Benoni, South Africa experiences average highs of 23°C (73°F) and lows of 10°C (50°F) throughout the year. Rainfall is moderate, averaging about 8 rainy days per month. Sunshine is abundant, averaging about 10 hours per day. Average highs have cooled by 2.3°C (4.1°F) across the available records.
Benoni, South Africa Weather & Climate 2026
Monthly climate averages for Benoni, South Africa. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Apr–Oct 
Wetter season: Jan–Dec At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
7.6/10
Best: February, March, May, September, October
UV Index
7
High
Temperature 23°C / 10°C
Feels Like 21°C / 8°C
Rainy Days 8
Rainfall 65 mm
Sunshine 10 h
Humidity 59%
Wind Speed 17 km/h
Dew Point 8°C
Frost Days 2 days
Hottest Month
26°C
October
Avg Low12°C
Rain8days
Coldest Month
3°C
July
Avg High18°C
Rain1days
Driest Month
1days
June
Avg High18°C
Avg Low4°C
Windiest Month
21 km/h
September (Gusts 42)
Worst Time to Visit
Consider avoiding June, July, August due to less favorable weather conditions.
Sun Position
Sunrise 06:53
Daylight 10.5h
Sunset 17:24
Live conditions—
Benoni on the map · live conditions
Benoni, South Africa
- Continent
- Africa
- Country
- South Africa
- City
- Benoni
- Population
- 605.3K
- Coordinates
- -26.19°, 28.32°
Seasonal Breakdown
Spring
Sep–Nov
Avg High 26°C
Avg Low 12°C
Rain 8 days/mo
2/3 best months
Summer
Dec–Feb
Avg High 25°C
Avg Low 15°C
Rain 16 days/mo
1/3 best months
Autumn
Mar–May
Avg High 22°C
Avg Low 10°C
Rain 7 days/mo
2/3 best months
Winter
Jun–Aug
Avg High 19°C
Avg Low 4°C
Rain 1 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: 25°C / 15°C . Feb: 25°C / 15°C . Mar: 24°C / 14°C . Apr: 22°C / 11°C . May: 20°C / 7°C . Jun: 18°C / 4°C . Jul: 18°C / 3°C . Aug: 22°C / 6°C . Sep: 26°C / 10°C . Oct: 26°C / 12°C . Nov: 26°C / 14°C . Dec: 25°C / 15°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 141 mm. Feb: 134 mm. Mar: 77 mm. Apr: 75 mm. May: 20 mm. Jun: 5 mm. Jul: 4 mm. Aug: 3 mm. Sep: 15 mm. Oct: 62 mm. Nov: 104 mm. Dec: 135 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 70%. Feb: 73%. Mar: 68%. Apr: 68%. May: 60%. Jun: 54%. Jul: 48%. Aug: 42%. Sep: 40%. Oct: 50%. Nov: 62%. Dec: 69%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 16 km/h . Mar: 15 km/h . Apr: 16 km/h . May: 14 km/h . Jun: 16 km/h . Jul: 16 km/h . Aug: 19 km/h . Sep: 21 km/h . Oct: 20 km/h . Nov: 20 km/h . Dec: 19 km/h .
Sunshine
Sunshine
Sunshine: Jan: 11h. Feb: 10h. Mar: 10h. Apr: 9h. May: 10h. Jun: 10h. Jul: 10h. Aug: 10h. Sep: 11h. Oct: 11h. Nov: 11h. Dec: 10h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 10. Feb: UV 9. Mar: UV 8. Apr: UV 7. May: UV 6. Jun: UV 5. Jul: UV 5. Aug: UV 6. Sep: UV 8. Oct: UV 9. Nov: UV 9. Dec: UV 9.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Climate Trends
Average highs have cooled by 2.3°C (4.1°F) across the available records. Average rainfall is trending wetter by about 51 mm.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Sep 2025 · 25°C | Oct · 26°C |
| Coldest month | Jun 2025 · 3°C | Jul · 3°C |
| Wettest month | Feb 2025 · 268 mm | Jan · 141 mm |
| Windiest month | Sep 2025 · 21 km/h | Sep · 21 km/h |
Month-by-Month Weather Table
January
Good 
February best
Excellent March best
Excellent April
Good May best
Excellent June
Fair July
Fair August
Good September best
Excellent October best
Excellent November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 25°C / 15°C | 27°C / 15°C | 15days (141 mm) Wet | 10.9h Excellent | 70% Muggy | 9.5 Very High | Good | View Details |
| February best | 25°C / 15°C | 26°C / 15°C | 14days (134 mm) Wet | 10.2h Excellent | 73% Muggy | 8.6 Very High | Excellent | View Details |
| March best | 24°C / 14°C | 25°C / 13°C | 10days (77 mm) Wet | 10.2h Excellent | 68% Muggy | 8.2 Very High | Excellent | View Details |
| April | 22°C / 11°C | 21°C / 9°C | 8days (75 mm) Wet | 9.2h Good | 68% Muggy | 6.5 High | Good | View Details |
| May best | 20°C / 7°C | 17°C / 4°C | 3days (20 mm) Excellent | 9.6h Good | 60% Moderate | 5.5 High | Excellent | View Details |
| June | 18°C / 4°C | 14°C / 0°C | 1days (5 mm) Excellent | 9.5h Good | 54% Moderate | 5 Moderate | Fair | View Details |
| July | 18°C / 3°C | 14°C / -1°C | 1days (4 mm) Excellent | 9.6h Good | 48% Moderate | 5.2 High | Fair | View Details |
| August | 22°C / 6°C | 18°C / 2°C | 1days (3 mm) Excellent | 10.1h Excellent | 42% Moderate | 6.4 High | Good | View Details |
| September best | 26°C / 10°C | 22°C / 7°C | 3days (15 mm) Excellent | 10.7h Excellent | 40% Comfortable | 7.6 Very High | Excellent | View Details |
| October best | 26°C / 12°C | 24°C / 9°C | 8days (62 mm) Wet | 10.8h Excellent | 50% Moderate | 8.6 Very High | Excellent | View Details |
| November | 26°C / 14°C | 25°C / 12°C | 14days (104 mm) Wet | 10.7h Excellent | 62% Muggy | 9 Very High | Good | View Details |
| December | 25°C / 15°C | 26°C / 14°C | 18days (135 mm) Wet | 10.3h Excellent | 69% Muggy | 9.1 Very High | Good | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Benoni are February, March, May, September, October, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Benoni, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Benoni is October, with average daytime highs of 26°C (79°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Benoni is July, with average overnight lows of 3°C (37°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Benoni is January, averaging 141mm of precipitation across 15 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Benoni runs through December, January, February, November, with the heaviest rainfall in December. Based on 10-year averages for Benoni.
Benoni receives approximately 122 sunshine hours per year. The sunniest month is January with around 11 hours. Based on climate data for Benoni.
The least favorable months to visit Benoni are June, July, August, primarily due to less favorable weather conditions. For the best conditions, consider February, March, May, September, October instead.
The annual average UV index in Benoni is 7, classified as high. SPF 30+ sunscreen, sunglasses, and seeking shade between 10:00–16:00 are strongly recommended.
Average humidity in Benoni is 59%, classified as moderate. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Benoni rarely sees significant snowfall but does experience frost, averaging 2 frost days during the colder months.
Average wind speeds in Benoni are 17 km/h (11 mph). The windiest month is September with peak winds reaching 21 km/h (13 mph) (gusts up to 42 km/h / 26 mph).
Benoni averages 13 clear-sky days per month with overall cloud cover around 34%. The clearest skies occur in July.
The annual average dew point in Benoni is 8°C (46°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Benoni has a Subtropical Highland climate, classified as Cwb under the Köppen system. Temperate climates have mild winters and warm summers, with rainfall spread across the year and four distinct seasons.
The 'feels like' temperature in Benoni ranges from 8°C (46°F) to 21°C (70°F) on average. The 'feels like' temperature closely matches the actual temperature throughout most of the year.
June is not the best time to visit Benoni, with a climate score of 6.4/10. Consider visiting during February, March, May, September, October instead for better conditions.
For June in Benoni, pack Layered clothing, Light jacket, Comfortable walking shoes. With average highs of 18°C (64°F) and 1 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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