Boiro, Spain experiences average highs of 19°C (66°F) and lows of 12°C (54°F) throughout the year. Rainfall is moderate, averaging about 12 rainy days per month. Sunshine is abundant, averaging about 9 hours per day. Average highs have stayed broadly stable across the available records.
Boiro, Spain Weather & Climate 2026
Monthly climate averages for Boiro, 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
6.9/10
Best: June, July, August, September
UV Index
5
Low
Temperature 19°C / 12°C
Feels Like 18°C / 10°C
Rainy Days 12
Rainfall 128 mm
Sunshine 9 h
Humidity 79%
Wind Speed 22 km/h
Dew Point 12°C
Hottest Month
26°C
August
Avg Low17°C
Rain5days
Coldest Month
7°C
January
Avg High13°C
Rain15days
Driest Month
5days
July
Avg High25°C
Avg Low17°C
Windiest Month
24 km/h
March (Gusts 50)
Sea Temperature
13°C – 19°C
Warmest water: August (
19.3°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—
Boiro on the map · live conditions
Boiro, Spain
- Continent
- Europe
- Country
- Spain
- City
- Boiro
- Population
- 18.9K
- Coordinates
- 42.65°, -8.88°
Seasonal Breakdown
Spring
Mar–May
Avg High 17°C
Avg Low 10°C
Rain 13 days/mo
Summer
Jun–Aug
Avg High 24°C
Avg Low 16°C
Rain 7 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 20°C
Avg Low 13°C
Rain 13 days/mo
1/3 best months
Winter
Dec–Feb
Avg High 14°C
Avg Low 8°C
Rain 15 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 / 7°C . Feb: 14°C / 8°C . Mar: 15°C / 8°C . Apr: 17°C / 10°C . May: 20°C / 12°C . Jun: 22°C / 15°C . Jul: 25°C / 17°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: 204 mm. Feb: 140 mm. Mar: 158 mm. Apr: 137 mm. May: 95 mm. Jun: 69 mm. Jul: 22 mm. Aug: 26 mm. Sep: 73 mm. Oct: 210 mm. Nov: 205 mm. Dec: 200 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 83%. Feb: 82%. Mar: 79%. Apr: 78%. May: 77%. Jun: 78%. Jul: 72%. Aug: 73%. Sep: 77%. Oct: 81%. Nov: 83%. Dec: 85%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 23 km/h . Feb: 23 km/h . Mar: 24 km/h . Apr: 22 km/h . May: 21 km/h . Jun: 19 km/h . Jul: 21 km/h . Aug: 20 km/h . Sep: 19 km/h . Oct: 21 km/h . Nov: 23 km/h . Dec: 22 km/h .
Sunshine
Sunshine
Sunshine: Jan: 6h. Feb: 7h. Mar: 9h. Apr: 10h. May: 12h. 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 29 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Aug 2025 · 27°C | Aug · 26°C |
| Coldest month | Dec 2025 · 8°C | Jan · 7°C |
| Wettest month | Jan 2025 · 405 mm | Oct · 210 mm |
| Windiest month | Jan 2025 · 28 km/h | Mar · 24 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
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 13°C / 7°C | 10°C / 4°C | 15days (204 mm) Wet | 5.6h Fair | 83% Humid | 1.8 Low | Wet | View Details |
| February | 14°C / 8°C | 12°C / 5°C | 13days (140 mm) Wet | 7.3h Good | 82% Humid | 2.9 Moderate | Fair | View Details |
| March | 15°C / 8°C | 12°C / 5°C | 14days (158 mm) Wet | 8.7h Good | 79% Humid | 4.2 Moderate | Fair | View Details |
| April | 17°C / 10°C | 16°C / 7°C | 13days (137 mm) Wet | 10.4h Excellent | 78% Humid | 6 High | Good | View Details |
| May | 20°C / 12°C | 20°C / 10°C | 11days (95 mm) Wet | 11.5h Excellent | 77% Humid | 6.9 High | Good | View Details |
| June best | 22°C / 15°C | 23°C / 14°C | 10days (69 mm) Wet | 12.1h Excellent | 78% Humid | 7.1 Very High | Excellent | View Details |
| July best | 25°C / 17°C | 26°C / 16°C | 5days (22 mm) Good | 12.7h Excellent | 72% Muggy | 7.2 Very High | Excellent | View Details |
| August best | 26°C / 17°C | 26°C / 17°C | 5days (26 mm) Good | 11.7h Excellent | 73% Muggy | 6.9 High | Excellent | View Details |
| September best | 23°C / 15°C | 23°C / 15°C | 9days (73 mm) Wet | 10h Excellent | 77% Humid | 5.3 High | Excellent | View Details |
| October | 20°C / 13°C | 19°C / 12°C | 14days (210 mm) Wet | 7.7h Good | 81% Humid | 3.4 Moderate | Wet | View Details |
| November | 16°C / 10°C | 14°C / 8°C | 16days (205 mm) Wet | 6.4h Fair | 83% Humid | 2.3 Moderate | Wet | View Details |
| December | 14°C / 8°C | 12°C / 6°C | 16days (200 mm) Wet | 5.5h Fair | 85% Humid | 1.8 Low | Wet | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Boiro are June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Boiro, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Boiro is August, with average daytime highs of 26°C (78°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Boiro is January, with average overnight lows of 7°C (45°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Boiro is October, averaging 210mm of precipitation across 14 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Boiro runs through November, December, January, March, with the heaviest rainfall in November. Based on 10-year averages for Boiro.
Boiro receives approximately 110 sunshine hours per year. The sunniest month is July with around 13 hours. Based on climate data for Boiro.
The least favorable months to visit Boiro 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 Boiro is 5, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Boiro is 79%, 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.
Average wind speeds in Boiro are 22 km/h (14 mph). The windiest month is March with peak winds reaching 24 km/h (15 mph) (gusts up to 50 km/h / 31 mph).
Boiro averages 5 clear-sky days per month with overall cloud cover around 58%. The clearest skies occur in July.
The annual average dew point in Boiro is 12°C (54°F), which feels pleasant with low humidity. Outdoor activities are comfortable year-round from a humidity standpoint.
Boiro 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 Boiro 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 Boiro. It earns a climate score of 8.9/10 with Excellent.
For June in Boiro, 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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