Tomorrow's Weather Forecast - Bilbao

Tomorrow's weather in Bilbao. high 27°C (81°F), low 18°C (64°F). Overcast.

Tomorrow’s Outlook

Tomorrow will be 3°C warmer than today. Expect pleasant, mostly clear skies with little chance of rain. Humidity sits at a moderate 62%, so the air shouldn't feel unusually damp or dry. A light breeze near 12 km/h is expected. Sunrise is at 7:47 AM and sunset at 8:27 PM, for about 12h 40m of daylight.

Tomorrow
27°/ 18°
Today24° / 15°

Tomorrow’s Hourly Weather Outlook

Morning6 AM – Noon19°
Rain probability
0%
Wind speed
6 km/h
AfternoonNoon – 6 PM26°
Rain probability
0%
Wind speed
12 km/h
Evening6 PM – Midn24°
Rain probability
0%
Wind speed
9 km/h
NightMidn – 6 AM19°
Rain probability
0%
Wind speed
5 km/h

24-Hour Rain & Temperature Forecast

Tomorrow12 Sep
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Temperature · peaks at +27°C

Planning Advice for Tomorrow

Clothing
Light layers work well; a jacket for the evening.
Outdoor
Good conditions for outdoor activities.
Travel
Standard travel conditions expected.

Sunrise & Sunset

Sunrise
Dawn 7:17 AM
Total Daylight
Full day forecastSolar noon 2:07 PM
Sunset
Dusk 8:57 PM
vs today-2 min daylight
Sunrise shift1 min later
Sunset shift2 min earlier

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Bilbao is forecast to reach a high of 27°C tomorrow, with an overnight low around 18°C. That's 5° above the long-term average high of 22°C for this time of year. It continues a recent pattern — 17 of the last 19 days with published data have run warmer than normal. Expect little chance of rain (0% probability) and a gentle breeze averaging 12 km/h. Air quality is currently good (AQI 27), with no notable outdoor health concerns.

Today vs Normal

24°C+2° above normal

The long-term average high for today is 22°C.

17 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 25°C25°2026-08-20: 21°C21°2026-08-21: 22°C22°2026-08-22: 25°C25°2026-08-23: 30°C30°2026-08-24: 27°C27°2026-08-25: 24°C24°2026-08-26: 28°C28°2026-08-27: 26°C26°2026-08-28: 25°C25°2026-08-29: 26°C26°2026-08-30: 24°C24°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.