15-Day Weather Forecast - Guatemala City

15-day weather forecast for Guatemala City: temperatures from 15°C (59°F) to 29°C (84°F). Average daily high 25°C (77°F) over the next 15 days.

Hourly Forecast by Day

Today·12 Sep
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Temperature · peaks at +29°C

15-Day Temperature Trend

29°17°TodaySep28°17°Tmrw28°17°Mon27°16°Tue27°15°Wed27°15°Thu26°15°Fri26°16°Sat25°16°Sun21°16°Mon24°16°Tue21°17°Wed20°16°Thu24°15°Fri23°15°Sat
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Sat, Sep 12Today
    +29°/+17°
    feels +29°Rain 2.7mm · 73%17 km/hUV 9 · V.Hi
    05:5018:05
  • Sun, Sep 13Tomorrow
    +28°/+17°
    feels +29°Rain 0.7mm · 35%17 km/hUV 9 · V.Hi
    05:5018:04
  • Mon, Sep 14Mon
    +28°/+17°
    feels +27°Rain 2.4mm · 67%21 km/hUV 9 · V.Hi
    05:5018:04
  • Tue, Sep 15Tue
    +27°/+16°
    feels +27°Rain 0.8mm · 50%18 km/hUV 9 · V.Hi
    05:5018:03
  • Wed, Sep 16Wed
    +27°/+15°
    feels +27°Rain 0.9mm · 66%19 km/hUV 9 · V.Hi
    05:5018:02
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  • Thu, Sep 17Thu
    +27°/+15°
    feels +27°Rain 1.5mm · 72%15 km/hUV 9 · V.Hi
    05:5018:01
  • Fri, Sep 18Fri
    +26°/+15°
    feels +27°Rain 8.3mm · 69%12 km/hUV 9 · V.Hi
    05:5018:01
  • Sat, Sep 19Sat
    +26°/+16°
    feels +28°Rain 15.8mm · 85%8 km/hUV 9 · V.Hi
    05:5018:00
  • Sun, Sep 20Sun
    +25°/+16°
    feels +28°Rain 20.1mm · 96%8 km/hUV 9 · V.Hi
    05:5017:59
  • Mon, Sep 21Mon
    +21°/+16°
    feels +24°Rain 14.4mm · 95%5 km/hUV 8 · V.Hi
    05:5117:58
  • Tue, Sep 22Tue
    +24°/+16°
    feels +28°Rain 24.2mm · 95%3 km/hUV 9 · V.Hi
    05:5117:58
  • Wed, Sep 23Wed
    +21°/+17°
    feels +25°Rain 48.0mm · 94%5 km/hUV 9 · V.Hi
    05:5117:57
  • Thu, Sep 24Thu
    +20°/+16°
    feels +22°Rain 25.1mm · 94%11 km/hUV 9 · V.Hi
    05:5117:56
  • Fri, Sep 25Fri
    +24°/+15°
    feels +27°Rain 8.5mm · 85%10 km/hUV 9 · V.Hi
    05:5117:55
  • Sat, Sep 26Sat
    +23°/+15°
    feels +26°Rain 6.8mm · 86%10 km/hUV 9 · V.Hi
    05:5117:55

Weather Insight

Guatemala City's 15-day outlook ranges from a low of 15°C to a high of 29°C, with an average daytime high near 25°C. Air quality is currently Moderate (AQI 56), driven mainly by PM2.5 at 8.7 μg/m³.

Today vs Normal

29°C+4° above normal

The long-term average high for today is 25°C.

29 of the last 30 days with published data ran above normal.

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

2026-08-31: 30°C30°2026-09-01: 29°C29°2026-09-02: 28°C28°2026-09-03: 25°C25°2026-09-04: 27°C27°2026-09-05: 27°C27°2026-09-06: 26°C26°2026-09-07: 27°C27°2026-09-08: 26°C26°2026-09-09: 26°C26°2026-09-10: 26°C26°2026-09-11: 28°C28°

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

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Extended Outlook for Guatemala City

Over the next 15 days, Guatemala City is forecast to see temperatures ranging from 15°C to 29°C, averaging a daily high of 25°C. The extended outlook indicates significant rainfall totalling 180.2 mm spread across 15 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.