15-Day Weather Forecast - Hanoi

15-day weather forecast for Hanoi: temperatures from 20°C (68°F) to 32°C (90°F). Average daily high 30°C (86°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +30°C

15-Day Temperature Trend

30°22°TodaySep30°23°Tmrw32°24°Sun30°24°Mon29°24°Tue27°24°Wed28°24°Thu30°24°Fri30°24°Sat31°24°Sun32°25°Mon31°25°Tue32°24°Wed28°21°Thu29°20°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +30°/+22°
    feels +33°5.5 mm · 100%16 km/hUV 8 · V.Hi
    05:4218:03
  • Sat, Sep 12Tomorrow
    +30°/+23°
    feels +34°0 mm · 18%16 km/hUV 8 · V.Hi
    05:4318:02
  • Sun, Sep 13Sun
    +32°/+24°
    feels +35°1.0 mm · 64%18 km/hUV 4 · Mod
    05:4318:01
  • Mon, Sep 14Mon
    +30°/+24°
    feels +34°15.9 mm · 91%19 km/hUV 3 · Low
    05:4318:00
  • Tue, Sep 15Tue
    +29°/+24°
    feels +33°44.2 mm · 98%16 km/hUV 2 · Low
    05:4318:00
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  • Wed, Sep 16Wed
    +27°/+24°
    feels +32°31.0 mm · 95%14 km/hUV 8 · V.Hi
    05:4417:59
  • Thu, Sep 17Thu
    +28°/+24°
    feels +33°10.8 mm · 94%14 km/hUV 6 · Hi
    05:4417:58
  • Fri, Sep 18Fri
    +30°/+24°
    feels +36°11.6 mm · 78%7 km/hUV 8 · V.Hi
    05:4417:57
  • Sat, Sep 19Sat
    +30°/+24°
    feels +37°13.2 mm · 76%6 km/hUV 9 · V.Hi
    05:4417:56
  • Sun, Sep 20Sun
    +31°/+24°
    feels +38°5.8 mm · 53%7 km/hUV 8 · V.Hi
    05:4517:55
  • Mon, Sep 21Mon
    +32°/+25°
    feels +40°1.0 mm · 30%7 km/hUV 8 · V.Hi
    05:4517:54
  • Tue, Sep 22Tue
    +31°/+25°
    feels +37°13.4 mm · 27%12 km/hUV 9 · V.Hi
    05:4517:53
  • Wed, Sep 23Wed
    +32°/+24°
    feels +35°4.8 mm · 31%14 km/hUV 8 · V.Hi
    05:4517:52
  • Thu, Sep 24Thu
    +28°/+21°
    feels +30°0 mm · 35%12 km/hUV 8 · V.Hi
    05:4617:51
  • Fri, Sep 25Fri
    +29°/+20°
    feels +33°0 mm · 48%7 km/hUV 8 · V.Hi
    05:4617:50

Weather Insight

Hanoi's 15-day outlook ranges from a low of 20°C to a high of 32°C, with an average daytime high near 30°C. That's 1° below the long-term average high of 31°C for this time of year. Air quality is currently Unhealthy for Sensitive Groups (AQI 120), driven mainly by PM2.5 at 45 μg/m³.

Today vs Normal

30°C-1° below normal

The long-term average high for today is 31°C.

22 of the last 28 days with published data ran above normal.

That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.

2026-08-28: 33°C33°2026-08-29: 31°C31°2026-08-30: 34°C34°2026-08-31: 33°C33°2026-09-01: 33°C33°2026-09-02: 33°C33°2026-09-03: 33°C33°2026-09-04: 32°C32°2026-09-05: 30°C30°2026-09-06: 31°C31°2026-09-07: 32°C32°2026-09-08: 33°C33°

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

Air Quality

Air Quality
Unhealthy for Sensitive Groups

Health effects can be felt by sensitive groups, including children, older adults, and people with respiratory or heart conditions. The general public is less likely to be affected.

Extended Outlook for Hanoi

Over the next 15 days, Hanoi is forecast to see temperatures ranging from 19°C to 33°C, averaging a daily high of 30°C. The extended outlook indicates significant rainfall totalling 158.2 mm spread across 12 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.