Ourém climate — normals and trends
Ourém (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 14.8 °C and it receives 842 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 (21.2 °C on average) and the coldest is January (8.7 °C). Rainfall peaks in December.
Ourém averages 5 frost days, 29 hot days (≥ 30 °C) and 99 rainy days per year.
Ourém has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 9 to 1 per year over the period.
The hottest day of the period reached 42.7 °C (on 1 August 2003) and the coldest -5.9 °C (on 11 January 1941).
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
OurémSantarém District
- coords
- 39.64°, -8.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.8°C
Average daily high
20.0°C
Average daily low
10.4°C
Annual rainfall
842mm
Sunshine / day
10.1h
Mean relative humidity
75%
Average peak wind
18.5km/h
Seasonal range
12.5°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
29 d/yr
Rainy days (≥ 1 mm)
99 d/yr
Annual snowfall
0.3 cm
Average feels-like high
18.9 °C
Average feels-like low
8.5 °C
Average peak gust
38.2 km/h
Tropical nights (≥ 20 °C)
4 d/yr
Solar radiation
16.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.25 · 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
42.7 °C
1 August 2003
Coldest day
-5.9 °C
11 January 1941
Wettest day
83 mm
20 January 1941
Windiest day
57.8 km/h
15 February 1941
Strongest gust
115.2 km/h
30 December 1981
Hottest feels-like
44.6 °C
1 August 2003
Coldest feels-like
-9.9 °C
11 January 1941
Snowiest day
13.0 cm
23 February 1956
Sunniest day
14.8 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 | 14.5 °C | +1.8 °C | 207 mm | +102 mm |
| Feb | 15.5 °C | +1.5 °C | 54 mm | -44 mm |
| Mar | 15.9 °C | -0.6 °C | 207 mm | +112 mm |
| Apr | 19.1 °C | +0.8 °C | 145 mm | +65 mm |
| May | 22.5 °C | +1.5 °C | 55 mm | -14 mm |
| Jun | 28.3 °C | +3.5 °C | 8 mm | -20 mm |
| Jul | 29.8 °C | +2.0 °C | 4 mm | -4 mm |
| Aug | 30.2 °C | +2.1 °C | 0 mm | -10 mm |
| Sep | 25.7 °C | -0.2 °C | 40 mm | -2 mm |
| Oct | 24.1 °C | +2.8 °C | 85 mm | -10 mm |
| Nov | 16.2 °C | +0.1 °C | 253 mm | +148 mm |
| Dec | 13.5 °C | +0.3 °C | 139 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 Ourém?
Ourém has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 14.8 °C and it receives 842 mm of precipitation per year.
What is the hottest day ever recorded in Ourém?
The hottest day measured in Ourém between 1940 and 2025 was 1 August 2003, reaching 42.7 °C.
What is the coldest day in Ourém?
The coldest day measured in Ourém between 1940 and 2025 was 11 January 1941, at -5.9 °C.
Does it snow in Ourém?
Almost never: Ourém sees virtually no snow, with about 5 frost days per year.
Has the climate of Ourém warmed?
Yes: Ourém warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ourém?
The wettest day measured in Ourém between 1940 and 2025 was 20 January 1941, with 83 mm of rain in 24 hours.
What was the windiest day in Ourém?
The windiest day measured in Ourém between 1940 and 2025 was 15 February 1941, with winds reaching 57.8 km/h.
What is the warmest month in Ourém?
The warmest month in Ourém is August (21.2 °C on average); the coldest is January (8.7 °C).
How much does it rain in Ourém?
Ourém receives on average 842 mm of precipitation per year, spread over about 99 rainy days.
Is it sunny in Ourém?
Ourém gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ourém?
The heaviest 24-hour snowfall measured in Ourém between 1940 and 2025 was 23 February 1956, with 13.0 cm.
Are there tropical nights in Ourém?
Yes: Ourém has on average 4 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Ourém?
In Ourém, between 1940 and 2025, the highest apparent temperature reached 44.6 °C on 1 August 2003, and the lowest was -9.9 °C on 11 January 1941.
Compare Ourém with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ourém