Rianxo climate — normals and trends
Rianxo (Spain) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 13.6 °C and it receives 1,383 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 (19.3 °C on average) and the coldest is January (8.6 °C). Rainfall peaks in December.
Rianxo averages 6 frost days, 7 hot days (≥ 30 °C) and 139 rainy days per year.
Rianxo has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 11 to 1 per year over the period.
The hottest day of the period reached 38.7 °C (on 12 July 2022) and the coldest -5.0 °C (on 6 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
RianxoGalicia
- coords
- 42.65°, -8.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.6°C
Average daily high
17.7°C
Average daily low
10.1°C
Annual rainfall
1,383mm
Sunshine / day
9.5h
Mean relative humidity
80%
Average peak wind
18.9km/h
Seasonal range
10.7°C
Frost days (< 0 °C)
6 d/yr
Hot days (≥ 30 °C)
7 d/yr
Rainy days (≥ 1 mm)
139 d/yr
Annual snowfall
0.3 cm
Average feels-like high
16.4 °C
Average feels-like low
8.2 °C
Average peak gust
42.1 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.51 · 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
38.7 °C
12 July 2022
Coldest day
-5.0 °C
6 January 1941
Wettest day
135 mm
15 October 1987
Windiest day
75.6 km/h
15 February 1941
Strongest gust
160.9 km/h
15 February 1941
Hottest feels-like
42.0 °C
3 August 2018
Coldest feels-like
-8.9 °C
11 January 1941
Snowiest day
1.8 cm
2 February 1963
Sunniest day
15.0 h
8 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 | 13.7 °C | +1.9 °C | 346 mm | +175 mm |
| Feb | 14.3 °C | +1.6 °C | 129 mm | -17 mm |
| Mar | 15.4 °C | +0.7 °C | 123 mm | -21 mm |
| Apr | 18.9 °C | +2.7 °C | 210 mm | +91 mm |
| May | 20.4 °C | +2.1 °C | 91 mm | -17 mm |
| Jun | 25.0 °C | +3.3 °C | 48 mm | -12 mm |
| Jul | 25.6 °C | +1.6 °C | 22 mm | -7 mm |
| Aug | 27.3 °C | +3.0 °C | 19 mm | -20 mm |
| Sep | 21.9 °C | -0.5 °C | 55 mm | -21 mm |
| Oct | 21.1 °C | +2.4 °C | 140 mm | -15 mm |
| Nov | 14.9 °C | +0.3 °C | 289 mm | +127 mm |
| Dec | 12.7 °C | +0.3 °C | 213 mm | +37 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 Rianxo?
Rianxo has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 13.6 °C and it receives 1,383 mm of precipitation per year.
What is the hottest day ever recorded in Rianxo?
The hottest day measured in Rianxo between 1940 and 2025 was 12 July 2022, reaching 38.7 °C.
What is the coldest day in Rianxo?
The coldest day measured in Rianxo between 1940 and 2025 was 6 January 1941, at -5.0 °C.
Does it snow in Rianxo?
Almost never: Rianxo sees virtually no snow, with about 6 frost days per year.
Has the climate of Rianxo warmed?
Yes: Rianxo warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rianxo?
The wettest day measured in Rianxo between 1940 and 2025 was 15 October 1987, with 135 mm of rain in 24 hours.
What was the windiest day in Rianxo?
The windiest day measured in Rianxo between 1940 and 2025 was 15 February 1941, with winds reaching 75.6 km/h.
What is the warmest month in Rianxo?
The warmest month in Rianxo is August (19.3 °C on average); the coldest is January (8.6 °C).
How much does it rain in Rianxo?
Rianxo receives on average 1,383 mm of precipitation per year, spread over about 139 rainy days.
Is it sunny in Rianxo?
Rianxo gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Rianxo?
The heaviest 24-hour snowfall measured in Rianxo between 1940 and 2025 was 2 February 1963, with 1.8 cm.
Are there tropical nights in Rianxo?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Rianxo.
What was the most extreme apparent temperature in Rianxo?
In Rianxo, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 3 August 2018, and the lowest was -8.9 °C on 11 January 1941.
Compare Rianxo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rianxo