15-Day Weather Forecast - Semarang

15-day weather forecast for Semarang: temperatures from 24°C (75°F) to 36°C (97°F). Average daily high 35°C (95°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 +35°C

15-Day Temperature Trend

35°25°TodaySep35°25°Tmrw36°24°Sun34°24°Mon36°26°Tue34°25°Wed33°25°Thu33°27°Fri33°25°Sat34°25°Sun36°25°Mon36°25°Tue36°24°Wed36°24°Thu34°25°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +35°/+25°
    feels +38°0.2 mm · 12%15 km/hUV 9 · V.Hi
    05:3417:36
  • Sat, Sep 12Tomorrow
    +35°/+25°
    feels +38°0 mm · 6%19 km/hUV 9 · V.Hi
    05:3317:35
  • Sun, Sep 13Sun
    +36°/+24°
    feels +38°17 km/hUV 9 · V.Hi
    05:3217:35
  • Mon, Sep 14Mon
    +34°/+24°
    feels +38°0.1 mm · 15%17 km/hUV 9 · V.Hi
    05:3217:35
  • Tue, Sep 15Tue
    +36°/+26°
    feels +37°0 mm · 24%16 km/hUV 9 · V.Hi
    05:3117:35
    Advertisement
  • Wed, Sep 16Wed
    +34°/+25°
    feels +38°0 mm · 18%15 km/hUV 9 · V.Hi
    05:3117:35
  • Thu, Sep 17Thu
    +33°/+25°
    feels +37°0 mm · 25%18 km/hUV 9 · V.Hi
    05:3017:35
  • Fri, Sep 18Fri
    +33°/+27°
    feels +37°2.4 mm · 49%14 km/hUV 9 · V.Hi
    05:3017:34
  • Sat, Sep 19Sat
    +33°/+25°
    feels +38°7.8 mm · 49%10 km/hUV 9 · V.Hi
    05:2917:34
  • Sun, Sep 20Sun
    +34°/+25°
    feels +38°0.4 mm · 18%12 km/hUV 9 · V.Hi
    05:2917:34
  • Mon, Sep 21Mon
    +36°/+25°
    feels +37°0.2 mm · 19%13 km/hUV 8 · V.Hi
    05:2817:34
  • Tue, Sep 22Tue
    +36°/+25°
    feels +38°0 mm · 19%12 km/hUV 9 · V.Hi
    05:2817:34
  • Wed, Sep 23Wed
    +36°/+24°
    feels +37°0 mm · 8%14 km/hUV 9 · V.Hi
    05:2717:34
  • Thu, Sep 24Thu
    +36°/+24°
    feels +38°0 mm · 14%8 km/hUV 9 · V.Hi
    05:2717:33
  • Fri, Sep 25Fri
    +34°/+25°
    feels +38°0 mm · 14%8 km/hUV 9 · V.Hi
    05:2617:33

Weather Insight

Semarang's 15-day outlook ranges from a low of 24°C to a high of 36°C, with an average daytime high near 35°C. Air quality is currently Unhealthy (AQI 163), driven mainly by O₃ at 58 μg/m³.

Today vs Normal

35°C0° below normal

The long-term average high for today is 35°C.

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

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

2026-08-28: 34°C34°2026-08-29: 34°C34°2026-08-30: 33°C33°2026-08-31: 35°C35°2026-09-01: 35°C35°2026-09-02: 34°C34°2026-09-03: 34°C34°2026-09-04: 35°C35°2026-09-05: 35°C35°2026-09-06: 34°C34°2026-09-07: 34°C34°2026-09-08: 33°C33°

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

Air Quality

Air Quality
Unhealthy

Health effects can be immediately felt by sensitive groups. Healthy individuals may experience difficulty breathing and throat irritation with prolonged exposure. Limit outdoor activity.

Extended Outlook for Semarang

Over the next 15 days, Semarang is forecast to see temperatures ranging from 24°C to 37°C, averaging a daily high of 35°C. The extended outlook indicates occasional showers on 6 days, with 11.1 mm total accumulation. High temperatures may pose heat stress - stay hydrated and limit sun exposure during peak afternoon hours.