Climate averages 1991–2020
Semarang weather
in October.
A hot, wet month: the 2nd warmest and the 6th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
October is a hot month in Semarang: daytime highs average 31.3°C and nights cool to about 24.1°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 139 mm of rain on roughly 15 days, which makes October a wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 15 min on an average October day.
The nearest other city in this atlas is Ungaran (16 km away). In October its highs average 30.1°C, 1.2°C cooler than Semarang, with 148 mm of rain.
Among the 200 cities listed in Indonesia, Semarang ranks joint 55th of 200 for the warmest October highs and 80th of 200 for the driest October (rainfall, lowest first). The mean October high of those 200 cities is 30.1°C; Semarang is 1.2°C warmer than that mean.
From October to November, average highs fall by 1.6°C to 29.7°C, and monthly rainfall rises from 139 mm to 282 mm.
The annual picture
October in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Semarang climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.7°C23.5°C | 23.5°C | 391 | 29.9 | 12.512 h |
| February | 27.7°C23.5°C | 23.5°C | 356 | 27.4 | 12.312 h |
| March | 28.4°C23.4°C | 23.4°C | 345 | 29.3 | 12.112 h |
| April | 29.1°C23.4°C | 23.4°C | 237 | 25.9 | 12.012 h |
| May | 29.6°C23.3°C | 23.3°C | 102 | 16.4 | 11.812 h |
| June | 29.9°C23.0°C | 23.0°C | 60 | 10.4 | 11.712 h |
| July | 30.4°C22.7°C | 22.7°C | 38 | 6.5 | 11.812 h |
| August | 31.1°C22.8°C | 22.8°C | 23 | 3.9 | 11.912 h |
| September | 31.7°C23.6°C | 23.6°C | 44 | 6.1 | 12.112 h |
| October, selected | 31.3°C24.1°C | 24.1°C | 139 | 15.3 | 12.312 h |
| November | 29.7°C23.9°C | 23.9°C | 282 | 25.6 | 12.412 h |
| December | 28.4°C23.5°C | 23.5°C | 416 | 29.2 | 12.513 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
October in nearby cities
- Ungaran in OctoberIndonesia · 16 kmHigh 30.1°C · Low 22.2°C · 148 mm rain
- Salatiga in OctoberIndonesia · 39 kmHigh 29.8°C · Low 21.2°C · 148 mm rain
- Kudus in OctoberIndonesia · 51 kmHigh 33.6°C · Low 23.9°C · 136 mm rain
- Jepara in OctoberIndonesia · 52 kmHigh 31.7°C · Low 25.1°C · 108 mm rain
- Purwodadi in OctoberIndonesia · 56 kmHigh 33.5°C · Low 23.6°C · 117 mm rain
- Magelang in OctoberIndonesia · 58 kmHigh 28.1°C · Low 20.5°C · 221 mm rain
- Batang in OctoberIndonesia · 65 kmHigh 31.3°C · Low 25.5°C · 108 mm rain
- Muntilan in OctoberIndonesia · 67 kmHigh 28.5°C · Low 21.0°C · 221 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Semarang) is explained once on the Semarang year overview and on the Sources, method and limits page.