Haro climate — normals and trends
Haro (Spain) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °C and it receives 688 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 (18.8 °C on average) and the coldest is January (4.0 °C). Rainfall peaks in April.
Haro averages 43 frost days, 11 hot days (≥ 30 °C) and 133 rainy days per year.
Haro has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 62 to 24 per year over the period.
The hottest day of the period reached 39.5 °C (on 24 August 2023) and the coldest -17.0 °C (on 16 February 1956).
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
HaroLa Rioja
- coords
- 42.58°, -2.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.0°C
Average daily high
15.9°C
Average daily low
6.7°C
Annual rainfall
688mm
Sunshine / day
9.3h
Mean relative humidity
76%
Average peak wind
13.8km/h
Seasonal range
14.8°C
Frost days (< 0 °C)
43 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
133 d/yr
Annual snowfall
47.0 cm
Average feels-like high
14.2 °C
Average feels-like low
4.7 °C
Average peak gust
35.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.64 · 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
39.5 °C
24 August 2023
Coldest day
-17.0 °C
16 February 1956
Wettest day
58 mm
6 November 1997
Windiest day
44.8 km/h
24 January 2009
Strongest gust
122.4 km/h
25 February 1989
Hottest feels-like
39.9 °C
9 August 2023
Coldest feels-like
-21.9 °C
16 February 1956
Snowiest day
25.8 cm
5 December 1996
Sunniest day
14.8 h
27 June 1940
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 | 10.4 °C | +2.8 °C | 72 mm | +10 mm |
| Feb | 12.6 °C | +3.5 °C | 43 mm | -14 mm |
| Mar | 11.2 °C | -0.8 °C | 100 mm | +40 mm |
| Apr | 16.9 °C | +3.0 °C | 93 mm | +18 mm |
| May | 18.9 °C | +1.5 °C | 90 mm | +16 mm |
| Jun | 27.9 °C | +6.3 °C | 39 mm | -19 mm |
| Jul | 26.6 °C | +1.8 °C | 27 mm | -8 mm |
| Aug | 29.9 °C | +4.8 °C | 24 mm | -7 mm |
| Sep | 24.1 °C | +2.0 °C | 36 mm | -9 mm |
| Oct | 20.6 °C | +3.3 °C | 24 mm | -33 mm |
| Nov | 12.9 °C | +1.4 °C | 97 mm | +29 mm |
| Dec | 10.1 °C | +1.8 °C | 54 mm | -10 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 Haro?
Haro has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 688 mm of precipitation per year.
What is the hottest day ever recorded in Haro?
The hottest day measured in Haro between 1940 and 2025 was 24 August 2023, reaching 39.5 °C.
What is the coldest day in Haro?
The coldest day measured in Haro between 1940 and 2025 was 16 February 1956, at -17.0 °C.
Does it snow in Haro?
Yes. Haro gets on average 47.0 cm of snow per year and has around 43 frost days.
Has the climate of Haro warmed?
Yes: Haro warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Haro?
The wettest day measured in Haro between 1940 and 2025 was 6 November 1997, with 58 mm of rain in 24 hours.
What was the windiest day in Haro?
The windiest day measured in Haro between 1940 and 2025 was 24 January 2009, with winds reaching 44.8 km/h.
What is the warmest month in Haro?
The warmest month in Haro is August (18.8 °C on average); the coldest is January (4.0 °C).
How much does it rain in Haro?
Haro receives on average 688 mm of precipitation per year, spread over about 133 rainy days.
Is it sunny in Haro?
Haro gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
What is the biggest single-day snowfall in Haro?
The heaviest 24-hour snowfall measured in Haro between 1940 and 2025 was 5 December 1996, with 25.8 cm.
Are there tropical nights in Haro?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Haro.
What was the most extreme apparent temperature in Haro?
In Haro, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 9 August 2023, and the lowest was -21.9 °C on 16 February 1956.
Compare Haro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Haro