Climate averages 1991–2020
Muntilan weather
in September.
A hot, wet month: one of the warmest and the 3rd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Muntilan: daytime highs average 28.5°C and nights cool to about 20.1°C. By daytime temperature it is one of the warmest months of the year.
Expect about 102 mm of rain on roughly 16 days, which makes September a wet month (the 3rd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 03 min on an average September day.
The nearest other city in this atlas is Magelang (15 km away). In September its highs average 28.0°C, about as warm as Muntilan, with 102 mm of rain.
Among the 200 cities listed in Indonesia, Muntilan ranks 160th of 200 for the warmest September highs and joint 120th of 200 for the driest September (rainfall, lowest first). The mean September high of those 200 cities is 30.1°C; Muntilan is 1.6°C cooler than that mean.
From September to October, average highs rise by 0.1°C to 28.5°C, and monthly rainfall rises from 102 mm to 221 mm.
The annual picture
September 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
Muntilan climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 27.3°C21.1°C | 21.1°C | 421 | 28.7 | 12.513 h |
| February | 27.6°C21.1°C | 21.1°C | 416 | 27.4 | 12.412 h |
| March | 27.8°C21.1°C | 21.1°C | 390 | 28.8 | 12.112 h |
| April | 28.0°C21.1°C | 21.1°C | 312 | 26.3 | 11.912 h |
| May | 28.1°C20.8°C | 20.8°C | 165 | 20.8 | 11.812 h |
| June | 27.8°C20.2°C | 20.2°C | 118 | 16.2 | 11.712 h |
| July | 27.4°C19.4°C | 19.4°C | 85 | 13.6 | 11.712 h |
| August | 27.8°C19.2°C | 19.2°C | 66 | 12.0 | 11.912 h |
| September, selected | 28.5°C20.1°C | 20.1°C | 102 | 16.0 | 12.112 h |
| October | 28.5°C21.0°C | 21.0°C | 221 | 22.9 | 12.312 h |
| November | 27.6°C21.3°C | 21.3°C | 377 | 27.8 | 12.512 h |
| December | 27.2°C21.2°C | 21.2°C | 394 | 28.1 | 12.613 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
September in nearby cities
- Magelang in SeptemberIndonesia · 15 kmHigh 28.0°C · Low 19.7°C · 102 mm rain
- Yogyakarta in SeptemberIndonesia · 26 kmHigh 29.7°C · Low 21.4°C · 66 mm rain
- Kasihan in SeptemberIndonesia · 28 kmHigh 28.8°C · Low 21.4°C · 66 mm rain
- Sewon in SeptemberIndonesia · 34 kmHigh 29.5°C · Low 22.3°C · 36 mm rain
- Salatiga in SeptemberIndonesia · 35 kmHigh 30.1°C · Low 20.5°C · 53 mm rain
- Klaten in SeptemberIndonesia · 37 kmHigh 31.0°C · Low 20.9°C · 41 mm rain
- Kartasura in SeptemberIndonesia · 49 kmHigh 31.5°C · Low 21.5°C · 40 mm rain
- Wonosobo in SeptemberIndonesia · 50 kmHigh 26.2°C · Low 18.9°C · 89 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 Muntilan) is explained once on the Muntilan year overview and on the Sources, method and limits page.
Magelang lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.