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Weather in Johannesburg — today

Tomorrow Day after tomorrow 3 days Week 14 days Month forecast Weather archive

Now in Johannesburg

☁️

+18°

Overcast

Feels like +17° · humidity 55%

Today 9.9: +18° / +9°

🕐 14:25

Wind

4 km/h

UV index

Air (AQI)

71 · Poor

Precipitation

Humidity

55%

Pressure

1026 hPa

Sunrise / sunset

06:12 / 17:58

👕 What to wear today

Comfortable — a T-shirt, a light sweater for the evening.

Weather for an activity:

🎣 fishing 🏃 a run 📸 a photo shoot 🚶 a walk

Detailed weather information for Johannesburg

Today, 9 September, Wednesday, in Johannesburg (Republic of South Africa): partly cloudy, moderately warm. During the day the air will warm up to +18°, at night around +9°. UV is high (index 6) — sunscreen will come in handy in the sun. Wind up to 9 km/h. No precipitation expected, you won't need an umbrella. A T-shirt is comfortable during the day, but take a light sweater or windbreaker for the evening. The sun will rise at 06:12 and set at 17:58 — daylight lasts 12 hours.

Hourly weather in Johannesburg

💧 The bars at the bottom show the hourly precipitation probability. Shaded areas of the chart are the dark hours (before sunrise 🌅 and after sunset 🌇).

Weather in Johannesburg for 14 days

Tap a day to expand it by time of day and open the full forecast. The bar shows the range from the night low (left) to the day high (right).

▶

Today 9.9

☁️

💧 2%

+9° +18°

Morning

☁️

+12°

Day

☁️

+18°

Evening

🌇

+16°

Night

🌙

+9°

Overcast · precipitation 2% · wind up to 9 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Tomorrow 10.9

⛅

+9° +20°

Morning

☀️

+13°

Day

⛅

+20°

Evening

🌇

+17°

Night

🌙

+9°

Partly cloudy · precipitation 0% · wind up to 7 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Fri 11.9

☁️

+11° +21°

Morning

☁️

+15°

Day

☁️

+21°

Evening

🌇

+19°

Night

🌙

+11°

Overcast · precipitation 0% · wind up to 8 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Sat 12.9

🌤️

+11° +20°

Morning

🌤️

+14°

Day

🌤️

+20°

Evening

🌇

+18°

Night

🌙

+11°

Mostly clear · precipitation 0% · wind up to 14 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Sun 13.9

☁️

+10° +22°

Morning

☁️

+14°

Day

☁️

+22°

Evening

🌇

+19°

Night

🌙

+10°

Overcast · precipitation 0% · wind up to 9 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Mon 14.9

☁️

💧 25%

+12° +22°

Morning

☁️

+16°

Day

☁️

+22°

Evening

🌇

+20°

Night

🌙

+12°

Overcast · precipitation 25% · wind up to 16 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Tue 15.9

🌦️

💧 68%

+10° +15°

Morning

🌦️

+12°

Day

🌦️

+15°

Evening

🌇

+14°

Night

🌙

+10°

Drizzle · precipitation 68% · wind up to 17 km/h.
🧥 Cool. You'll need a warm jacket; it can get chilly in the evening.

▶

Wed 16.9

🌦️

💧 26%

+11° +20°

Morning

🌦️

+14°

Day

🌦️

+20°

Evening

🌇

+18°

Night

🌙

+11°

Drizzle · precipitation 26% · wind up to 10 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Thu 17.9

☁️

💧 31%

+11° +20°

Morning

☁️

+14°

Day

☁️

+20°

Evening

🌇

+18°

Night

🌙

+11°

Overcast · precipitation 31% · wind up to 10 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Fri 18.9

🌦️

💧 29%

+9° +18°

Morning

🌦️

+12°

Day

🌦️

+18°

Evening

🌇

+16°

Night

🌙

+9°

Drizzle · precipitation 29% · wind up to 8 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Sat 19.9

🌦️

💧 16%

+9° +18°

Morning

🌦️

+12°

Day

🌦️

+18°

Evening

🌇

+16°

Night

🌙

+9°

Drizzle · precipitation 16% · wind up to 10 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Sun 20.9

☀️

💧 14%

+11° +22°

Morning

☀️

+15°

Day

☀️

+22°

Evening

🌇

+19°

Night

🌙

+11°

Clear · precipitation 14% · wind up to 7 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Mon 21.9

☀️

💧 9%

+14° +23°

Morning

☀️

+17°

Day

☀️

+23°

Evening

🌇

+21°

Night

🌙

+14°

Clear · precipitation 9% · wind up to 15 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

▶

Tue 22.9

☀️

💧 8%

+12° +23°

Morning

☀️

+16°

Day

☀️

+23°

Evening

🌇

+20°

Night

🌙

+12°

Clear · precipitation 8% · wind up to 17 km/h.
🙂 Mild, pleasant weather. A light sweater will come in handy in the evening.

🗺️ Precipitation radar

Precipitation radar (RainViewer) over a clean base map — updates every 5–10 minutes. Colours show nearby precipitation; if there is none, the map is simply clear — that is normal. Zoom with + / −.

Rain intensity:lightmoderateheavy

🎯 What to do in this weather — indices of the day

Comfort score from 0 (bad) to 100 (excellent), calculated from the day's weather. For “rain” and “UV” a percentage/risk level is shown.

🏃 Running

92 / 100

comfort for running · Excellent

🧴 UV

54%

high · moderate

☂️ Rain

unlikely · low

✨ Stars

87 / 100

evening visibility · Excellent

🧺 Laundry drying

55 / 100

will dry outside · Average

🚗 Car wash

93 / 100

no rain expected · Excellent

🌫️ Air quality

Poor air

European AQI

PM2.5: 26PM10: 27O₃: 141NO₂: 15

People with allergies or asthma should reduce time outdoors.

🌅 Sun, moon and sea

Sunrise

06:12

Sunset

17:58

Golden hour

17:27

Daylight

12 h (+2 min vs yesterday)

Johannesburg climate by month

Long-term averages. Hover over a bar for details. The forecast for a specific month is a combination of the climate normal and the model forecast for the coming weeks.

+25°

+14°

Jan

+24°

+14°

Feb

+23°

+13°

Mar

+21°

+10°

Apr

+19°

+6°

May

+16°

+3°

Jun

+16°

+2°

Jul

+20°

+5°

Aug

+24°

+9°

Sep

+25°

+11°

Oct

+24°

+12°

Nov

+24°

+14°

Dec

swipe sideways →

Bar color shows temperature:frostcoolcomfortablewarmhot— best months to visit

Month	Day	Night	Precipitation	What to pack and what makes the month notable (events, nuances)
January	+25°	+14°	129 mm	One of the best times to visit: +25° by day, fresh nights. It's a rainy month (129 mm) — an umbrella is a must. 😊 light summer clothing.
February	+24°	+14°	110 mm	Ideal weather: +24° daytime — neither hot nor cold. Frequent rain (110 mm over the month) — keep indoor backup plans. 😊 light summer clothing.
March	+23°	+13°	87 mm	The most pleasant season: +23° by day, comfortable all day long. One of the wettest months (87 mm): downpours can derail plans. 🙂 a sweater for the evening.
April	+21°	+10°	45 mm	One of the best times to visit: +21° by day, fresh nights. 🙂 a sweater for the evening.
May	+19°	+6°	17 mm	Ideal weather: +19° daytime — neither hot nor cold. 🙂 a sweater for the evening.
June	+16°	+3°	8 mm	Cool weather: +16° by day, noticeably colder in the evening. 🙂 a sweater for the evening. This is the coldest month of the year.
July	+16°	+2°	3 mm	Cool: around +16° by day, you'll need a warm layer. 🙂 a sweater for the evening. One of the driest months — rain is very unlikely.
August	+20°	+5°	10 mm	Ideal weather: +20° daytime — neither hot nor cold. 🙂 a sweater for the evening. Weather-wise, one of the three best months to visit.
September	+24°	+9°	22 mm	The most pleasant season: +24° by day, comfortable all day long. 🙂 a sweater for the evening. Weather-wise, one of the three best months to visit.
October	+25°	+11°	73 mm	One of the best times to visit: +25° by day, fresh nights. It's a rainy month (73 mm) — an umbrella is a must. 😊 light summer clothing. This is the hottest month of the year in Johannesburg.
November	+24°	+12°	97 mm	Ideal weather: +24° daytime — neither hot nor cold. Frequent rain (97 mm over the month) — keep indoor backup plans. 😊 light summer clothing.
December	+24°	+14°	132 mm	The most pleasant season: +24° by day, comfortable all day long. One of the wettest months (132 mm): downpours can derail plans. 😊 light summer clothing. Statistically the wettest month of the year.

When to visit Johannesburg

✅ Recommended time to visit

🌟 Best time: August, September, October

Daytime air+20…+25°

Precipitationoften

Why: comfortable +20…+25° by day, little rain.

⚠️ Doable, with caveats

🌤️ Shoulder season: January, February, March, April, May, November

Daytime air+19…+25°

Precipitationoften

Why: noticeable rain risk (17–129 mm/month) — pack an umbrella and backup plans.

🔴 Not the best time

❄️ Cold season: June, July, December

Daytime air+16…+24°

Precipitationoften

Why: cold and dark (+16…+24° by day, 11 h of daylight) — only if frost and short days don’t put you off.

Bottom line: the best time to visit Johannesburg is August – October, and the most comfortable months are August, September, October. The toughest months to visit are June, July, December: cool and damp.