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Current weather in Johannesburg is clear sky.

Where can I find the hourly weather forecast for Johannesburg?

This page shows hourly weather forecast for Johannesburg, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Johannesburg updated regularly?

Weather data for Johannesburg is updated regularly with the latest available observations and forecasts.

Now · 11:14 AM

Johannesburg Weather & Hourly Forecast

United States · California · 93528

77°F

Sunny

Feels like: 72°F

💧 Humidity 25% 🌡 Pressure 29.91 inHg 💨 Wind 4 mph 👁 Visibility 30.5 mi ☁ Clouds 0% ☀️ UV index 5.6 · Moderate 🌅 Sunrise 6:37 AM 🌇 Sunset 6:48 PM

Hourly Forecast for Johannesburg

Today

12:00 PM

Sunny

79° 💧 None 💨 5 mph H 22%29.91 inHg

3:00 PM

Sunny

83° 💧 None 💨 4 mph H 17%29.83 inHg

6:00 PM

Sunny

82° 💧 None 💨 4 mph H 17%29.80 inHg

9:00 PM

Clear night

75° 💧 None 💨 3 mph H 26%29.85 inHg

Tomorrow

12:00 AM

Clear night

71° 💧 None 💨 1 mph H 32%29.88 inHg

3:00 AM

Clear night

69° 💧 None 💨 1 mph H 32%29.88 inHg

6:00 AM

Clear night

67° 💧 None 💨 2 mph H 35%29.88 inHg

9:00 AM

Sunny

77° 💧 None 💨 4 mph H 24%29.94 inHg

12:00 PM

Sunny

85° 💧 None 💨 7 mph H 17%29.91 inHg

3:00 PM

Sunny

88° 💧 None 💨 6 mph H 13%29.85 inHg

6:00 PM

Sunny

86° 💧 None 💨 6 mph H 12%29.83 inHg

9:00 PM

Clear night

79° 💧 None 💨 4 mph H 18%29.85 inHg

Thursday

12:00 AM

Clear night

75° 💧 None 💨 0 mph H 22%29.88 inHg

3:00 AM

Clear night

71° 💧 None 💨 1 mph H 25%29.88 inHg

6:00 AM

Clear night

69° 💧 None 💨 2 mph H 27%29.88 inHg

9:00 AM

Sunny

80° 💧 None 💨 2 mph H 19%29.94 inHg

Today

12:00 PM

Sunny

79° 💧 None 💨 5 mph H 22%29.91 inHg

1:00 PM

Sunny

81° 💧 None 💨 4 mph H 20%29.88 inHg

2:00 PM

Sunny

82° 💧 None 💨 4 mph H 18%29.85 inHg

3:00 PM

Sunny

83° 💧 None 💨 4 mph H 17%29.83 inHg

4:00 PM

Sunny

83° 💧 None 💨 3 mph H 16%29.83 inHg

5:00 PM

Sunny

83° 💧 None 💨 4 mph H 17%29.83 inHg

6:00 PM

Sunny

82° 💧 None 💨 4 mph H 17%29.80 inHg

7:00 PM

Clear night

80° 💧 None 💨 2 mph H 19%29.83 inHg

8:00 PM

Clear night

78° 💧 None 💨 2 mph H 21%29.83 inHg

9:00 PM

Clear night

75° 💧 None 💨 3 mph H 26%29.85 inHg

10:00 PM

Clear night

74° 💧 None 💨 1 mph H 30%29.85 inHg

11:00 PM

Clear night

73° 💧 None 💨 1 mph H 32%29.88 inHg

Tomorrow

12:00 AM

Clear night

71° 💧 None 💨 1 mph H 32%29.88 inHg

1:00 AM

Clear night

71° 💧 None 💨 2 mph H 32%29.88 inHg

2:00 AM

Clear night

70° 💧 None 💨 2 mph H 32%29.88 inHg

3:00 AM

Clear night

69° 💧 None 💨 1 mph H 32%29.88 inHg

4:00 AM

Clear night

68° 💧 None 💨 2 mph H 32%29.88 inHg

5:00 AM

Clear night

67° 💧 None 💨 2 mph H 34%29.88 inHg

6:00 AM

Clear night

67° 💧 None 💨 2 mph H 35%29.88 inHg

7:00 AM

Sunny

66° 💧 None 💨 2 mph H 35%29.91 inHg

8:00 AM

Sunny

72° 💧 None 💨 4 mph H 29%29.91 inHg

9:00 AM

Sunny

77° 💧 None 💨 4 mph H 24%29.94 inHg

10:00 AM

Sunny

81° 💧 None 💨 6 mph H 21%29.94 inHg

11:00 AM

Sunny

83° 💧 None 💨 6 mph H 19%29.94 inHg

12:00 PM

Sunny

85° 💧 None 💨 7 mph H 17%29.91 inHg

1:00 PM

Sunny

87° 💧 None 💨 7 mph H 16%29.88 inHg

2:00 PM

Sunny

88° 💧 None 💨 7 mph H 15%29.88 inHg

3:00 PM

Sunny

88° 💧 None 💨 6 mph H 13%29.85 inHg

4:00 PM

Sunny

88° 💧 None 💨 5 mph H 13%29.83 inHg

5:00 PM

Sunny

87° 💧 None 💨 5 mph H 12%29.83 inHg

6:00 PM

Sunny

86° 💧 None 💨 6 mph H 12%29.83 inHg

7:00 PM

Clear night

82° 💧 None 💨 3 mph H 15%29.83 inHg

8:00 PM

Clear night

81° 💧 None 💨 4 mph H 17%29.85 inHg

9:00 PM

Clear night

79° 💧 None 💨 4 mph H 18%29.85 inHg

10:00 PM

Clear night

78° 💧 None 💨 3 mph H 20%29.88 inHg

11:00 PM

Clear night

77° 💧 None 💨 1 mph H 21%29.88 inHg

Thursday

12:00 AM

Clear night

75° 💧 None 💨 0 mph H 22%29.88 inHg

1:00 AM

Clear night

74° 💧 None 💨 0 mph H 23%29.88 inHg

2:00 AM

Clear night

72° 💧 None 💨 0 mph H 24%29.88 inHg

3:00 AM

Clear night

71° 💧 None 💨 1 mph H 25%29.88 inHg

4:00 AM

Clear night

71° 💧 None 💨 1 mph H 25%29.88 inHg

5:00 AM

Clear night

70° 💧 None 💨 1 mph H 26%29.88 inHg

6:00 AM

Clear night

69° 💧 None 💨 2 mph H 27%29.88 inHg

7:00 AM

Sunny

69° 💧 None 💨 2 mph H 27%29.91 inHg

8:00 AM

Sunny

74° 💧 None 💨 2 mph H 24%29.91 inHg

9:00 AM

Sunny

80° 💧 None 💨 2 mph H 19%29.94 inHg

10:00 AM

Sunny

83° 💧 None 💨 2 mph H 16%29.94 inHg

11:00 AM

Sunny

86° 💧 None 💨 4 mph H 14%29.91 inHg

12:00 PM

Sunny

88° 💧 None 💨 5 mph H 12%29.91 inHg

1:00 PM

Sunny

90° 💧 None 💨 6 mph H 11%29.88 inHg

2:00 PM

Sunny

91° 💧 None 💨 8 mph H 10%29.85 inHg

3:00 PM

Sunny

91° 💧 None 💨 10 mph H 10%29.85 inHg

4:00 PM

Sunny

90° 💧 None 💨 8 mph H 9%29.83 inHg

5:00 PM

Sunny

90° 💧 None 💨 7 mph H 10%29.80 inHg

6:00 PM

Sunny

89° 💧 None 💨 8 mph H 11%29.80 inHg

7:00 PM

Clear night

85° 💧 None 💨 5 mph H 13%29.80 inHg

8:00 PM

Clear night

82° 💧 None 💨 6 mph H 15%29.83 inHg

9:00 PM

Clear night

80° 💧 None 💨 7 mph H 19%29.85 inHg

10:00 PM

Clear night

78° 💧 None 💨 4 mph H 21%29.85 inHg

11:00 PM

Clear night

76° 💧 None 💨 3 mph H 23%29.85 inHg

Friday

12:00 AM

Clear night

74° 💧 None 💨 3 mph H 25%29.85 inHg

1:00 AM

Clear night

73° 💧 None 💨 2 mph H 26%29.88 inHg

2:00 AM

Clear night

72° 💧 None 💨 2 mph H 27%29.88 inHg

3:00 AM

Mostly clear night

71° 💧 None 💨 2 mph H 28%29.88 inHg

4:00 AM

Clear night

70° 💧 None 💨 2 mph H 29%29.88 inHg

5:00 AM

Clear night

69° 💧 None 💨 2 mph H 31%29.88 inHg

8:00 AM

Sunny

73° 💧 None 💨 3 mph H 29%29.91 inHg

11:00 AM

Mostly sunny

85° 💧 None 💨 6 mph H 18%29.91 inHg

2:00 PM

Sunny

91° 💧 None 💨 10 mph H 12%29.85 inHg

5:00 PM

Partly cloudy

89° 💧 None 💨 14 mph H 12%29.80 inHg

8:00 PM

Clear night

80° 💧 None 💨 12 mph H 20%29.85 inHg

11:00 PM

Mostly cloudy night

74° 💧 None 💨 7 mph H 24%29.85 inHg

Saturday

2:00 AM

Partly cloudy night

69° 💧 None 💨 4 mph H 32%29.85 inHg

5:00 AM

Mostly clear night

66° 💧 None 💨 2 mph H 36%29.85 inHg

8:00 AM

Overcast

68° 💧 None 💨 3 mph H 32%29.88 inHg

11:00 AM

Partly cloudy

82° 💧 None 💨 6 mph H 18%29.88 inHg

2:00 PM

Mostly cloudy

88° 💧 None 💨 11 mph H 13%29.83 inHg

5:00 PM

Overcast

88° 💧 None 💨 17 mph H 12%29.77 inHg

8:00 PM

Mostly clear night

79° 💧 None 💨 11 mph H 20%29.83 inHg

11:00 PM

Clear night

74° 💧 None 💨 7 mph H 21%29.88 inHg

Sunday

2:00 AM

Mostly clear night

69° 💧 None 💨 6 mph H 31%29.88 inHg

5:00 AM

Mostly cloudy night

66° 💧 None 💨 5 mph H 36%29.85 inHg

8:00 AM

Mostly cloudy

69° 💧 None 💨 6 mph H 36%29.91 inHg

11:00 AM

Mostly cloudy

81° 💧 None 💨 14 mph H 16%29.88 inHg

2:00 PM

Overcast

86° 💧 None 💨 18 mph H 10%29.83 inHg

5:00 PM

Mostly sunny

83° 💧 None 💨 19 mph H 18%29.77 inHg

8:00 PM

Clear night

74° 💧 None 💨 12 mph H 29%29.80 inHg

11:00 PM

Clear night

68° 💧 None 💨 12 mph H 35%29.83 inHg

Monday

5:00 AM

Clear night

67° 💧 None 💨 13 mph H 40%29.85 inHg

11:00 AM

Sunny

59° 💧 None 💨 6 mph H 35%29.83 inHg

5:00 PM

Sunny

74° 💧 None 💨 7 mph H 19%29.85 inHg

11:00 PM

Clear night

81° 💧 None 💨 9 mph H 13%29.74 inHg

Tuesday

5:00 AM

Clear night

65° 💧 None 💨 3 mph H 32%29.83 inHg

11:00 AM

Sunny

61° 💧 None 💨 0 mph H 34%29.83 inHg

5:00 PM

Sunny

81° 💧 None 💨 2 mph H 14%29.85 inHg

11:00 PM

Clear night

88° 💧 None 💨 8 mph H 8%29.71 inHg

Wednesday

5:00 AM

Clear night

73° 💧 None 💨 4 mph H 15%29.74 inHg

11:00 AM

Partly cloudy

66° 💧 None 💨 4 mph H 21%29.74 inHg

5:00 PM

Partly cloudy

82° 💧 None 💨 3 mph H 14%29.80 inHg

11:00 PM

Mostly clear night

87° 💧 None 💨 9 mph H 12%29.65 inHg

Thursday

5:00 AM

Clear night

71° 💧 None 💨 7 mph H 18%29.74 inHg

11:00 AM

Sunny

60° 💧 None 💨 4 mph H 35%29.74 inHg

5:00 PM

Sunny

76° 💧 None 💨 8 mph H 22%29.74 inHg

11:00 PM

Clear night

78° 💧 None 💨 19 mph H 18%29.65 inHg

Friday

5:00 AM

Clear night

64° 💧 None 💨 10 mph H 30%29.77 inHg

11:00 AM

Sunny

54° 💧 None 💨 5 mph H 48%29.80 inHg

5:00 PM

Mostly sunny

71° 💧 None 💨 5 mph H 24%29.85 inHg

11:00 PM

Clear night

79° 💧 None 💨 10 mph H 16%29.74 inHg

Saturday

5:00 AM

Clear night

63° 💧 None 💨 4 mph H 38%29.83 inHg

11:00 AM

Sunny

60° 💧 None 💨 3 mph H 37%29.83 inHg

5:00 PM

Sunny

80° 💧 None 💨 9 mph H 13%29.91 inHg

11:00 PM

Clear night

84° 💧 None 💨 6 mph H 9%29.80 inHg

Sunday

5:00 AM

Clear night

71° 💧 None 💨 3 mph H 12%29.88 inHg

11:00 AM

Sunny

66° 💧 None 💨 7 mph H 9%29.91 inHg

5:00 PM

Sunny

81° 💧 None 💨 4 mph H 6%29.97 inHg

11:00 PM

Clear night

86° 💧 None 💨 6 mph H 8%29.85 inHg

Monday

5:00 AM

Clear night

72° 💧 None 💨 3 mph H 17%29.94 inHg

11:00 AM

Sunny

66° 💧 None 💨 5 mph H 16%29.94 inHg

5:00 PM

Sunny

85° 💧 None 💨 6 mph H 10%29.97 inHg

11:00 PM

Clear night

90° 💧 None 💨 9 mph H 9%29.85 inHg

Tuesday

5:00 AM

Clear night

75° 💧 None 💨 5 mph H 16%29.91 inHg

11:00 AM

Sunny

69° 💧 None 💨 5 mph H 17%29.91 inHg

5:00 PM

Sunny

87° 💧 None 💨 7 mph H 11%29.97 inHg

11:00 PM

Clear night

92° 💧 None 💨 7 mph H 10%29.83 inHg

In Johannesburg and, more broadly, across the state of California: Tonight, expect mostly cloudy skies with mild to warm temperatures ranging from 73 to 80 degrees Fahrenheit. Winds will be light, coming from the west at around 9 mph, with occasional gusts reaching up to 16 mph. No precipitation is forecast for the evening and the early night hours, so outdoor plans should be comfortable. Temperatures may gradually cool into the lower 70s later in the night, but overall, conditions will remain mild. The wind remains gentle, providing a slight breeze without causing concern. Overall, it should be a pleasant evening with no weather-related disruptions.

15-Day Weather Outlook for Johannesburg

TomorrowTomorrow

Sunny 88°/66° 💧 None 💨 7 mph

Thursday, Sep 24Thu Sep 24

Sunny 91°/69° 💧 None 💨 10 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 91°/69° 💧 None 💨 14 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 88°/66° 💧 None 💨 17 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 86°/66° 💧 None 💨 19 mph

Monday, Sep 28Mon Sep 28

Sunny 81°/59° 💧 None 💨 13 mph

Tuesday, Sep 29Tue Sep 29

Sunny 88°/61° 💧 None 💨 8 mph

Wednesday, Sep 30Wed Sep 30

Partly cloudy 87°/66° 💧 None 💨 9 mph

Thursday, Oct 1Thu Oct 1

Sunny 78°/60° 💧 None 💨 19 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 79°/54° 💧 None 💨 10 mph

Saturday, Oct 3Sat Oct 3

Sunny 84°/60° 💧 None 💨 9 mph

Sunday, Oct 4Sun Oct 4

Sunny 86°/66° 💧 None 💨 7 mph

Monday, Oct 5Mon Oct 5

Sunny 90°/66° 💧 None 💨 9 mph

Tuesday, Oct 6Tue Oct 6

Sunny 92°/69° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Johannesburg

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Johannesburg

Hourly forecast · Updated every 2 hours

Moderate

Nearest forecast value 12:00 PM

PM2.5 Fine particles Moderate 45,2µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Moderate 67,4µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 95,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Fair 63,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Sensitive people should reduce strenuous and prolonged outdoor exertion.

UV & HEALTH

UV, Sun & Health Outlook in Johannesburg

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,6High 😐Moderate

Tomorrow UV 7,6High ⚠️Very poor

Thursday UV 7,4High ⚠️Very poor

Friday UV 7,4High 😷Poor

Saturday UV 7,0High 😐Moderate

Sunday UV 7,0High —Unavailable

Monday UV 7,0High —Unavailable

Hourly UV index today

12:00 PMUV 7,1 1:00 PMUV 7,6 2:00 PMUV 6,7 3:00 PMUV 4,9 4:00 PMUV 2,8 5:00 PMUV 1,1 6:00 PMUV 0,3 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Caution for sensitive people

People with respiratory or cardiovascular conditions should reduce prolonged outdoor exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed. Dry air can increase hydration needs.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Johannesburg

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · JOHANNESBURG, CALIFORNIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 4:00 AM–5:00 AM.

100/100Best-hour score

BEST TIME TONIGHT 4:00 AM–5:00 AM Astronomical darkness: 8:12 PM–5:14 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 89% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 70° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min75%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Johannesburg were last refreshed today at 11:14 AM. The current forecast period extends through 24/09/2026 at 9:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.