Rianxo, Spain experiences average highs of 19°C (66°F) and lows of 11°C (52°F) throughout the year. Rainfall is moderate, averaging about 11 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Rianxo, Spain Weather & Climate 2026
Monthly climate averages for Rianxo, Spain. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Sep 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.1/10
Best: June, July, August, September
UV Index
5
Low
Temperature 19°C / 11°C
Feels Like 18°C / 10°C
Rainy Days 11
Rainfall 118 mm
Sunshine 9 h
Humidity 80%
Wind Speed 19 km/h
Dew Point 12°C
Frost Days 2 days
Hottest Month
26°C
August
Avg Low17°C
Rain4days
Coldest Month
6°C
January
Avg High13°C
Rain14days
Driest Month
4days
August
Avg High26°C
Avg Low17°C
Windiest Month
21 km/h
March (Gusts 48)
Sea Temperature
13°C – 19°C
Warmest water: August (
19.1°C
)
Worst Time to Visit
Consider avoiding January, February, March, December due to frequent rain.
Sun Position
Sunrise 06:58
Daylight 15.3h
Sunset 22:16
Live conditions—
Rianxo on the map · live conditions
Rianxo, Spain
- Continent
- Europe
- Country
- Spain
- City
- Rianxo
- Population
- 11.8K
- Coordinates
- 42.65°, -8.82°
Seasonal Breakdown
Spring
Mar–May
Avg High 18°C
Avg Low 9°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 25°C
Avg Low 16°C
Rain 6 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 20°C
Avg Low 13°C
Rain 12 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 14°C
Avg Low 7°C
Rain 14 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 13°C / 6°C . Feb: 14°C / 7°C . Mar: 15°C / 8°C . Apr: 18°C / 9°C . May: 20°C / 12°C . Jun: 22°C / 14°C . Jul: 26°C / 16°C . Aug: 26°C / 17°C . Sep: 23°C / 15°C . Oct: 20°C / 13°C . Nov: 16°C / 10°C . Dec: 14°C / 8°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 186 mm. Feb: 125 mm. Mar: 156 mm. Apr: 133 mm. May: 90 mm. Jun: 66 mm. Jul: 19 mm. Aug: 23 mm. Sep: 66 mm. Oct: 192 mm. Nov: 181 mm. Dec: 178 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 84%. Feb: 83%. Mar: 80%. Apr: 79%. May: 78%. Jun: 79%. Jul: 73%. Aug: 73%. Sep: 78%. Oct: 82%. Nov: 85%. Dec: 86%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 20 km/h . Feb: 20 km/h . Mar: 21 km/h . Apr: 19 km/h . May: 18 km/h . Jun: 17 km/h . Jul: 19 km/h . Aug: 18 km/h . Sep: 17 km/h . Oct: 19 km/h . Nov: 20 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 10h. May: 11h. Jun: 12h. Jul: 13h. Aug: 12h. Sep: 10h. Oct: 8h. Nov: 6h. Dec: 6h.
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 13°C . Feb: 13°C . Mar: 14°C . Apr: 16°C . May: 17°C . Jun: 19°C . Jul: 19°C . Aug: 19°C . Sep: 18°C . Oct: 18°C . Nov: 16°C . Dec: 14°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall is trending wetter by about 19 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 28°C | Aug · 26°C |
| Coldest month | Dec 2025 · 7°C | Jan · 6°C |
| Wettest month | Jan 2025 · 346 mm | Oct · 192 mm |
| Windiest month | Jan 2025 · 24 km/h | Mar · 21 km/h |
Month-by-Month Weather Table
January
Wet 
February
Fair March
Fair April
Good May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Wet November
Wet December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 13°C / 6°C | 11°C / 4°C | 14days (186 mm) Wet | 5.6h Fair | 84% Humid | 1.8 Low | Wet | View Details |
| February | 14°C / 7°C | 12°C / 4°C | 12days (125 mm) Wet | 7.2h Good | 83% Humid | 2.9 Moderate | Fair | View Details |
| March | 15°C / 8°C | 13°C / 5°C | 14days (156 mm) Wet | 8.6h Good | 80% Humid | 4.2 Moderate | Fair | View Details |
| April | 18°C / 9°C | 17°C / 7°C | 13days (133 mm) Wet | 10.4h Excellent | 79% Humid | 5.8 High | Good | View Details |
| May | 20°C / 12°C | 20°C / 10°C | 11days (90 mm) Wet | 11.4h Excellent | 78% Humid | 6.8 High | Good | View Details |
| June best | 22°C / 14°C | 23°C / 14°C | 10days (66 mm) Wet | 12h Excellent | 79% Humid | 7.1 Very High | Excellent | View Details |
| July best | 26°C / 16°C | 27°C / 16°C | 5days (19 mm) Good | 12.6h Excellent | 73% Muggy | 7.1 Very High | Excellent | View Details |
| August best | 26°C / 17°C | 28°C / 17°C | 4days (23 mm) Good | 11.7h Excellent | 73% Muggy | 6.8 High | Excellent | View Details |
| September best | 23°C / 15°C | 23°C / 15°C | 9days (66 mm) Wet | 10h Excellent | 78% Humid | 5.2 High | Excellent | View Details |
| October | 20°C / 13°C | 20°C / 12°C | 13days (192 mm) Wet | 7.6h Good | 82% Humid | 3.4 Moderate | Wet | View Details |
| November | 16°C / 10°C | 14°C / 8°C | 15days (181 mm) Wet | 6.4h Fair | 85% Humid | 2.2 Moderate | Wet | View Details |
| December | 14°C / 8°C | 12°C / 5°C | 15days (178 mm) Wet | 5.5h Fair | 86% Very Muggy | 1.8 Low | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Rianxo are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Rianxo, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Rianxo is August, with average daytime highs of 26°C (79°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Rianxo is January, with average overnight lows of 6°C (44°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Rianxo is October, averaging 192mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Rianxo runs through November, December, January, March, with the heaviest rainfall in November. Based on 10-year averages for Rianxo.
Rianxo receives approximately 109 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Rianxo.
The least favorable months to visit Rianxo are January, February, March, December, primarily due to frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Rianxo is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Rianxo is 80%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Sea temperatures in Summer average 16°C (61°F), which most swimmers will find too cold without a wetsuit.
Rianxo rarely sees significant snowfall but does experience frost, averaging 2 frost days during the colder months.
Average wind speeds in Rianxo are 19 km/h (12 mph). The windiest month is March with peak winds reaching 21 km/h (13 mph) (gusts up to 48 km/h / 30 mph).
Rianxo averages 4 clear-sky days per month with overall cloud cover around 60%. The clearest skies occur in August.
The annual average dew point in Rianxo is 12°C (54°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Rianxo has a Warm-Summer Mediterranean climate, classified as Csb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Rianxo ranges from 10°C (50°F) to 18°C (64°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
Yes, June is a great time to visit Rianxo. It earns a climate score of 8.8/10 with Excellent.
For June in Rianxo, pack Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 22°C (72°F) and 10 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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