Postiguet Beach, Alicante, Costa Blanca, Spain – the city beach and harbour seen from the walls of Santa Bárbara Castle
Spain · Mediterranean

Alicante Sea Temperature Today

Sea
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Air
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UV
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Refreshing
⁦18–23°C⁩

The sea temperature at Alicante today is 22.8 °C / 73 °F – cold to refreshing water, better for a short swim. The usual October average is 22.3 °C / 72 °F. Over the last 30 days the sea has cooled from 25.9 °C to 22.8 °C. Swimmable from May to November, when the sea averages 18 °C or more. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.

Last updated ·

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 (27.0°C). Coldest in February (13.9°C). Swimmable from May to November, when the sea averages 18 °C or more.

Postiguet Beach, Alicante, Costa Blanca, Spain

The sea temperature at Alicante today is 22.8 °C (73 °F) – cold to refreshing water, better for a short swim. The usual October average is 22.3 °C. Over the last 30 days the sea has cooled from 25.9 °C to 22.8 °C. Swimmable from May to November, when the sea averages 18 °C or more. Source: Sea Temp Map (seatempmap.com) – NASA MUR satellite data and the Copernicus Marine sea forecast.


Sea temperature by month – Alicante
MonthMinAvgMax
January13.7°C / 56.7°F14.3°C / 57.7°F14.7°C / 58.4°F
February13.3°C / 55.9°F13.9°C / 57.0°F14.4°C / 57.8°F
March14.1°C / 57.3°F14.3°C / 57.7°F14.6°C / 58.2°F
April15.0°C / 59.0°F15.8°C / 60.4°F16.5°C / 61.6°F
May18.2°C / 64.7°F18.8°C / 65.9°F19.4°C / 66.8°F
June22.0°C / 71.6°F22.9°C / 73.3°F24.0°C / 75.2°F
July25.0°C / 77.0°F26.1°C / 79.0°F27.0°C / 80.6°F
August26.1°C / 78.9°F27.0°C / 80.5°F27.6°C / 81.6°F
September24.9°C / 76.9°F25.4°C / 77.7°F25.8°C / 78.4°F
October21.7°C / 71.1°F22.3°C / 72.2°F22.7°C / 72.9°F
November15.9°C / 60.6°F18.5°C / 65.2°F20.1°C / 68.2°F
December14.7°C / 58.5°F15.8°C / 60.5°F16.5°C / 61.8°F

Air temperature by month – Alicante
MonthMinAvgMax
January11.0°C / 51.8°F12.9°C / 55.2°F16.0°C / 60.7°F
February11.8°C / 53.2°F13.7°C / 56.6°F16.3°C / 61.3°F
March12.9°C / 55.2°F14.8°C / 58.7°F17.1°C / 62.8°F
April14.5°C / 58.0°F16.6°C / 61.9°F18.7°C / 65.7°F
May17.7°C / 63.8°F19.9°C / 67.9°F21.9°C / 71.5°F
June22.0°C / 71.6°F24.2°C / 75.5°F26.3°C / 79.3°F
July24.9°C / 76.8°F27.0°C / 80.6°F29.1°C / 84.4°F
August25.4°C / 77.7°F27.5°C / 81.4°F29.6°C / 85.3°F
September22.8°C / 73.1°F24.6°C / 76.3°F26.7°C / 80.1°F
October19.6°C / 67.3°F21.4°C / 70.6°F23.7°C / 74.6°F
November15.3°C / 59.6°F17.2°C / 62.9°F20.0°C / 67.9°F
December12.7°C / 54.8°F14.4°C / 57.9°F17.2°C / 62.9°F

5-year averages (2021–2025). Min/Max are typical daily lows and highs, not record extremes. (Copernicus ERA5)

Alicante holidays

Alicante is a port city of around 370,000 people on Spain's Costa Blanca and the capital of its province, set between the sea and the castle-topped Mount Benacantil. Its promenade, beaches and old quarter lie within walking distance of one another, and its airport is the main gateway for the whole coast from Dénia to Torrevieja.

Beaches

Postiguet, the city beach, begins where the palm-lined Explanada ends and sits right below the castle; it is busy but has a gentle slope and a lifeguard service in summer. The sea temperature on this page is measured off Postiguet. North of the port, Albufereta is a smaller, sheltered bay, and Playa de San Juan stretches for several kilometres of wide sand towards El Campello, with more room and hotels close to the water. Boats from the harbour reach Tabarca, a small inhabited island inside a marine reserve, in about an hour.

Things to do

Santa Bárbara Castle crowns Mount Benacantil, and a lift inside the rock carries visitors up from a tunnel opposite Postiguet beach. The Explanada de España runs along the harbour on a pavement of millions of small tiles laid in a wave pattern. The whitewashed lanes of the Santa Cruz quarter climb towards the castle, and the old town below holds the Basilica of Santa María and the Co-Cathedral of San Nicolás. The MARQ archaeological museum was named European Museum of the Year in 2004. The Hogueras de San Juan festival peaks on 24 June, when its huge figures are burned across the city, and fireworks follow for several nights. TRAM line 1 runs north along the coast to Benidorm, where line 9 continues to Altea, and the UNESCO-listed Palm Grove of Elche is half an hour away.

Weather and best time to visit

At Alicante the sea stays above 20 °C / 68 °F from June to October.

Alicante has a sunny, dry climate with little rain, hot summers and mild winters that draw visitors all year. July and August are the busiest months on the beaches. In autumn, occasional storms can bring sudden, heavy rain.

Hotels and where to stay

The centre around the Explanada and the old town keeps the castle, restaurants and Postiguet beach close together. Playa de San Juan is better for a beach holiday, with the tram running into town, and El Campello further north is quieter.

Signature hotels: Meliá Alicante (Postiguet) · Hotel Alicante Gran Sol, Affiliated by Meliá

Airport and getting there

Alicante–Elche Miguel Hernández Airport (ALC) is about 10 km south-west of the city; the C-6 bus runs to the centre in about half an hour. High-speed trains link Alicante with Madrid in a little over two hours, and ferries sail from the port to Algeria.

Frequently asked questions

Is the sea at Alicante warm enough for swimming today?

Today, October 28, the sea at Alicante is 22.8 °C (73 °F) – cold to refreshing water, better for a short swim. The usual October average is 22.3 °C / 72 °F.

When is the best time to swim at Alicante?

From July to September, when the sea at Alicante (Spain) averages 25.4–27 °C / 78–81 °F – warm. No single number works for everyone, so the scale on this page is only a guide to how the water feels: below 13 °C / 55 °F only for cold-water swimmers, 13–18 °C / 55–64 °F icy, 18–23 °C / 64–73 °F cold to refreshing, 23–28 °C / 73–82 °F refreshing to pleasantly warm and above 28 °C / 82 °F as warm as a bath.

Can you swim at Alicante in May?

In May the sea at Alicante (Spain) averages 18.8 °C / 66 °F – cold to refreshing water, better for a short swim. It keeps warming until August, when it peaks at 27 °C / 81 °F.

Is the sea at Alicante still warm in October?

In October the sea at Alicante (Spain) still averages 22.3 °C / 72 °F – cold to refreshing water, better for a short swim.