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Hermanus
Water Temperature in the Indian Ocean in Hermanus, South Africa: Current and Forecast
On this page, you will find comprehensive information about the sea temperature in Hermanus in South Africa, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Hermanus
17.5°C
TODAY
17.7°C
YESTERDAY
17.6°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Indian Ocean in Hermanus is 17.5°C. The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart for Indian Ocean in Hermanus Over the Last 30 Days
The water temperature in Hermanus today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Hermanus will remain nearly unchanged in the coming days, its value will be 18.6°C.
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across South Africa to enhance accuracy.
Water temperature data for Hermanus and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Table of Daily Sea Temperature Data
Date | Current | Average | Forecast |
---|---|---|---|
Mar 5 | 17.6°C | 20.0°C | |
Mar 6 | 17.8°C | 19.5°C | |
Mar 7 | 17.8°C | 19.8°C | |
Mar 8 | 17.9°C | 19.5°C | |
Mar 9 | 18.1°C | 20.5°C | |
Mar 10 | 17.5°C | 20.3°C | |
Mar 11 | 17.7°C | 19.5°C | |
Mar 12 | 17.5°C | 19.8°C | |
Mar 13 | 19.5°C | 17.7°C | |
Mar 14 | 19.0°C | 17.8°C | |
Mar 15 | 18.5°C | 17.9°C | |
Mar 16 | 19.8°C | 18.1°C | |
Mar 17 | 20.3°C | 18.3°C | |
Mar 18 | 18.8°C | 18.4°C | |
Mar 19 | 19.0°C | 18.5°C | |
Mar 20 | 19.3°C | 18.6°C |
Sea Temperature in Hermanus Throughout the Year
Throughout the year, the sea temperature in Hermanus exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 0 days, and exceeds 64°F (18°C) for 119 days.
Below is the annual chart of sea temperature changes in the Indian Ocean in Hermanus.

January
Minimum | Average | Maximum |
---|---|---|
16°C | 19.5°C | 23°C |
February
Minimum | Average | Maximum |
---|---|---|
17°C | 20°C | 23°C |
March
Minimum | Average | Maximum |
---|---|---|
15°C | 19°C | 23°C |
April
Minimum | Average | Maximum |
---|---|---|
13°C | 16.5°C | 20°C |
May
Minimum | Average | Maximum |
---|---|---|
13°C | 16°C | 19°C |
June
Minimum | Average | Maximum |
---|---|---|
14°C | 16.5°C | 19°C |
July
Minimum | Average | Maximum |
---|---|---|
13°C | 15.5°C | 18°C |
August
Minimum | Average | Maximum |
---|---|---|
13°C | 15.5°C | 18°C |
September
Minimum | Average | Maximum |
---|---|---|
13°C | 15°C | 17°C |
October
Minimum | Average | Maximum |
---|---|---|
14°C | 16°C | 18°C |
November
Minimum | Average | Maximum |
---|---|---|
14°C | 17°C | 20°C |
December
Minimum | Average | Maximum |
---|---|---|
16°C | 19°C | 22°C |
Monthly Water Temperature Histogram for Indian Ocean in Hermanus
You can explore detailed data on how the water temperature in Hermanus varies each month:
What Beaches Are There In and Around Hermanus?
Hermanus Tidal Pool
Hermanus Tidal Pool is a 2-stars sandy beach, is located directly in Hermanus. There are restrooms. Snorkeling is possible.
Skulpiesbaai
Skulpiesbaai is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Hermanus.
Kwaaiwater
Kwaaiwater is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Hermanus. Kwaaiwater is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Langbaai Beach
Langbaai Beach is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Hermanus. It is suitable for surfing.
Rowweklip Beach
Rowweklip Beach is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Hermanus. There is parking. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Voelklip Beach
Voelklip Beach is a 5-stars sandy beach, located in a 3 km (2 miles) radius of Hermanus. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Grotto Beach
Grotto Beach is a 5-stars sandy beach, located in a 4 km (2 miles) radius of Hermanus. It has been awarded the prestigious Blue Flag, ensuring high environmental and quality standards. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Grotto Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Klein River Lagoon
Klein River Lagoon is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Hermanus. There is parking. There are cafés. There is a shark hazard on the beach. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Sandbaai Beach
Sandbaai Beach is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Hermanus. There is parking. There are cafés. Sandbaai Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Onrus Beach
Onrus Beach is a 4-stars sandy beach, located in a 7 km (4 miles) radius of Hermanus. There is parking. There are restrooms. There are cafés. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Kolaai Beach
Kolaai Beach is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Hermanus.
Breakfast Bay Beach
Breakfast Bay Beach is a 2-stars sandy beach, located in a 10 km (6 miles) radius of Hermanus. There is parking. Snorkeling is possible.
Hermanus Weather
MARCH 13
19°C / 25°C
overcast clouds: 85-100%humidity: 72% | wind: 12 km/h
MARCH 14
19°C / 25°C
clear skyhumidity: 75% | wind: 4 km/h
MARCH 15
19°C / 22°C
clear skyhumidity: 83% | wind: 3 km/h
MARCH 16
20°C / 20°C
overcast clouds: 85-100%humidity: 82% | wind: 3 km/h



Sea Temperature in the Indian Ocean in Hermanus: General Trends and Swimming Opportunities
The Western Cape region of South Africa, particularly its coastal areas, experience a Mediterranean climate characterized by warm, dry summers and mild, wet winters. The average temperatures range from 15°C in winter to 27°C in summer.
Hermanus is located in Africa in the Southern Hemisphere at a latitude of -34 degrees, along the shores of the Indian Ocean. Hermanus lies within the Western Cape in South Africa.
The average annual daytime air temperature in Hermanus is 22°C (72°F), with the average nighttime temperature being 12°C (54°F). The highest average daily temperature occurs in February, reaching 26°C (78°F), while the lowest is in July at 19°C (66°F). As for nighttime temperatures, the minimum average temperature of 9°C (47°F) is recorded in July, and the maximum is in February, reaching 16°C (60°F).
According to historical data, Hermanus experiences 82 rainy days per year, which accounts for 22 percent of all days in the year. On average, there are 7 rainy days each month. The wettest month is August, with 8 rainy days and 86 mm (3.4 inches) of precipitation, while the driest month is January, which typically has 6 rainy days and only 24 mm (0.9 inches) of precipitation.
The average annual water temperature in Indian Ocean in Hermanus is 17°C (63°F). In April, the water reaches its lowest point of the year at 13°C (55°F), while in January, it peaks at 23°C (73°F). In Hermanus, the water temperature in the Indian Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Hermanus
Nearby Cities
Frequently Asked Questions About Hermanus and its Water Temperatures
What is the current sea temperature in Hermanus?
The water temperature today in the Indian Ocean in Hermanus is 64°F (17.5°C).
In which months is the water temperature in Hermanus comfortable for swimming?
It cannot be guaranteed that the water temperature in Hermanus will be comfortable for swimming in any month of the year.
What is the water temperature in Hermanus during the winter?
The water temperature in the Indian Ocean in Hermanus during the winter ranges from 16°C to 23°C (61°F to 73°F).
What is the water temperature in Hermanus during the spring?
The water temperature in the Indian Ocean in Hermanus during the spring ranges from 13°C to 23°C (55°F to 73°F).
What is the water temperature in Hermanus during the summer?
The water temperature in the Indian Ocean in Hermanus during the summer ranges from 13°C to 19°C (55°F to 66°F).
What is the water temperature in Hermanus during the fall?
The water temperature in the Indian Ocean in Hermanus during the fall ranges from 13°C to 20°C (55°F to 68°F).
Is it possible to swim in the sea in Hermanus at any time of the year?
The Indian Ocean in Hermanus is quite cool, and swimming is only possible in January, February, March, and December when the water temperature reaches 21°C (70°F).
Is Hermanus a popular tourist destination for beach vacations?
Hermanus a fairly popular beach destination, offering good conditions for swimming and relaxation, with a steady flow of tourists, especially during peak seasons.
What sea temperatures can I expect in Hermanus in the next month?
In April, the water temperature in the Indian Ocean in Hermanus will range between 55°F (13°C) and 68°F (20°C)