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Cilacap, Indonesia climate
Aw Tropical savanna (dry winter)
Cilacap has a remarkably steady tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 32°C, while the coldest is August averaging around 23°C at night. Precipitation totals about 1833 mm a year and is strongly seasonal — December alone averages 259 mm while August barely receives 25 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Cilacap climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 32 | 31 | 30 | 29 | 29 | 29 | 30 | 31 | 31 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 25 | 25 | 24 | 23 | 23 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 216 | 202 | 172 | 176 | 153 | 98 | 59 | 25 | 58 | 176 | 240 | 259 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 32 | 32 | 31 | 30 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 28 | 27 |
| Avg low (°C) | 24 | 24 | 24 | 25 | 25 | 24 |
| Precipitation (mm) | 216 | 202 | 172 | 176 | 153 | 98 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 29 | 29 | 29 | 30 | 31 | 31 |
| Avg temp (°C) | 26 | 26 | 26 | 27 | 28 | 28 |
| Avg low (°C) | 23 | 23 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 59 | 25 | 58 | 176 | 240 | 259 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 89 | 88 | 84 | 80 | 64 | 57 | 51 | 50 | 59 | 73 | 85 | 89 |
| Relative humidity (%) | 87 | 88 | 88 | 89 | 89 | 89 | 88 | 86 | 84 | 84 | 87 | 88 |
| Wind speed (km/h) | 5.4 | 5.0 | 4.9 | 5.1 | 6.1 | 6.5 | 7.5 | 8.2 | 8.7 | 8.2 | 6.9 | 6.2 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 89 | 88 | 84 | 80 | 64 | 57 |
| Relative humidity (%) | 87 | 88 | 88 | 89 | 89 | 89 |
| Wind speed (km/h) | 5.4 | 5.0 | 4.9 | 5.1 | 6.1 | 6.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 50 | 59 | 73 | 85 | 89 |
| Relative humidity (%) | 88 | 86 | 84 | 84 | 87 | 88 |
| Wind speed (km/h) | 7.5 | 8.2 | 8.7 | 8.2 | 6.9 | 6.2 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Cilacap, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.