Umhlanga Rocks — Sea temperature now
Popular beach in Umhlanga, South Africa.
Mild water with a light chop and a light breeze — comfortable conditions for most swimmers.
Location
Umhlanga Rocks on the map, with nearby beaches and live sea temperatures.
7-day forecast
Water, air, waves, wind and UV outlook for the week ahead.
Monthly sea temperature averages
Typical year-round water temperature, based on regional climatology.
Best time to swim in Umhlanga Rocks
The sea in Umhlanga Rocks peaks in February, when the water averages around 25°C.
The main swimming season runs from January – December, when surface temperatures stay comfortable for extended sessions.
On average, 12 months a year sit above 20°C — the threshold most swimmers describe as pleasant without a wetsuit.
The coldest month is typically July at around 20°C, when cold-water swimmers dominate the coast.
Umhlanga Rocks sits in the Southern Hemisphere, so the warmest sea coincides with the December–February summer and the coolest with July–August.
Umhlanga Rocks sea temperature history
Long-term climatology for Umhlanga Rocks shows an annual mean sea temperature of 22°C, ranging from 20°C in winter to 25°C at the summer peak.
The seasonal swing is roughly 5°C between the coldest and warmest month — a useful yardstick when comparing years or checking whether the current sea is running above or below average.
Recent decades have trended slightly warmer at Umhlanga Rocks, in line with regional sea-surface temperature records for the wider basin.
Monthly averages below are drawn from multi-decadal climatology and are updated as new observations arrive.
Umhlanga Rocks sea temperature: frequently asked questions
What is the warmest month to swim in Umhlanga Rocks?
February is the warmest month in Umhlanga Rocks, when the sea averages about 25°C. Late-season warmth often persists a few weeks after peak.
When is the sea coldest in Umhlanga Rocks?
The coldest month in Umhlanga Rocks is typically July, when the water averages around 20°C. Cold-water swimmers and surfers dominate this period.
When can you swim in Umhlanga Rocks without a wetsuit?
The main swimming season in Umhlanga Rocks runs from January – December — about 12 months a year when the sea sits above 20°C, the level most swimmers describe as pleasant without a wetsuit.
Do I need a wetsuit in Umhlanga Rocks?
Outside peak summer the water in Umhlanga Rocks drops toward 20°C, so a 3/2mm shorty or full wetsuit makes long swims much more comfortable. In peak months most swimmers go without.
What is the average sea temperature in Umhlanga Rocks?
The long-term annual mean sea temperature in Umhlanga Rocks is about 22°C, based on multi-decadal climatology of the surrounding waters.
How do I check the current sea temperature in Umhlanga Rocks?
The live reading at the top of this page shows the current sea temperature in Umhlanga Rocks, updated hourly from marine buoy and satellite data. The 7-day forecast covers water, air, waves, wind and UV for the week ahead.
Year-round sea temperature
Best swim months: Jan – Feb – Mar – Apr – May – Jun – Jul – Aug – Sep – Oct – Nov – Dec
| Month | Sea | Comfort |
|---|---|---|
| Jan | 24°C | Warm |
| Feb ⭐ | 25°C | Warm |
| Mar | 24°C | Warm |
| Apr | 23°C | Warm |
| May | 22°C | Warm |
| Jun | 21°C | Pleasant |
| Jul | 20°C | Pleasant |
| Aug | 20°C | Pleasant |
| Sep | 21°C | Pleasant |
| Oct | 22°C | Warm |
| Nov | 23°C | Warm |
| Dec | 24°C | Warm |