Alfaro climate — normals and trends
Alfaro (Spain) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.9 °C and it receives 464 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 (22.7 °C on average) and the coldest is January (5.8 °C). Rainfall peaks in May.
Alfaro averages 22 frost days, 44 hot days (≥ 30 °C) and 87 rainy days per year.
Alfaro has warmed by +2.8 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 33 to 11 per year over the period.
The hottest day of the period reached 42.7 °C (on 29 June 2019) and the coldest -14.5 °C (on 12 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
AlfaroLa Rioja
- coords
- 42.18°, -1.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.9°C
Average daily high
19.3°C
Average daily low
9.1°C
Annual rainfall
464mm
Sunshine / day
10.0h
Mean relative humidity
67%
Average peak wind
17.0km/h
Seasonal range
16.9°C
Frost days (< 0 °C)
22 d/yr
Hot days (≥ 30 °C)
44 d/yr
Rainy days (≥ 1 mm)
87 d/yr
Annual snowfall
5.7 cm
Average feels-like high
17.3 °C
Average feels-like low
7.0 °C
Average peak gust
37.1 km/h
Tropical nights (≥ 20 °C)
7 d/yr
Solar radiation
15.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.68 · 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
29 June 2019
Coldest day
-14.5 °C
12 January 1941
Wettest day
49 mm
29 November 2014
Windiest day
43.5 km/h
2 December 1963
Strongest gust
96.8 km/h
5 March 2009
Hottest feels-like
43.3 °C
11 August 2025
Coldest feels-like
-18.6 °C
12 January 1941
Snowiest day
18.3 cm
6 December 1950
Sunniest day
14.6 h
29 June 2019
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 | 12.2 °C | +2.3 °C | 31 mm | -5 mm |
| Feb | 14.3 °C | +2.6 °C | 31 mm | -1 mm |
| Mar | 13.6 °C | -1.5 °C | 96 mm | +59 mm |
| Apr | 19.2 °C | +1.6 °C | 69 mm | +20 mm |
| May | 22.6 °C | +0.9 °C | 71 mm | +21 mm |
| Jun | 32.0 °C | +5.6 °C | 37 mm | -5 mm |
| Jul | 30.9 °C | +1.2 °C | 25 mm | +1 mm |
| Aug | 33.8 °C | +4.4 °C | 25 mm | -3 mm |
| Sep | 27.1 °C | +1.6 °C | 11 mm | -28 mm |
| Oct | 23.0 °C | +3.0 °C | 18 mm | -28 mm |
| Nov | 15.5 °C | +1.6 °C | 56 mm | +11 mm |
| Dec | 12.1 °C | +1.7 °C | 55 mm | +17 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 Alfaro?
Alfaro has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.9 °C and it receives 464 mm of precipitation per year.
What is the hottest day ever recorded in Alfaro?
The hottest day measured in Alfaro between 1940 and 2025 was 29 June 2019, reaching 42.7 °C.
What is the coldest day in Alfaro?
The coldest day measured in Alfaro between 1940 and 2025 was 12 January 1941, at -14.5 °C.
Does it snow in Alfaro?
Yes. Alfaro gets on average 5.7 cm of snow per year and has around 22 frost days.
Has the climate of Alfaro warmed?
Yes: Alfaro warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Alfaro?
The wettest day measured in Alfaro between 1940 and 2025 was 29 November 2014, with 49 mm of rain in 24 hours.
What was the windiest day in Alfaro?
The windiest day measured in Alfaro between 1940 and 2025 was 2 December 1963, with winds reaching 43.5 km/h.
What is the warmest month in Alfaro?
The warmest month in Alfaro is July (22.7 °C on average); the coldest is January (5.8 °C).
How much does it rain in Alfaro?
Alfaro receives on average 464 mm of precipitation per year, spread over about 87 rainy days.
Is it sunny in Alfaro?
Alfaro gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
What is the biggest single-day snowfall in Alfaro?
The heaviest 24-hour snowfall measured in Alfaro between 1940 and 2025 was 6 December 1950, with 18.3 cm.
Are there tropical nights in Alfaro?
Yes: Alfaro has on average 7 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Alfaro?
In Alfaro, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 11 August 2025, and the lowest was -18.6 °C on 12 January 1941.
Compare Alfaro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Alfaro