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Benoni, South Africa climate

Cwa Monsoon-influenced humid subtropical

Benoni has a mildly seasonal warm-temperate climate (Monsoon-influenced humid subtropical, Köppen Cwa). The hottest month is January with an average daily high near 83°F, while the coldest is July averaging around 40°F at night. Precipitation totals about 31 inches a year and is strongly seasonal — November alone averages 5.7 inches while June barely receives 0.10 inches.

☀️ Summers
Warm
Highs near 83°F in January.
About 16 days a year above 90 °F
❄️ Winters
Cool
Lows near 40°F in July.
About 2 freezing nights a year
🌧️ Rain
Moderate rainfall
About 31 in of rain a year.
Wettest in November
Sky & trend
Fairly sunny
More sun than cloud through the year.
+1.7 °F vs 50 years ago

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 °F 40°60°80° PRECIPITATION (in) 036 JanAprJulOct

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts 0%25%50%75%100% JanAprJulOct Cloudy Partly Cloudy Clear

Benoni climate normals (1991–2020)

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)838381777368687480838383
Avg temp (°F)727270656055546066697072
Avg low (°F)616158534742404552565860
Precipitation (in)5.34.94.11.90.30.10.20.10.63.05.74.8
Jan – JunJanFebMarAprMayJun
Avg high (°F)838381777368
Avg temp (°F)727270656055
Avg low (°F)616158534742
Precipitation (in)5.34.94.11.90.30.1
Jul – DecJulAugSepOctNovDec
Avg high (°F)687480838383
Avg temp (°F)546066697072
Avg low (°F)404552565860
Precipitation (in)0.20.10.63.05.74.8

How often — frequency of weather events

JanFebMarAprMayJunJulAugSepOctNovDec
Days with measurable rain (days)1410107310.81381315
Days with high ≥ 90°F (days)220.80.10.9433
Days with low ≤ 32°F (days)0.00.10.50.90.40.10.1
Jan – JunJanFebMarAprMayJun
Days with measurable rain (days)141010731
Days with high ≥ 90°F (days)220.80.1
Days with low ≤ 32°F (days)0.00.10.5
Jul – DecJulAugSepOctNovDec
Days with measurable rain (days)0.81381315
Days with high ≥ 90°F (days)0.9433
Days with low ≤ 32°F (days)0.90.40.10.1

Sky & atmosphere

JanFebMarAprMayJunJulAugSepOctNovDec
Cloud cover (%)615750402520182129475865
Clear days (≤ 30% cloud)66101320222423191164
Partly cloudy days (30–70%)1213121187668121213
Cloudy days (≥ 70%)1310962212391215
Relative humidity (%)656464615454504440495763
Wind speed (mph)4.64.44.24.34.55.05.26.16.66.56.05.1
Jan – JunJanFebMarAprMayJun
Cloud cover (%)615750402520
Clear days (≤ 30% cloud)6610132022
Partly cloudy days (30–70%)1213121187
Cloudy days (≥ 70%)13109622
Relative humidity (%)656464615454
Wind speed (mph)4.64.44.24.34.55.0
Jul – DecJulAugSepOctNovDec
Cloud cover (%)182129475865
Clear days (≤ 30% cloud)2423191164
Partly cloudy days (30–70%)668121213
Cloudy days (≥ 70%)12391215
Relative humidity (%)504440495763
Wind speed (mph)5.26.16.66.56.05.1
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 24 years of daily observations at Pretoria/irene, a weather station, about 32 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 →