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Serang, Indonesia climate
As Tropical savanna (dry summer)
Serang has a remarkably steady tropical climate (Tropical savanna (dry summer), Köppen As). The hottest month is October with an average daily high near 91°F, while the coldest is February averaging around 75°F at night. Precipitation totals about 39 inches a year and is strongly seasonal — January alone averages 6.1 inches while August barely receives 0.97 inches.
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)Serang climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 88 | 89 | 90 | 90 | 89 | 89 | 90 | 91 | 91 | 90 | 88 |
| Avg temp (°F) | 81 | 81 | 82 | 82 | 82 | 82 | 81 | 81 | 82 | 83 | 82 | 82 |
| Avg low (°F) | 75 | 75 | 75 | 75 | 75 | 74 | 73 | 73 | 73 | 74 | 75 | 75 |
| Precipitation (in) | 6.1 | 5.7 | 4.5 | 3.6 | 3.0 | 1.8 | 1.9 | 1.0 | 1.5 | 2.3 | 3.5 | 3.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 88 | 88 | 89 | 90 | 90 | 89 |
| Avg temp (°F) | 81 | 81 | 82 | 82 | 82 | 82 |
| Avg low (°F) | 75 | 75 | 75 | 75 | 75 | 74 |
| Precipitation (in) | 6.1 | 5.7 | 4.5 | 3.6 | 3.0 | 1.8 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 89 | 90 | 91 | 91 | 90 | 88 |
| Avg temp (°F) | 81 | 81 | 82 | 83 | 82 | 82 |
| Avg low (°F) | 73 | 73 | 73 | 74 | 75 | 75 |
| Precipitation (in) | 1.9 | 1.0 | 1.5 | 2.3 | 3.5 | 3.8 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 89 | 90 | 84 | 80 | 68 | 61 | 56 | 51 | 58 | 74 | 87 | 91 |
| Relative humidity (%) | 85 | 86 | 85 | 84 | 83 | 82 | 80 | 78 | 76 | 77 | 80 | 83 |
| Wind speed (mph) | 6.4 | 5.9 | 5.5 | 4.9 | 4.6 | 4.6 | 4.5 | 4.5 | 4.4 | 4.5 | 4.9 | 6.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 89 | 90 | 84 | 80 | 68 | 61 |
| Relative humidity (%) | 85 | 86 | 85 | 84 | 83 | 82 |
| Wind speed (mph) | 6.4 | 5.9 | 5.5 | 4.9 | 4.6 | 4.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 56 | 51 | 58 | 74 | 87 | 91 |
| Relative humidity (%) | 80 | 78 | 76 | 77 | 80 | 83 |
| Wind speed (mph) | 4.5 | 4.5 | 4.4 | 4.5 | 4.9 | 6.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Serang, a weather station, about 2 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.