São João da Talha climate — normals and trends
São João da Talha (Portugal) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.2 °C and it receives 558 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 (22.0 °C on average) and the coldest is January (10.7 °C). Rainfall peaks in December.
São João da Talha averages 0 frost days, 26 hot days (≥ 30 °C) and 80 rainy days per year.
São João da Talha has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The hottest day of the period reached 43.1 °C (on 21 July 1941) and the coldest -4.2 °C (on 15 January 1945).
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
São João da TalhaLisbon District
- coords
- 38.82°, -9.10°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.2°C
Average daily high
20.5°C
Average daily low
12.5°C
Annual rainfall
558mm
Sunshine / day
10.5h
Mean relative humidity
74%
Average peak wind
19.3km/h
Seasonal range
11.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
26 d/yr
Rainy days (≥ 1 mm)
80 d/yr
Annual snowfall
0.1 cm
Average feels-like high
19.5 °C
Average feels-like low
10.9 °C
Average peak gust
38.3 km/h
Tropical nights (≥ 20 °C)
6 d/yr
Solar radiation
17.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
43.1 °C
21 July 1941
Coldest day
-4.2 °C
15 January 1945
Wettest day
75 mm
13 November 2025
Windiest day
72.9 km/h
15 February 1941
Strongest gust
125.3 km/h
15 February 1941
Hottest feels-like
44.5 °C
4 August 2018
Coldest feels-like
-8.5 °C
15 January 1945
Snowiest day
9.9 cm
13 January 1945
Sunniest day
14.7 h
17 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 | 15.8 °C | +1.9 °C | 130 mm | +59 mm |
| Feb | 16.1 °C | +1.3 °C | 63 mm | -2 mm |
| Mar | 16.4 °C | -0.5 °C | 168 mm | +105 mm |
| Apr | 19.6 °C | +1.0 °C | 93 mm | +40 mm |
| May | 22.9 °C | +1.6 °C | 36 mm | -3 mm |
| Jun | 27.9 °C | +3.0 °C | 6 mm | -7 mm |
| Jul | 29.0 °C | +1.4 °C | 2 mm | -1 mm |
| Aug | 29.6 °C | +1.7 °C | 0 mm | -4 mm |
| Sep | 26.4 °C | +0.5 °C | 11 mm | -15 mm |
| Oct | 24.6 °C | +2.7 °C | 42 mm | -23 mm |
| Nov | 17.6 °C | +0.3 °C | 205 mm | +128 mm |
| Dec | 14.7 °C | +0.2 °C | 134 mm | +55 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 São João da Talha?
São João da Talha has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.2 °C and it receives 558 mm of precipitation per year.
What is the hottest day ever recorded in São João da Talha?
The hottest day measured in São João da Talha between 1940 and 2025 was 21 July 1941, reaching 43.1 °C.
What is the coldest day in São João da Talha?
The coldest day measured in São João da Talha between 1940 and 2025 was 15 January 1945, at -4.2 °C.
Does it snow in São João da Talha?
Almost never: São João da Talha sees virtually no snow, with about 0 frost days per year.
Has the climate of São João da Talha warmed?
Yes: São João da Talha warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São João da Talha?
The wettest day measured in São João da Talha between 1940 and 2025 was 13 November 2025, with 75 mm of rain in 24 hours.
What was the windiest day in São João da Talha?
The windiest day measured in São João da Talha between 1940 and 2025 was 15 February 1941, with winds reaching 72.9 km/h.
What is the warmest month in São João da Talha?
The warmest month in São João da Talha is August (22.0 °C on average); the coldest is January (10.7 °C).
How much does it rain in São João da Talha?
São João da Talha receives on average 558 mm of precipitation per year, spread over about 80 rainy days.
Is it sunny in São João da Talha?
São João da Talha gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
What is the biggest single-day snowfall in São João da Talha?
The heaviest 24-hour snowfall measured in São João da Talha between 1940 and 2025 was 13 January 1945, with 9.9 cm.
Are there tropical nights in São João da Talha?
Yes: São João da Talha has on average 6 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São João da Talha?
In São João da Talha, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 4 August 2018, and the lowest was -8.5 °C on 15 January 1945.
Compare São João da Talha with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São João da Talha