Climate averages 1991–2020
Sidoarjo weather
in August.
A hot, very dry month: the joint 3rd warmest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a hot month in Sidoarjo: daytime highs average 32.1°C and nights cool to about 22.4°C. By daytime temperature it is the joint 3rd warmest of the 12 months.
Expect about 3.7 mm of rain on roughly 1 day, which makes August a very dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 11 h 52 min on an average August day.
The nearest other city in this atlas is Bangil (20 km away). In August its highs average 31.8°C, about as warm as Sidoarjo, with 3.7 mm of rain.
Among the 200 cities listed in Indonesia, Sidoarjo ranks 7th of 200 for the warmest August highs and joint 5th of 200 for the driest August (rainfall, lowest first). The mean August high of those 200 cities is 29.5°C; Sidoarjo is 2.6°C warmer than that mean.
From August to September, average highs rise by 1.3°C to 33.3°C, and monthly rainfall rises from 3.7 mm to 11 mm.
The annual picture
August 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
Sidoarjo climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 29.6°C23.7°C | 23.7°C | 298 | 28.9 | 12.513 h |
| February | 29.5°C23.6°C | 23.6°C | 280 | 27.3 | 12.312 h |
| March | 29.8°C23.6°C | 23.6°C | 253 | 27.8 | 12.112 h |
| April | 30.1°C23.7°C | 23.7°C | 144 | 21.2 | 11.912 h |
| May | 30.9°C23.6°C | 23.6°C | 49 | 10.1 | 11.812 h |
| June | 30.9°C23.1°C | 23.1°C | 24 | 6.3 | 11.712 h |
| July | 31.2°C22.4°C | 22.4°C | 12 | 3.0 | 11.712 h |
| August, selected | 32.1°C22.4°C | 22.4°C | 3.7 | 1.4 | 11.912 h |
| September | 33.3°C23.1°C | 23.1°C | 11 | 2.7 | 12.112 h |
| October | 33.6°C24.0°C | 24.0°C | 38 | 8.0 | 12.312 h |
| November | 32.1°C24.5°C | 24.5°C | 117 | 18.4 | 12.412 h |
| December | 30.2°C24.0°C | 24.0°C | 253 | 27.5 | 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
August in nearby cities
- Bangil in AugustIndonesia · 20 kmHigh 31.8°C · Low 21.3°C · 3.7 mm rain
- Surabaya in AugustIndonesia · 22 kmHigh 31.5°C · Low 23.9°C · 6.4 mm rain
- Pasuruan in AugustIndonesia · 30 kmHigh 30.8°C · Low 21.9°C · 3.5 mm rain
- Mojokerto in AugustIndonesia · 31 kmHigh 32.8°C · Low 21.3°C · 14 mm rain
- Kebomas in AugustIndonesia · 33 kmHigh 31.2°C · Low 22.8°C · 6.4 mm rain
- Lawang in AugustIndonesia · 43 kmHigh 30.0°C · Low 19.0°C · 10 mm rain
- Bangkalan in AugustIndonesia · 45 kmHigh 30.6°C · Low 24.6°C · 6.5 mm rain
- Singosari in AugustIndonesia · 50 kmHigh 29.4°C · Low 19.3°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 Sidoarjo) is explained once on the Sidoarjo year overview and on the Sources, method and limits page.
Bangil lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.