Kynance Cove sea temperature today: 18°C – beach water temperature, Kynance Cove, United Kingdom
United Kingdom · Atlantic Europe
Kynance Cove
Sea
17.5°C63.5°F
Air
UV
Get a wetsuit
⁦13–18°C⁩

Last updated ·

Today, September 13, the sea temperature at Kynance Cove is 17.5 °C (64 °F). That is 0.9 °C warmer than the usual 16.6 °C in September. Rarely comfortable for swimming.

Climate · monthly averages

Sea temperature by month

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.

Warmest in August (17.2°C). Coldest in March (10.1°C). Rarely comfortable for swimming.

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes.
MonthSea · MinSea · AvgSea · MaxAir · MinAir · AvgAir · Max
January10.3°C10.8°C11.1°C7.8°C8.2°C8.9°C
February9.9°C10.2°C10.4°C8.7°C9.0°C9.8°C
March9.7°C10.1°C10.4°C8.6°C9.3°C10.3°C
April10.2°C10.8°C11.4°C9.1°C10.2°C11.5°C
May11.4°C12.8°C13.9°C11.5°C12.9°C14.3°C
June14.6°C15.1°C15.6°C14.0°C15.4°C17.0°C
July15.7°C16.7°C17.5°C15.7°C17.1°C18.5°C
August16.0°C17.2°C18.6°C16.2°C17.3°C18.7°C
September15.7°C16.6°C17.1°C14.9°C15.8°C17.1°C
October14.5°C14.8°C15.2°C13.4°C14.0°C14.8°C
November13.3°C13.4°C13.7°C11.1°C11.4°C12.0°C
December11.8°C12.0°C12.2°C9.7°C9.9°C10.4°C

About Kynance Cove

On Cornwall's Lizard Peninsula, just north of mainland Britain's southernmost point, Kynance Cove is framed by serpentinite cliffs of the Lizard Complex – roughly 400-million-year-old red-green marbled rock that also forms the offshore stacks of Asparagus Island, Steeple Rock and The Bishop. Golden sand emerges between the cliffs at low tide in an hourglass shape, while a few kilometres north Mullion Cove shelters a small Victorian harbour reached by the South West Coast Path. The Atlantic warms to a swimmable 16–18 °C61–64 °F from July through September.

Frequently asked questions

Today, September 13, the sea at Kynance Cove is 17.5 °C (64 °F)64 °F (17.5 °C) – cold, most people reach for a wetsuit. The usual September average is 16.6 °C62 °F.

No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C55 °F icy, 13–18 °C55–64 °F cold, 18–23 °C64–73 °F refreshing, 23–28 °C73–82 °F pleasantly warm and above 28 °C82 °F like a bath. Right now the sea at Kynance Cove is 17.5 °C64 °F.

In May the sea at Kynance Cove (United Kingdom) averages 12.8 °C55 °F – cold-water swimmers only. It keeps warming until August, when it peaks at 17.2 °C63 °F.

In October the sea at Kynance Cove (United Kingdom) still averages 14.8 °C59 °F – cold, most people reach for a wetsuit. It peaks in August at 17.2 °C63 °F and cools slowly from there.