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Sungai Petani, Malaysia climate
Af Tropical rainforest
Sungai Petani has a remarkably steady tropical climate (Tropical rainforest, Köppen Af). The hottest month is March with an average daily high near 33°C, while the coldest is October averaging around 24°C at night. Precipitation totals about 2306 mm a year and is strongly seasonal — October alone averages 325 mm while January barely receives 76 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)Sungai Petani climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 33 | 32 | 32 | 32 | 32 | 31 | 31 | 31 | 31 | 31 |
| Avg temp (°C) | 28 | 28 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 76 | 82 | 151 | 179 | 239 | 166 | 186 | 229 | 298 | 325 | 248 | 128 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 32 | 33 | 32 | 32 | 32 |
| Avg temp (°C) | 28 | 28 | 29 | 29 | 29 | 28 |
| Avg low (°C) | 24 | 24 | 25 | 25 | 25 | 25 |
| Precipitation (mm) | 76 | 82 | 151 | 179 | 239 | 166 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 32 | 31 | 31 | 31 | 31 | 31 |
| Avg temp (°C) | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 25 | 24 | 24 | 24 | 24 | 24 |
| Precipitation (mm) | 186 | 229 | 298 | 325 | 248 | 128 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 63 | 67 | 75 | 83 | 81 | 83 | 85 | 87 | 87 | 85 | 80 |
| Relative humidity (%) | 77 | 76 | 77 | 79 | 79 | 78 | 78 | 79 | 80 | 81 | 81 | 80 |
| Wind speed (km/h) | 11.6 | 10.3 | 9.1 | 8.1 | 8.1 | 8.5 | 8.5 | 9.0 | 9.1 | 9.9 | 10.3 | 12.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 63 | 67 | 75 | 83 | 81 |
| Relative humidity (%) | 77 | 76 | 77 | 79 | 79 | 78 |
| Wind speed (km/h) | 11.6 | 10.3 | 9.1 | 8.1 | 8.1 | 8.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 83 | 85 | 87 | 87 | 85 | 80 |
| Relative humidity (%) | 78 | 79 | 80 | 81 | 81 | 80 |
| Wind speed (km/h) | 8.5 | 9.0 | 9.1 | 9.9 | 10.3 | 12.4 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Penang Intl, a weather station, about 45 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.