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South Africa weather

Weather in Mossel Bay for September 2025

Your guide to Mossel Bay weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Mossel Bay at the beginning of September is 17.3 °C. As the month progressed, temperatures tended to slightly decrease, reaching an average of 17.1 °C by the end of September.

    • Rain 🌧️

  • The climate of Mossel Bay in September is notably wet, with an average of 14 rainy days, and a total of 52.9 mm of precipitation.

    • More

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Average dry days
16
Dry days
Average rainy days
14
Rainy days
Average snowy days
0
Snow days
Average temperatures
17°/12°
Temperatures
Average wind speed
29 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Mossel Bay Weather September

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Sunny
17°
2
Sunny
21°
3
Partly cloudy
20°
4
Patchy rain possible
17°
5
Patchy rain possible
14°
6
Overcast
15°
7
Sunny
17°
8
Patchy rain possible
14°
9
Patchy rain possible
15°
10
Sunny
16°
11
Patchy rain possible
18°
12
Cloudy
20°
13
Sunny
18°
14
Patchy rain possible
18°
15
Partly cloudy
19°
16
Overcast
17°
17
Cloudy
18°
18
Moderate rain at times
19°
19
Moderate or heavy rain shower
14°
20
Patchy rain possible
15°
21
Sunny
16°
22
Sunny
18°
23
Sunny
21°
24
Sunny
20°
25
Patchy rain possible
18°
26
Patchy rain possible
19°
27
Patchy rain possible
18°
28
Overcast
17°
29
Patchy rain possible
15°
30
Light rain shower
13°

Temperatures trend during September in Mossel Bay

See the weather trend as well as the moving average line

September weather in Mossel Bay day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Sunny
Sunny
 17° /10° 0 mm 6
2 Sept. Sunny
Sunny
 21° /11° 0 mm 7
3 Sept. Partly cloudy
Partly cloudy
 20° /14° 0 mm 7
4 Sept. Patchy rain possible
Patchy rain possible
 17° /12° 0.3 mm 5
5 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 1 mm 4
6 Sept. Overcast
Overcast
 15° /9° 0 mm 5
7 Sept. Sunny
Sunny
 17° /10° 0 mm 6
8 Sept. Patchy rain possible
Patchy rain possible
 14° /10° 2.7 mm 4
9 Sept. Patchy rain possible
Patchy rain possible
 15° /9° 2 mm 5
10 Sept. Sunny
Sunny
 16° /11° 0 mm 6
11 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0.1 mm 5
12 Sept. Cloudy
Cloudy
 20° /12° 0 mm 6
13 Sept. Sunny
Sunny
 18° /12° 0 mm 6
14 Sept. Patchy rain possible
Patchy rain possible
 18° /12° 0.1 mm 5
15 Sept. Partly cloudy
Partly cloudy
 19° /11° 0 mm 6
16 Sept. Overcast
Overcast
 17° /13° 0 mm 5
17 Sept. Cloudy
Cloudy
 18° /12° 0 mm 5
18 Sept. Moderate rain at times
Moderate rain at times
 19° /11° 1.7 mm 5
19 Sept. Moderate or heavy rain shower
Moderate or heavy rain shower
 14° /11° 15.1 mm 4
20 Sept. Patchy rain possible
Patchy rain possible
 15° /11° 1.5 mm 5
21 Sept. Sunny
Sunny
 16° /12° 0 mm 6
22 Sept. Sunny
Sunny
 18° /14° 0 mm 6
23 Sept. Sunny
Sunny
 21° /13° 0.2 mm 7
24 Sept. Sunny
Sunny
 20° /16° 3.4 mm 7
25 Sept. Patchy rain possible
Patchy rain possible
 18° /14° 2.9 mm 5
26 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 0.5 mm 5
27 Sept. Patchy rain possible
Patchy rain possible
 18° /14° 0.5 mm 5
28 Sept. Overcast
Overcast
 17° /13° 5.8 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 15° /10° 0.9 mm 5
30 Sept. Light rain shower
Light rain shower
 13° /10° 14.2 mm 4
Next
Important Notice
Our weather forecast for Mossel Bay in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Mossel Bay forecast closer to your planned date for the most up-to-date weather information.
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Mossel Bay in September - FAQ

What are the expected maximum and minimum temperatures in Mossel Bay during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Mossel Bay during September?
Moderate rainfall is anticipated in Mossel Bay during September, with a total of 52.9 mm spread over approximately 14 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Mossel Bay during September?
The average wind speed in Mossel Bay during September is 29 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Mossel Bay

Explore the daily rainfall trends and prepare for Mossel Bays September weather 💧

UV exposure in Mossel Bay during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Get accurate weather forecasts for Mossel Bay, located at latitude -34.183 and longitude 22.146. Stay updated with localized weather information tailored for Mossel Bay.

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