Hermanus in september: average Weather, Temperature and Climate
Weather in Hermanus in september 2025
The weather in Hermanus in september comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather
Weather at 6am
58°F
Clear/Sunny
43% of time
31%
20%
7%
Weather at 12pm
65°F
Clear/Sunny
52% of time
25%
13%
9%
Weather at 6pm
59°F
Clear/Sunny
49% of time
31%
15%
6%
Weather at 3am
56°F
40%
25%
21%
12%
Evolution of daily average temperature and precipitation in Hermanus in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Hermanus in september.
The climate of Hermanus in september is good
The climate in september in Hermanus is quite dry (with 1.8in of rainfall over 2 days). This is better than the previous month since in august it receives an average of 3.1in of precipitation over 4 days.
The climate is fairly cold in that area this month, but it is livable when dressing hot. The high seasonal norm is 65°F. The minimum is 58°F. Thus, the mean temperature average in september in Hermanus is 61°F. Note that seasonal normals are in contrast with those observed in Hermanus in the month of september with a maximum record of 85°F in 2019 and a minimum record of 50°F in 2009. You can expect to have about 12 days with temperatures up to 65°F, or 40% of the month.
On average, in Hermanus, the days of september last 11:52. Sunrise is at 06:42 and sunset is at 18:34.
With a good climate, september is a good month to go in this locality in South Africa.
Seasonal average climate and temperature of Hermanus in september
Check below seasonal norms These datas are set from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 61°F | ||||
| Highest temperature | 65°F | ||||
| Lowest temperature | 58°F | ||||
| Highest record temperature | 85°F (2019) | ||||
| Lowest record temperature | 50°F (2009) | ||||
| Number of days at +65°F | 12 day(s) (40%) | ||||
| Sea temperature | |||||
| Average sea temperature | 61°F | ||||
| Lowest sea temperature | 59°F | ||||
| Highest sea temperature | 62°F | ||||
| Wind | |||||
| Wind speed | 27km/h | ||||
| Wind temperature | 56°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 1.8in | ||||
| Number of days with rainfall | 2 day(s) (7%) | ||||
| Record daily rainfall | 1.9in (2020) | ||||
| Other climate data | |||||
| Humidity | 79% | ||||
| Visibility | 9.75km | ||||
| Cloud cover | 33% | ||||
| UV index | 5 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:42 | ||||
| Time of sunset | 18:34 | ||||
| Length of day | 11:52 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Hermanus in september 2024:
54°F to 63°F
54°F to 70°F
58°F to 61°F
58°F to 59°F
54°F to 56°F
49°F to 58°F
49°F to 58°F
54°F to 56°F
50°F to 59°F
52°F to 61°F
54°F to 65°F
56°F to 59°F
54°F to 59°F
52°F to 61°F
56°F to 59°F
56°F to 61°F
52°F to 61°F
52°F to 59°F
54°F to 56°F
52°F to 61°F
52°F to 65°F
58°F to 68°F
56°F to 70°F
59°F to 65°F
56°F to 61°F
56°F to 61°F
58°F to 59°F
54°F to 61°F
52°F to 56°F
54°F to 56°F
Map: other cities in South Africa in september
Cities near Hermanus:
| Gansbaai in september | good weather |
| Pearly Beach in september | good weather |
| Agulhas National Park in september | good weather |
| Stellenbosch in september | good weather |
| Cape of Good Hope in september | good weather |
| Paarl in september | good weather |
| Cape Agulhas in september | good weather |
| Worcester in september | good weather |
| Kirstenbosch National Botanical Garden in september | good weather |
| Table Mountain National Park in september | good weather |
| Cape Town in september | good weather |
| Arniston in september | good weather |
Click over cities on the map for information about the weather in september.
Hermanus
perfect weather
good
tolerable
bad
very bad
Weather data for Hermanus in september:
Weather data for Hermanus for september are derived from an average of the weather forecast since 2009 in Hermanus. There is a margin of error and these forecasts are to be considered as general information only. The weather in Hermanus can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Hermanus.