15-Day Weather Forecast - Bilbao

15-day weather forecast for Bilbao: temperatures from 10°C (50°F) to 32°C (90°F). Average daily high 25°C (77°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
··
0:00
1:00
2:00
3:00
4:00
5:00
6:00
7:00
8:00
9:00
10:00
11:00
12:00
13:00
14:00
15:00
16:00
17:00
18:00
19:00
20:00
21:00
22:00
23:00

Temperature · peaks at +24°C

15-Day Temperature Trend

24°15°TodaySep27°18°Tmrw29°17°Sun32°15°Mon28°18°Tue22°18°Wed23°15°Thu23°15°Fri23°14°Sat24°16°Sun25°17°Mon31°10°Tue24°14°Wed18°14°Thu18°12°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +24°/+15°
    feels +24°12 km/hUV 6 · Mod
    07:4620:29
  • Sat, Sep 12Tomorrow
    +27°/+18°
    feels +26°12 km/hUV 6 · Mod
    07:4720:27
  • Sun, Sep 13Sun
    +29°/+17°
    feels +30°13 km/hUV 6 · Mod
    07:4820:25
  • Mon, Sep 14Mon
    +32°/+15°
    feels +32°13 km/hUV 6 · Mod
    07:5020:23
  • Tue, Sep 15Tue
    +28°/+18°
    feels +29°0.3 mm · 11%17 km/hUV 6 · Mod
    07:5120:21
    Advertisement
  • Wed, Sep 16Wed
    +22°/+18°
    feels +22°3.3 mm · 25%14 km/hUV 3 · Low
    07:5220:20
  • Thu, Sep 17Thu
    +23°/+15°
    feels +22°0 mm · 1%10 km/hUV 5 · Mod
    07:5320:18
  • Fri, Sep 18Fri
    +23°/+15°
    feels +23°0 mm · 6%8 km/hUV 5 · Mod
    07:5420:16
  • Sat, Sep 19Sat
    +23°/+14°
    feels +24°0 mm · 6%10 km/hUV 5 · Mod
    07:5520:14
  • Sun, Sep 20Sun
    +24°/+16°
    feels +25°0 mm · 29%11 km/hUV 5 · Mod
    07:5620:12
  • Mon, Sep 21Mon
    +25°/+17°
    feels +26°0 mm · 24%9 km/hUV 5 · Mod
    07:5720:11
  • Tue, Sep 22Tue
    +31°/+10°
    feels +32°0 mm · 23%7 km/hUV 5 · Mod
    07:5820:09
  • Wed, Sep 23Wed
    +24°/+14°
    feels +25°1.5 mm · 26%14 km/hUV 4 · Mod
    07:5920:07
  • Thu, Sep 24Thu
    +18°/+14°
    feels +17°5.1 mm · 15%17 km/hUV 3 · Mod
    08:0120:05
  • Fri, Sep 25Fri
    +18°/+12°
    feels +15°0.6 mm · 36%13 km/hUV 1 · Low
    08:0220:03

Weather Insight

Bilbao's 15-day outlook ranges from a low of 10°C to a high of 32°C, with an average daytime high near 25°C. That's 3° 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. 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.

Extended Outlook for Bilbao

Over the next 15 days, Bilbao is forecast to see temperatures ranging from 10°C to 32°C, averaging a daily high of 25°C. The extended outlook indicates occasional showers on 5 days, with 10.8 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.