Climate averages 1991–2020
Purwokerto weather
in September.
A hot, wet month: the joint 5th 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 Purwokerto: daytime highs average 29.4°C and nights cool to about 22.0°C. By daytime temperature it is the joint 5th warmest of the 12 months.
Expect about 90 mm of rain on roughly 12 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 Cilacap (42 km away). In September its highs average 27.0°C, 2.4°C cooler than Purwokerto, with 109 mm of rain.
Among the 200 cities listed in Indonesia, Purwokerto ranks joint 130th of 200 for the warmest September highs and 111th of 200 for the driest September (rainfall, lowest first). The mean September high of those 200 cities is 30.1°C; Purwokerto is 0.7°C cooler than that mean.
From September to October, average highs rise by 0.2°C to 29.6°C, and monthly rainfall rises from 90 mm to 204 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
Purwokerto climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.2°C23.3°C | 23.3°C | 426 | 29.4 | 12.512 h |
| February | 29.5°C23.4°C | 23.4°C | 373 | 27.6 | 12.312 h |
| March | 29.5°C23.4°C | 23.4°C | 336 | 29.1 | 12.112 h |
| April | 29.5°C23.5°C | 23.5°C | 243 | 26.1 | 11.912 h |
| May | 29.4°C23.1°C | 23.1°C | 148 | 20.2 | 11.812 h |
| June | 28.9°C22.4°C | 22.4°C | 92 | 14.6 | 11.712 h |
| July | 28.4°C21.7°C | 21.7°C | 68 | 10.6 | 11.712 h |
| August | 28.7°C21.4°C | 21.4°C | 54 | 8.3 | 11.912 h |
| September, selected | 29.4°C22.0°C | 22.0°C | 90 | 12.1 | 12.112 h |
| October | 29.6°C23.0°C | 23.0°C | 204 | 20.6 | 12.312 h |
| November | 29.0°C23.5°C | 23.5°C | 350 | 27.4 | 12.412 h |
| December | 28.8°C23.5°C | 23.5°C | 390 | 29.0 | 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
September in nearby cities
- Cilacap in SeptemberIndonesia · 42 kmHigh 27.0°C · Low 23.3°C · 109 mm rain
- Tarub in SeptemberIndonesia · 55 kmHigh 31.4°C · Low 24.2°C · 63 mm rain
- Pemalang in SeptemberIndonesia · 61 kmHigh 31.2°C · Low 24.2°C · 94 mm rain
- Tegal in SeptemberIndonesia · 62 kmHigh 31.5°C · Low 24.1°C · 37 mm rain
- Kedungwuni in SeptemberIndonesia · 68 kmHigh 30.9°C · Low 23.2°C · 123 mm rain
- Wonosobo in SeptemberIndonesia · 74 kmHigh 26.2°C · Low 18.9°C · 89 mm rain
- Pekalongan in SeptemberIndonesia · 77 kmHigh 30.6°C · Low 23.6°C · 123 mm rain
- Astanajapura in SeptemberIndonesia · 96 kmHigh 31.6°C · Low 24.1°C · 21 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 Purwokerto) is explained once on the Purwokerto year overview and on the Sources, method and limits page.