Hermanus in May
Find out everything about the water temperature in Hermanus in May. Average, minimum and maximum recorded temperatures as well as daily temperature in May for the last two years. Compare the current month's sea temperature data with other months of the year.
Water temperature in May
Minimum:
54.2 °F
Average:
60.0 °F
Maximum:
63.6 °F
Sea water temperature in Hermanus in May
In the city of Hermanus, the month of May is too cold for swimming. The minimum recorded temperature during this month was 54.2°F on May 2, 2024, with an average temperature being 60.0°F and a maximum temperature reaching 63.6°F on May 11, 2023.
| Date | 10 years average | 2025 | 2024 |
|---|---|---|---|
| May 1 | 58.8°F | 56.9°F | 55.8°F |
| May 2 | 59.0°F | 56.6°F | 54.2°F |
| May 3 | 59.8°F | 56.9°F | 56.6°F |
| May 4 | 59.9°F | 57.2°F | 56.7°F |
| May 5 | 60.1°F | 57.8°F | 57.2°F |
| May 6 | 60.0°F | 57.7°F | 57.5°F |
| May 7 | 59.9°F | 57.2°F | 56.8°F |
| May 8 | 60.0°F | 57.9°F | 57.2°F |
| May 9 | 59.7°F | 57.6°F | 57.4°F |
| May 10 | 59.9°F | 57.8°F | 58.6°F |
| May 11 | 60.1°F | 58.0°F | 58.7°F |
| May 12 | 60.1°F | 58.0°F | 58.8°F |
| May 13 | 60.0°F | 57.9°F | 58.6°F |
| May 14 | 59.8°F | 57.7°F | 58.5°F |
| May 15 | 59.5°F | 57.4°F | 57.7°F |
| May 16 | 59.5°F | 57.4°F | 58.8°F |
| May 17 | 59.5°F | 57.4°F | 59.4°F |
| May 18 | 59.5°F | 57.4°F | 58.4°F |
| May 19 | 59.8°F | 57.7°F | 60.0°F |
| May 20 | 60.0°F | 57.8°F | 60.7°F |
| May 21 | 60.4°F | 58.3°F | 61.3°F |
| May 22 | 60.3°F | 58.2°F | 60.2°F |
| May 23 | 60.4°F | 58.3°F | 60.6°F |
| May 24 | 60.6°F | 58.5°F | 59.9°F |
| May 25 | 60.9°F | 58.8°F | 59.6°F |
| May 26 | 60.8°F | 58.7°F | 60.1°F |
| May 27 | 60.9°F | 58.7°F | 60.6°F |
| May 28 | 60.8°F | 58.7°F | 60.3°F |
| May 29 | 60.8°F | 58.7°F | 60.4°F |
| May 30 | 60.5°F | 58.4°F | 60.6°F |
| May 31 | 60.5°F | 58.4°F | 60.7°F |
In an average year, Hermanus offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Hermanus was recorded on January 12, 2025, reaching a 70.8°F. While the coldest temperature occurred on April 15, 2024, dipping to 51.4°F. The average readings by season are 65.1°F in Winter, 60.8°F in Spring, 59.2°F in Summer, and 60.7°F in Autumn.
In May, the temperature remains consistent with April's average reading of 60.0°F. However, in June, it rises to an average of 60.2°F.