Oña, Spain experiences average highs of 18°C (64°F) and lows of 8°C (46°F) throughout the year. Rainfall is moderate, averaging about 10 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have warmed by 1.1°C (2.0°F) across the available records.
Oña, Spain Weather & Climate 2026
Monthly climate averages for Oña, Spain. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Feb–Dec 
Wetter season: Jan–Nov At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
6.2/10
Best: June, July, August, September
UV Index
5
Low
Temperature 18°C / 8°C
Feels Like 16°C / 6°C
Rainy Days 10
Rainfall 52 mm
Sunshine 9 h
Humidity 77%
Wind Speed 17 km/h
Dew Point 9°C
Snow Days 3 days
Frost Days 5 days
Hottest Month
28°C
August
Avg Low15°C
Rain5days
Coldest Month
2°C
January
Avg High9°C
Rain12days
Driest Month
5days
July
Avg High27°C
Avg Low15°C
Windiest Month
20 km/h
March (Gusts 46)
Worst Time to Visit
Consider avoiding January, December due to frequent rain.
Sun Position
Sunrise 06:36
Daylight 15.3h
Sunset 21:55
Live conditions—
Oña on the map · live conditions
Oña, Spain
- Continent
- Europe
- Country
- Spain
- City
- Oña
- Population
- 1.5K
- Coordinates
- 42.73°, -3.41°
Seasonal Breakdown
Spring
Mar–May
Avg High 16°C
Avg Low 6°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 26°C
Avg Low 14°C
Rain 7 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 19°C
Avg Low 9°C
Rain 9 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 10°C
Avg Low 3°C
Rain 11 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: 9°C / 2°C . Feb: 11°C / 2°C . Mar: 13°C / 4°C . Apr: 16°C / 6°C . May: 19°C / 9°C . Jun: 23°C / 13°C . Jul: 27°C / 15°C . Aug: 28°C / 15°C . Sep: 23°C / 13°C . Oct: 20°C / 10°C . Nov: 13°C / 5°C . Dec: 11°C / 4°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 62 mm. Feb: 56 mm. Mar: 59 mm. Apr: 70 mm. May: 59 mm. Jun: 55 mm. Jul: 23 mm. Aug: 24 mm. Sep: 38 mm. Oct: 60 mm. Nov: 67 mm. Dec: 47 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 84%. Feb: 81%. Mar: 77%. Apr: 76%. May: 75%. Jun: 76%. Jul: 71%. Aug: 68%. Sep: 71%. Oct: 73%. Nov: 81%. Dec: 85%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 18 km/h . Mar: 20 km/h . Apr: 17 km/h . May: 16 km/h . Jun: 16 km/h . Jul: 17 km/h . Aug: 16 km/h . Sep: 16 km/h . Oct: 18 km/h . Nov: 19 km/h . Dec: 18 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 10h. May: 11h. Jun: 11h. Jul: 12h. Aug: 12h. Sep: 10h. Oct: 8h. Nov: 6h. 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 7. 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: 5 days. Feb: 4 days. Mar: 3 days. Apr: 1 days. May: 0 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 0 days. Nov: 1 days. Dec: 2 days.
Climate Trends
Average highs have warmed by 1.1°C (2.0°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 · 29°C | Aug · 28°C |
| Coldest month | Feb 2025 · 3°C | Jan · 2°C |
| Wettest month | Apr 2025 · 99 mm | Apr · 70 mm |
| Windiest month | Jan 2025 · 24 km/h | Mar · 20 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 9°C / 2°C | 5°C / -2°C | 12days (62 mm) Wet | 5.8h Fair | 84% Humid | 2.2 Moderate | Poor | View Details |
| February | 11°C / 2°C | 8°C / -1°C | 10days (56 mm) Wet | 7.1h Good | 81% Humid | 3.1 Moderate | Poor | View Details |
| March | 13°C / 4°C | 9°C / 0°C | 13days (59 mm) Wet | 8.6h Good | 77% Humid | 4.3 Moderate | Poor | View Details |
| April | 16°C / 6°C | 13°C / 3°C | 13days (70 mm) Wet | 9.8h Good | 76% Humid | 5.9 High | Fair | View Details |
| May | 19°C / 9°C | 18°C / 7°C | 12days (59 mm) Wet | 10.9h Excellent | 75% Muggy | 6.5 High | Good | View Details |
| June best | 23°C / 13°C | 23°C / 12°C | 11days (55 mm) Wet | 11.1h Excellent | 76% Humid | 7 High | Excellent | View Details |
| July best | 27°C / 15°C | 27°C / 15°C | 5days (23 mm) Good | 12.1h Excellent | 71% Muggy | 7.6 Very High | Excellent | View Details |
| August best | 28°C / 15°C | 28°C / 15°C | 5days (24 mm) Good | 11.6h Excellent | 68% Muggy | 7 High | Excellent | View Details |
| September best | 23°C / 13°C | 22°C / 12°C | 8days (38 mm) Wet | 9.8h Good | 71% Muggy | 5.4 High | Excellent | View Details |
| October | 20°C / 10°C | 17°C / 8°C | 8days (60 mm) Wet | 7.9h Good | 73% Muggy | 3.8 Moderate | Good | View Details |
| November | 13°C / 5°C | 10°C / 2°C | 12days (67 mm) Wet | 6.2h Fair | 81% Humid | 2.4 Moderate | Fair | View Details |
| December | 11°C / 4°C | 7°C / 0°C | 11days (47 mm) Wet | 5.6h Fair | 85% Humid | 1.8 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Oña are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Oña, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Oña is August, with average daytime highs of 28°C (82°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Oña is January, with average overnight lows of 2°C (36°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Oña is April, averaging 70mm of precipitation across 13 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Oña runs through March, April, January, May, with the heaviest rainfall in March. Based on 10-year averages for Oña.
Oña receives approximately 107 sunshine hours per year. The sunniest month is July with around 12 hours. Based on climate data for Oña.
The least favorable months to visit Oña are January, December, primarily due to frequent rain. For the best conditions, consider June, July, August, September instead.
The annual average UV index in Oña is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Oña is 77%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Oña receives snow. Months with snowfall average 3 snow days and 4 cm (2 in) of accumulation, with about 5 frost days during winter.
Average wind speeds in Oña are 17 km/h (11 mph). The windiest month is March with peak winds reaching 20 km/h (12 mph) (gusts up to 46 km/h / 28 mph).
Oña averages 2 clear-sky days per month with overall cloud cover around 66%. The clearest skies occur in August.
The annual average dew point in Oña is 9°C (48°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Oña 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 Oña ranges from 6°C (43°F) to 16°C (61°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 Oña. It earns a climate score of 7.9/10 with Excellent.
For June in Oña, pack Umbrella, Waterproof jacket, Sunscreen (SPF 30+), Sunglasses, Comfortable walking shoes. With average highs of 23°C (74°F) and 11 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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