December 1997
Strongest gust
171.7 km/h
15 December 1989
Hottest feels-like
31.8 °C
20 August 1988
Coldest feels-like
-2.4 °C
19 February 1966
Sunniest day
14.4 h
10 June 2023
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 | 17.4 °C | +1.9 °C | 141 mm | +28 mm |
| Feb | 16.3 °C | +1.2 °C | 147 mm | +49 mm |
| Mar | 15.0 °C | -0.5 °C | 110 mm | +8 mm |
| Apr | 16.2 °C | 0.0 °C | 102 mm | +29 mm |
| May | 18.2 °C | +0.4 °C | 91 mm | +33 mm |
| Jun | 21.5 °C | +1.2 °C | 19 mm | -20 mm |
| Jul | 22.9 °C | +0.3 °C | 22 mm | -3 mm |
| Aug | 24.3 °C | +0.6 °C | 36 mm | +2 mm |
| Sep | 22.8 °C | +0.2 °C | 43 mm | -16 mm |
| Oct | 21.8 °C | +1.6 °C | 132 mm | +34 mm |
| Nov | 18.0 °C | +0.2 °C | 73 mm | -24 mm |
| Dec | 16.6 °C | +0.2 °C | 118 mm | +0 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 Lagoa?
Lagoa has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 17.0 °C and it receives 916 mm of precipitation per year.
What is the hottest day ever recorded in Lagoa?
The hottest day measured in Lagoa between 1940 and 2025 was 16 August 2024, reaching 27.5 °C.
What is the coldest day in Lagoa?
The coldest day measured in Lagoa between 1940 and 2025 was 19 March 1943, at 6.5 °C.
Does it snow in Lagoa?
Almost never: Lagoa sees virtually no snow, with about 0 frost days per year.
Has the climate of Lagoa warmed?
Yes: Lagoa warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Lagoa?
The wettest day measured in Lagoa between 1940 and 2025 was 18 October 1991, with 79 mm of rain in 24 hours.
What was the windiest day in Lagoa?
The windiest day measured in Lagoa between 1940 and 2025 was 14 December 1997, with winds reaching 82.3 km/h.
What is the warmest month in Lagoa?
The warmest month in Lagoa is August (21.8 °C on average); the coldest is February (13.7 °C).
How much does it rain in Lagoa?
Lagoa receives on average 916 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Lagoa?
Lagoa gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Lagoa?
Yes: Lagoa has on average 35 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Lagoa?
In Lagoa, between 1940 and 2025, the highest apparent temperature reached 31.8 °C on 20 August 1988, and the lowest was -2.4 °C on 19 February 1966.
Compare Lagoa with another city
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Nearby cities
The climate around Lagoa