Riaño, Spain experiences average highs of 15°C (59°F) and lows of 7°C (45°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 0.7°C (1.3°F) across the available records.
Riaño, Spain Weather & Climate 2026
Monthly climate averages for Riaño, Spain. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Oct 
Wetter season: Mar–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
5.1/10
Best: June, July, August, September
UV Index
5
Low
Temperature 15°C / 7°C
Feels Like 14°C / 5°C
Rainy Days 14
Rainfall 96 mm
Sunshine 9 h
Humidity 79%
Wind Speed 11 km/h
Dew Point 7°C
Snow Days 7 days
Frost Days 6 days
Hottest Month
24°C
August
Avg Low15°C
Rain11days
Coldest Month
1°C
January
Avg High7°C
Rain14days
Driest Month
11days
July
Avg High23°C
Avg Low14°C
Windiest Month
14 km/h
March (Gusts 47)
Worst Time to Visit
Consider avoiding January, February, November, December due to frequent rain.
Sun Position
Sunrise 06:42
Daylight 15.3h
Sunset 22:02
Live conditions—
Riaño on the map · live conditions
Riaño, Spain
- Continent
- Europe
- Country
- Spain
- City
- Riaño
- Population
- 531
- Coordinates
- 42.98°, -5.00°
Seasonal Breakdown
Spring
Mar–May
Avg High 13°C
Avg Low 5°C
Rain 16 days/mo
Summer
Jun–Aug
Avg High 23°C
Avg Low 14°C
Rain 13 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 16°C
Avg Low 8°C
Rain 14 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 8°C
Avg Low 2°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: 7°C / 1°C . Feb: 9°C / 2°C . Mar: 10°C / 2°C . Apr: 13°C / 5°C . May: 17°C / 8°C . Jun: 20°C / 12°C . Jul: 23°C / 14°C . Aug: 24°C / 15°C . Sep: 20°C / 12°C . Oct: 17°C / 9°C . Nov: 10°C / 4°C . Dec: 8°C / 3°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 113 mm. Feb: 91 mm. Mar: 113 mm. Apr: 103 mm. May: 103 mm. Jun: 111 mm. Jul: 50 mm. Aug: 52 mm. Sep: 73 mm. Oct: 103 mm. Nov: 130 mm. Dec: 113 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 83%. Feb: 81%. Mar: 81%. Apr: 78%. May: 77%. Jun: 78%. Jul: 73%. Aug: 71%. Sep: 75%. Oct: 76%. Nov: 86%. Dec: 85%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 12 km/h . Mar: 14 km/h . Apr: 12 km/h . May: 11 km/h . Jun: 10 km/h . Jul: 10 km/h . Aug: 10 km/h . Sep: 11 km/h . Oct: 12 km/h . Nov: 13 km/h . Dec: 11 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 8h. Mar: 9h. Apr: 10h. May: 11h. Jun: 11h. Jul: 12h. Aug: 11h. Sep: 10h. Oct: 8h. Nov: 7h. Dec: 6h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 6. Jun: UV 7. Jul: UV 8. Aug: UV 7. Sep: UV 5. Oct: UV 4. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 12 days. Feb: 9 days. Mar: 13 days. Apr: 6 days. May: 2 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 1 days. Nov: 7 days. Dec: 9 days.
Climate Trends
Average highs have warmed by 0.7°C (1.3°F) across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 26°C | Aug · 24°C |
| Coldest month | Jan 2025 · 2°C | Jan · 1°C |
| Wettest month | Jan 2025 · 171 mm | Nov · 130 mm |
| Windiest month | Jan 2025 · 15 km/h | Mar · 14 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Good July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / 1°C | 4°C / -2°C | 14days (113 mm) Wet | 6.3h Fair | 83% Humid | 2.1 Moderate | Poor | View Details |
| February | 9°C / 2°C | 6°C / -1°C | 12days (91 mm) Wet | 7.5h Good | 81% Humid | 3 Moderate | Poor | View Details |
| March | 10°C / 2°C | 7°C / -1°C | 17days (113 mm) Wet | 9h Good | 81% Humid | 4.1 Moderate | Poor | View Details |
| April | 13°C / 5°C | 12°C / 2°C | 16days (103 mm) Wet | 10h Excellent | 78% Humid | 5.8 High | Fair | View Details |
| May | 17°C / 8°C | 16°C / 6°C | 16days (103 mm) Wet | 11h Excellent | 77% Humid | 6.3 High | Good | View Details |
| June best | 20°C / 12°C | 21°C / 12°C | 17days (111 mm) Wet | 11.1h Excellent | 78% Humid | 7.2 Very High | Good | View Details |
| July best | 23°C / 14°C | 25°C / 14°C | 11days (50 mm) Wet | 11.9h Excellent | 73% Muggy | 7.7 Very High | Excellent | View Details |
| August best | 24°C / 15°C | 25°C / 15°C | 11days (52 mm) Wet | 11.4h Excellent | 71% Muggy | 7.2 Very High | Excellent | View Details |
| September best | 20°C / 12°C | 20°C / 11°C | 12days (73 mm) Wet | 9.9h Good | 75% Muggy | 5.4 High | Excellent | View Details |
| October | 17°C / 9°C | 15°C / 8°C | 13days (103 mm) Wet | 8.2h Good | 76% Humid | 3.6 Moderate | Good | View Details |
| November | 10°C / 4°C | 8°C / 2°C | 16days (130 mm) Wet | 6.6h Fair | 86% Very Muggy | 2.1 Moderate | Poor | View Details |
| December | 8°C / 3°C | 6°C / 0°C | 15days (113 mm) Wet | 5.7h Fair | 85% Humid | 1.8 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Riaño are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Riaño, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Riaño is August, with average daytime highs of 24°C (75°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Riaño is January, with average overnight lows of 1°C (34°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Riaño is November, averaging 130mm of precipitation across 16 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Riaño runs through March, June, April, May, with the heaviest rainfall in March. Based on 10-year averages for Riaño.
Riaño receives approximately 109 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Riaño.
The least favorable months to visit Riaño are January, February, November, December, primarily due to frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Riaño is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Riaño is 79%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Riaño receives snow. Months with snowfall average 7 snow days and 21 cm (8 in) of accumulation, with about 6 frost days during winter.
Average wind speeds in Riaño are 11 km/h (7 mph). The windiest month is March with peak winds reaching 14 km/h (9 mph) (gusts up to 47 km/h / 29 mph).
Riaño averages 3 clear-sky days per month with overall cloud cover around 64%. The clearest skies occur in October.
The annual average dew point in Riaño is 7°C (45°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Riaño has a Oceanic climate, classified as Cfb 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 Riaño ranges from 5°C (41°F) to 14°C (57°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 Riaño. It earns a climate score of 7.4/10 with Good.
For June in Riaño, pack Warm evening layer, Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+). With average highs of 20°C (69°F) and 17 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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