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Sea Temperature in Hermanus in September
Complete information on the sea temperature range in the Indian Ocean in Hermanus in September. Historical daily data. Climate details for September. Tips on swimming conditions and beach relaxation in Hermanus. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Hermanus in September
13°C
MINIMUN
15°C
AVERAGE
17°C
MAXIMUM
Historical Data of Water Temperature in September in Hermanus
Water Temperature Chart for Indian Ocean in Hermanus in September
Sea Temperature Table in Hermanus in September Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| Sep 1 | 15°C | 16°C | 14°C | 14.8°C |
| Sep 2 | 15°C | 17°C | 17°C | 15.8°C |
| Sep 3 | 15°C | 15°C | 15°C | 14.8°C |
| Sep 4 | 16°C | 16°C | 14°C | 15.0°C |
| Sep 5 | 15°C | 16°C | 16°C | 15.3°C |
| Sep 6 | 15°C | 16°C | 15°C | 15.3°C |
| Sep 7 | 15°C | 17°C | 15°C | 15.3°C |
| Sep 8 | 15°C | 17°C | 15°C | 15.3°C |
| Sep 9 | 15°C | 17°C | 17°C | 15.8°C |
| Sep 10 | 15°C | 17°C | 15°C | 15.3°C |
| Sep 11 | 15°C | 15°C | 16°C | 15.0°C |
| Sep 12 | 16°C | 16°C | 15°C | 15.3°C |
| Sep 13 | 16°C | 16°C | 15°C | 15.3°C |
| Sep 14 | 16°C | 16°C | 14°C | 15.0°C |
| Sep 15 | 15°C | 16°C | 17°C | 15.5°C |
| Sep 16 | 15°C | 16°C | 16°C | 15.3°C |
| Sep 17 | 15°C | 16°C | 15°C | 15.3°C |
| Sep 18 | 15°C | 17°C | 16°C | 15.5°C |
| Sep 19 | 14°C | 16°C | 16°C | 15.0°C |
| Sep 20 | 15°C | 16°C | 17°C | 15.5°C |
| Sep 21 | 15°C | 16°C | 14°C | 14.8°C |
| Sep 22 | 15°C | 16°C | 15°C | 15.0°C |
| Sep 23 | 16°C | 16°C | 17°C | 15.8°C |
| Sep 24 | 15°C | 16°C | 17°C | 15.5°C |
| Sep 25 | 16°C | 17°C | 17°C | 16.0°C |
| Sep 26 | 17°C | 16°C | 17°C | 16.0°C |
| Sep 27 | 16°C | 16°C | 16°C | 15.5°C |
| Sep 28 | 16°C | 16°C | 14°C | 15.3°C |
| Sep 29 | 16°C | 16°C | 16°C | 15.8°C |
Hermanus Climate and Swimming Opportunities in September
20°C
Average Day Air Temperature
10°C
Average Night Air Temperature
53 mm
Precipitation Amount per Month
8 days
Number of Rainy Days
12 hrs
Daylight
per Day
7 hrs
Sunshine
per Day
16 km/h
Average Wind Speed
75%
Average
humidity
Hermanus lies within the Western Cape in South Africa. The average daytime temperature in Hermanus in September is 20°C (67°F), while the nighttime average is 10°C (51°F). There are typically eight rainy days during the month, with a total precipitation of 53 mm (2.1 inches). The daylight duration in September in Hermanus is 12 hours, with an average of 7 hours of sunshine per day. The average wind speed in September is 16 km/h (10 mph), and the humidity level is around 75%.
The water temperature in Hermanus in September ranges from 14°C to 16°C (57°F to 61°F). At the beginning of the month, the average temperature is around 15°C (59°F), shifting to 15°C (59°F) by mid-September and reaching 15°C (59°F) in the last ten days. Overall, the average sea temperature in Hermanus for September is 15°C (59°F). Ideal conditions for a refreshing swim, though some may still find it a bit cool.
Sea Temperature in September in Nearby Cities
Frequently Asked Questions About Water Temperatures in September in Hermanus
What is the sea temperature in Hermanus in September?
The water temperature in the Indian Ocean in Hermanus in September ranges from 14°C to 16°C (57°F to 61°F).
Is it possible to swim in the Indian Ocean in Hermanus in September?
The average sea temperature in Hermanus in September is 15°C (59°F), and the air temperature is 20°C (67°F), so ideal conditions for a refreshing swim, though some may still find it a bit cool.