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Weather in Semarang for September 2025

Your guide to Semarang weather in September - trends and predictions

    Temperatures

  • Until now, September 2025 in Semarang has been nearly identical to the historical average, with a temperature of 32.4 °C (showing only a slight deviation of -0.5 °C).

  • The forecast for the next days in Semarang predicts temperatures to be around 32 °C, close to the historical average.

  • In general, the average temperature in Semarang at the beginning of September is 33.1 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 33 °C by the end of September.

    • Rain 🌧️

  • The climate of Semarang in September is notably wet, with an average of 14 rainy days, and a total of 89.2 mm of precipitation.

    • More

  • Is September a good time to visit Semarang? check out the best time to travel to Semarang page.

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
33°/24°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
66 %
Avg humidity

Semarang Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Patchy rain possible
33°
2
Patchy rain possible
34°
3
Patchy rain possible
34°
4
Patchy rain possible
33°
5
Patchy light drizzle
32°
6
Partly cloudy
33°
7
Partly cloudy
33°
8
Patchy rain possible
32°
9
Patchy rain possible
34°
10
Moderate or heavy rain shower
32°
11
Patchy rain possible
32°
12
Patchy rain possible
33°
13
Cloudy
32°
14
Sunny
33°
15
Patchy rain possible
33°
16
Moderate rain
32°
17
Moderate rain
32°
18
Moderate rain
28°
19
Patchy rain possible
33°
20
Patchy rain possible
32°
21
Sunny
32°
22
Patchy rain possible
34°
23
Sunny
34°
24
Patchy rain possible
34°
25
Patchy rain possible
33°
26
Partly cloudy
32°
27
Patchy rain possible
32°
28
Patchy rain possible
33°
29
Overcast
34°
30
Moderate or heavy rain shower
33°

Temperatures trend during September in Semarang

See the weather trend as well as the moving average line

September weather in Semarang day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Patchy rain possible
Patchy rain possible
 33° /23° 0.4 mm 8
2 Sept. Patchy rain possible
Patchy rain possible
 34° /23° 0.4 mm 8
3 Sept. Patchy rain possible
Patchy rain possible
 34° /24° 0.4 mm 8
4 Sept. Patchy rain possible
Patchy rain possible
 33° /24° 2.4 mm 8
5 Sept. Patchy light drizzle
Patchy light drizzle
 32° /24° 1.1 mm 8
6 Sept. Partly cloudy
Partly cloudy
 33° /23° 0 mm 9
7 Sept. Partly cloudy
Partly cloudy
 33° /23° 0 mm 9
8 Sept. Patchy rain possible
Patchy rain possible
 32° /23° 0 mm 8
9 Sept. Patchy rain possible
Patchy rain possible
 34° /24° 7.9 mm 8
10 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 32° /23° 45.1 mm 8
11 Sept. Patchy rain possible
Patchy rain possible
 32° /24° 9.6 mm 8
12 Sept. Patchy rain possible
Patchy rain possible
 33° /23° 0.8 mm 8
13 Sept. Cloudy
Cloudy
 32° /23° 1.9 mm 8
14 Sept. Sunny
Sunny
 33° /23° 0 mm 9
15 Sept. Patchy rain possible
Patchy rain possible
 33° /24° 2 mm 2.7
16 Sept. Moderate rain
Moderate rain
 32° /24° 7.5 mm 2.4
17 Sept. Moderate rain
Moderate rain
 32° /24° 16.2 mm 2.4
18 Sept. Moderate rain
Moderate rain
 28° /24° 8.7 mm 2.4
19 Sept. Patchy rain possible
Patchy rain possible
 33° /24° 0.3 mm 7
20 Sept. Patchy rain possible
Patchy rain possible
 32° /25° 2 mm 7
21 Sept. Sunny
Sunny
 32° /24° 0 mm 8
22 Sept. Patchy rain possible
Patchy rain possible
 34° /24° 0.2 mm 7
23 Sept. Sunny
Sunny
 34° /24° 0 mm 8
24 Sept. Patchy rain possible
Patchy rain possible
 34° /24° 2.7 mm 7
25 Sept. Patchy rain possible
Patchy rain possible
 33° /24° 0.4 mm 7
26 Sept. Partly cloudy
Partly cloudy
 32° /25° 0.1 mm 8
27 Sept. Patchy rain possible
Patchy rain possible
 32° /25° 1 mm 7
28 Sept. Patchy rain possible
Patchy rain possible
 33° /25° 0.4 mm 7
29 Sept. Overcast
Overcast
 34° /25° 0 mm 8
30 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 33° /25° 7.1 mm 8
Next
Important Notice
Our weather forecast for Semarang in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Semarang forecast closer to your planned date for the most up-to-date weather information.
Change Month
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›

Semarang weather in September vs August vs October

Compare September weather in Semarang with the previous and following months. See how temperature, rainfall, wind, and other conditions change throughout the year to help you plan your visit.
AugustSeptemberOctober
WeatherLight rain shower
Light rain shower
Patchy rain possible
Patchy rain possible
Patchy rain possible
Patchy rain possible
Temperatures31°/23°33°/24°34°/25°
Rainfall136 mm89 mm69 mm
Wind13.9 km/h16.8 km/h18 km/h
Humidity74%66%67%
Rainy days24 days14 days22 days
Dry days7 days16 days9 days

Planning a trip to Semarang? Discover the best time to visit

Semarang in September - FAQ

What are the expected maximum and minimum temperatures in Semarang during September?
During September, expect a variety of temperatures with highs around 33° and lows near 24°, suitable for diverse activities and preferences.
How much rainfall should be expected in Semarang during September?
Moderate rainfall is anticipated in Semarang during September, with a total of 89.2 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Semarang during September?
The average wind speed in Semarang during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

What to pack to Semarang in September?

As you prepare for your trip to Semarang in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Semarang, during September, is comfortable and enjoyable, regardless of the weather conditions.

  • Clothing
    • Lightweight Clothing: T-shirts, blouses, shorts, skirts
    • Rain Gear: Lightweight, waterproof clothing
  • Footwear
    • Waterproof Shoes
    • Sandals/Flip-flops: Comfortable for warm climates
  • Accessories
    • Sunglasses: For sun protection
    • Sun Hats: Wide-brimmed hats for sun protection in warm weather
    • Umbrellas/Raincoats: For rainy days
  • Personal Items
    • Sunscreen: High SPF for sunny destinations
    • Lip Balm with SPF: To protect against chapped lips

September rainfall patterns in Semarang

Explore the daily rainfall trends and prepare for Semarangs September weather 💧

UV exposure in Semarang during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Semarang?

Get accurate weather forecasts for Semarang, located at latitude -6.993 and longitude 110.421. Stay updated with localized weather information tailored for Semarang.

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