Tenerife sea temperature by month

The sea around Tenerife stays swimmable all year, ranging from around 18–19°C at its coolest (February to April) to around 23–24°C at its warmest (September and October). The water lags behind the air: it keeps warming through late summer and stays warm well into autumn, so October often has the best sea of the year.

The Atlantic around Tenerife is fresher than the Mediterranean in summer but much warmer in winter, which is why so many people swim here on winter-sun holidays.

Sea temperature by month

Month	Typical sea temp (south)	Feels like
January	19–20°C	Fresh but swimmable
February	18–19°C	Coolest; brisk
March	18–19°C	Coolest; brisk
April	18–19°C	Brisk, warming slowly
May	19–20°C	Refreshing
June	20–21°C	Pleasant
July	21–22°C	Comfortable
August	22–23°C	Warm
September	23–24°C	Warmest
October	22–24°C	Warm
November	21–22°C	Pleasant
December	20–21°C	Comfortable for most

These are typical averages from long-term climate records. Actual temperatures vary from year to year, and recent years have seen warmer-than-usual sea temperatures at times.

South vs north

• South and south-west (Los Cristianos, Las Américas, Costa Adeje, Los Gigantes): generally the warmest and calmest water, sheltered from the trade winds.
• North (Puerto de la Cruz, the north coast): often a degree or so cooler and more exposed to swell, so swimming conditions are rougher. Natural pools and lido complexes are popular here.
• South-east (El Médano): warm, but windy, which makes it a favourite for windsurfing and kitesurfing.

Best months for swimming

• For the warmest water: September and October.
• For the best overall beach weather: July to October, when both air and sea are warm.
• For winter sun: December and January, when the sea is often still around 20°C.
• For bracing swims: February to April, when a shortie wetsuit can help for long sessions.

For air temperatures, sunshine and rain, see Tenerife weather by month.

Swimming safely

Warm water doesn’t always mean safe water. The Atlantic can produce strong currents and powerful waves, particularly on north- and west-facing coasts and in winter.

• Choose lifeguarded beaches and swim between the flags.
• Check the flag: green is safe, yellow means caution, red means no swimming.
• Be careful on rocks and around natural pools, where waves can break over unexpectedly.
• Watch out for sea life: weever fish in sandy shallows and occasional jellyfish. Water shoes help.
• Don’t swim after drinking, especially after an evening out.

See is Tenerife safe? and Tenerife beaches.

Activities in the water

• Snorkelling: calm bays in the south-west such as around La Caleta offer clear water and fish. Turtles are sometimes seen.
• Diving: good visibility and year-round diving, with several dive centres in the south.
• Surfing, windsurfing and kitesurfing: El Médano and the north coast are best known.
• Boat trips and whale watching: the waters between Tenerife and La Gomera are home to resident pilot whales and dolphins; see whale and dolphin watching and Tenerife boat trips.

Why the sea is cooler than you might expect

Tenerife sits at roughly the same latitude as southern Morocco, so some visitors expect tropical water. In fact, the Canary Current carries cooler water south from the North Atlantic, and cold water welling up off the coast of north-west Africa keeps the sea fresher than the air temperature suggests. The upside is that the sea stays remarkably stable: the difference between the coolest and warmest months is only around five or six degrees.

That stability is why the sea in January can be warmer than in early summer in much of the Mediterranean, and why winter swimmers are a common sight on the southern beaches.

Natural pools

If the open sea is too rough, Tenerife has many natural rock pools (charcos and piscinas naturales), particularly on the north and west coasts. Water temperatures are similar to the sea, but they can be calmer on quieter days. Be careful when waves are high, as swell can wash over the rocks, and many pools are closed when the sea is rough.

Hotel pools

Many hotels heat their pools in winter, but not all do. If a warm pool matters, ask before booking.

After the beach

A day in the water pairs well with a relaxed evening. DoTenerife lists what’s on tonight across the island, from beachfront bars with live music to family-friendly entertainment.

What to bring

Sunscreen (reef-friendly where possible), water shoes, a mask and snorkel, and a light layer for when you get out of the water in winter. See what to pack for Tenerife.