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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.

☀️ All year
Hot
Daytime highs near 33°C most of the year.
🌙 Nights
Stays warm
Even the coolest nights stay near 24°C.
🌧️ Rain
Very wet
About 2306 mm of rain a year.
Wettest in October
Sky & trend
Often grey
Overcast skies dominate much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures TEMPERATURE °C 20°30°40° PRECIPITATION (mm) 0165330 JanAprJulOct

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER) 0h2h3h4h6h J: ~3.9 hours of sun/dayF: ~4.3 hours of sun/dayM: ~3.9 hours of sun/dayA: ~3.0 hours of sun/dayM: ~2.1 hours of sun/dayJ: ~2.4 hours of sun/dayJ: ~2.1 hours of sun/dayA: ~1.9 hours of sun/dayS: ~1.6 hours of sun/dayO: ~1.5 hours of sun/dayN: ~1.8 hours of sun/dayD: ~2.4 hours of sun/day JFMAMJJASOND Sun hours per day (est.)

Sungai Petani climate normals (1991–2020)

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)323233323232323131313131
Avg temp (°C)282829292928282828282828
Avg low (°C)242425252525252424242424
Precipitation (mm)7682151179239166186229298325248128
Jan – JunJanFebMarAprMayJun
Avg high (°C)323233323232
Avg temp (°C)282829292928
Avg low (°C)242425252525
Precipitation (mm)7682151179239166
Jul – DecJulAugSepOctNovDec
Avg high (°C)323131313131
Avg temp (°C)282828282828
Avg low (°C)252424242424
Precipitation (mm)186229298325248128

Sky & atmosphere

JanFebMarAprMayJunJulAugSepOctNovDec
Cloud cover (%)676367758381838587878580
Relative humidity (%)777677797978787980818180
Wind speed (km/h)11.610.39.18.18.18.58.59.09.19.910.312.4
Jan – JunJanFebMarAprMayJun
Cloud cover (%)676367758381
Relative humidity (%)777677797978
Wind speed (km/h)11.610.39.18.18.18.5
Jul – DecJulAugSepOctNovDec
Cloud cover (%)838587878580
Relative humidity (%)787980818180
Wind speed (km/h)8.59.09.19.910.312.4
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.

How we build these numbers →