Mieres, Spain experiences average highs of 17°C (63°F) and lows of 8°C (46°F) throughout the year. Rainfall is frequent, averaging about 15 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 1.2°C (2.2°F) across the available records.
Mieres, Spain Weather & Climate 2026
Monthly climate averages for Mieres, Spain. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Mar–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6/10
Best: July, August, September
UV Index
5
Low
Temperature 17°C / 8°C
Feels Like 17°C / 7°C
Rainy Days 15
Rainfall 106 mm
Sunshine 9 h
Humidity 83%
Wind Speed 11 km/h
Dew Point 10°C
Snow Days 4 days
Frost Days 4 days
Hottest Month
23°C
August
Avg Low15°C
Rain15days
Coldest Month
3°C
January
Avg High11°C
Rain14days
Driest Month
12days
February
Avg High13°C
Avg Low3°C
Windiest Month
13 km/h
March (Gusts 42)
Worst Time to Visit
Consider avoiding January, February, March, December due to frequent rain.
Sun Position
Sunrise 06:44
Daylight 15.4h
Sunset 22:06
Live conditions—
Mieres on the map · live conditions
Mieres, Spain
- Continent
- Europe
- Country
- Spain
- City
- Mieres
- Population
- 44.1K
- Coordinates
- 43.25°, -5.77°
Seasonal Breakdown
Spring
Mar–May
Avg High 16°C
Avg Low 6°C
Rain 16 days/mo
Summer
Jun–Aug
Avg High 22°C
Avg Low 14°C
Rain 16 days/mo
2/3 best months
Autumn
Sep–Nov
Avg High 18°C
Avg Low 9°C
Rain 14 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 12°C
Avg Low 3°C
Rain 13 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: 11°C / 3°C . Feb: 13°C / 3°C . Mar: 13°C / 4°C . Apr: 16°C / 6°C . May: 18°C / 9°C . Jun: 20°C / 12°C . Jul: 22°C / 14°C . Aug: 23°C / 15°C . Sep: 21°C / 12°C . Oct: 19°C / 10°C . Nov: 14°C / 6°C . Dec: 12°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 115 mm. Feb: 100 mm. Mar: 102 mm. Apr: 108 mm. May: 115 mm. Jun: 150 mm. Jul: 71 mm. Aug: 81 mm. Sep: 90 mm. Oct: 98 mm. Nov: 129 mm. Dec: 114 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 83%. Feb: 82%. Mar: 80%. Apr: 81%. May: 83%. Jun: 86%. Jul: 85%. Aug: 85%. Sep: 84%. Oct: 82%. Nov: 84%. Dec: 84%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 12 km/h . Feb: 12 km/h . Mar: 13 km/h . Apr: 11 km/h . May: 11 km/h . Jun: 10 km/h . Jul: 11 km/h . Aug: 11 km/h . Sep: 10 km/h . Oct: 11 km/h . Nov: 12 km/h . Dec: 12 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 10h. May: 11h. Jun: 11h. Jul: 12h. Aug: 11h. Sep: 10h. Oct: 8h. Nov: 6h. Dec: 5h.
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 7. 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: 6 days. Feb: 5 days. Mar: 6 days. Apr: 2 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 2 days. Dec: 4 days.
Climate Trends
Average highs have warmed by 1.2°C (2.2°F) across the available records. Average rainfall is trending drier by about 18 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 25°C | Aug · 23°C |
| Coldest month | Dec 2025 · 4°C | Jan · 3°C |
| Wettest month | Nov 2025 · 137 mm | Jun · 150 mm |
| Windiest month | Jan 2025 · 15 km/h | Mar · 13 km/h |
Month-by-Month Weather Table
January
Poor 
February
Fair March
Poor April
Fair May
Good June
Wet July best
Excellent August best
Excellent September best
Excellent October
Good November
Fair December
Fair | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 11°C / 3°C | 9°C / 0°C | 14days (115 mm) Wet | 6h Fair | 83% Humid | 2.1 Moderate | Poor | View Details |
| February | 13°C / 3°C | 10°C / 0°C | 12days (100 mm) Wet | 7.3h Good | 82% Humid | 2.9 Moderate | Fair | View Details |
| March | 13°C / 4°C | 12°C / 1°C | 15days (102 mm) Wet | 8.9h Good | 80% Humid | 4.3 Moderate | Poor | View Details |
| April | 16°C / 6°C | 15°C / 4°C | 15days (108 mm) Wet | 10.1h Excellent | 81% Humid | 5.7 High | Fair | View Details |
| May | 18°C / 9°C | 18°C / 8°C | 17days (115 mm) Wet | 10.9h Excellent | 83% Humid | 6.2 High | Good | View Details |
| June | 20°C / 12°C | 22°C / 12°C | 19days (150 mm) Wet | 10.7h Excellent | 86% Very Muggy | 6.7 High | Wet | View Details |
| July best | 22°C / 14°C | 25°C / 15°C | 14days (71 mm) Wet | 11.7h Excellent | 85% Humid | 7 High | Excellent | View Details |
| August best | 23°C / 15°C | 25°C / 15°C | 15days (81 mm) Wet | 11.1h Excellent | 85% Humid | 6.5 High | Excellent | View Details |
| September best | 21°C / 12°C | 22°C / 12°C | 14days (90 mm) Wet | 9.7h Good | 84% Humid | 5.2 High | Excellent | View Details |
| October | 19°C / 10°C | 19°C / 8°C | 13days (98 mm) Wet | 8h Good | 82% Humid | 3.7 Moderate | Good | View Details |
| November | 14°C / 6°C | 12°C / 4°C | 15days (129 mm) Wet | 6.3h Fair | 84% Humid | 2.3 Moderate | Fair | View Details |
| December | 12°C / 4°C | 10°C / 1°C | 14days (114 mm) Wet | 5.4h Fair | 84% Humid | 1.8 Low | Fair | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Mieres are July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Mieres, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Mieres is August, with average daytime highs of 23°C (73°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Mieres is January, with average overnight lows of 3°C (37°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Mieres is June, averaging 150mm of precipitation across 19 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Mieres runs through June, May, March, April, with the heaviest rainfall in June. Based on 10-year averages for Mieres.
Mieres receives approximately 106 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Mieres.
The least favorable months to visit Mieres are January, February, March, December, primarily due to frequent rain. For the best conditions, consider July, August, September instead.
The annual average UV index in Mieres is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Mieres is 83%, classified as humid. High humidity makes warm temperatures feel significantly hotter — lightweight, breathable clothing is recommended.
Yes, Mieres receives snow. Months with snowfall average 4 snow days and 8 cm (3 in) of accumulation, with about 4 frost days during winter.
Average wind speeds in Mieres are 11 km/h (7 mph). The windiest month is March with peak winds reaching 13 km/h (8 mph) (gusts up to 42 km/h / 26 mph).
Mieres averages 2 clear-sky days per month with overall cloud cover around 70%. The clearest skies occur in December.
The annual average dew point in Mieres is 10°C (50°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Mieres 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 Mieres ranges from 7°C (45°F) to 17°C (63°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Mieres, with a climate score of 6.7/10. Consider visiting during July, August, September instead for better conditions.
For June in Mieres, pack Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+), Sunglasses. With average highs of 20°C (69°F) and 19 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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