In March the sea is warmest around El Hierro (21 °C), Tenerife (20 °C) and La Gomera (20 °C). Average daytime highs across the 30 islands below range from 15 °C to 23 °C; the warmest days are on Gran Canaria (23 °C). None of them has real beach weather this month (sea and air both at 22 °C or more) — it is a month for walking, towns and quiet beaches rather than swimming. Hiking conditions (15–25 °C by day, little rain) are best on El Hierro, Tenerife, La Gomera, La Palma, Gran Canaria, Fuerteventura and others. Driest: Tenerife with about 3 rain days.
| Island | Sea | Day | Night | Rain days | Good for |
|---|---|---|---|---|---|
| El Hierro | 21° | 18° | 12° | 6 | Hike |
| Tenerife | 20° | 21° | 15° | 3 | Hike |
| La Gomera | 20° | 22° | 16° | 4 | Hike |
| La Palma | 20° | 22° | 15° | 9 | Hike |
| Gran Canaria | 20° | 23° | 16° | 6 | Hike |
| Fuerteventura | 19° | 21° | 15° | 3 | Hike |
| Lanzarote | 19° | 22° | 15° | 3 | Hike |
| La Graciosa | 19° | 20° | 15° | 4 | Hike |
| Cyprus | 18° | 19° | 11° | 6 | Hike |
| Santorini | 17° | 15° | 11° | 7 | Hike |
| Crete | 17° | 18° | 10° | 9 | – |
| Ithaca | 16° | 15° | 9° | 12 | – |
| Malta | 16° | 17° | 13° | 6 | Hike |
| Comino | 16° | 17° | 12° | 7 | Hike |
| Gozo | 16° | 17° | 13° | 7 | Hike |
| Corfu | 16° | 16° | 10° | 12 | – |
| Capri | 15° | 16° | 9° | 13 | – |
| Formentera | 15° | 18° | 12° | 8 | Hike |
| Ibiza | 15° | 17° | 12° | 8 | Hike |
| Mallorca | 15° | 18° | 10° | 9 | Hike |
| Ischia | 15° | 15° | 10° | 12 | – |
| Menorca | 15° | 16° | 11° | 9 | Hike |
| Lavezzi Islands (also Cavallo, Île de Piana) | 15° | 15° | 10° | 10 | – |
| Île Sainte-Marguerite (also Île Saint-Honorat) | 14° | 15° | 7° | 7 | – |
| Port-Cros | 14° | 15° | 8° | 6 | – |
| Île du Gaou | 14° | 15° | 8° | 7 | – |
| Île des Embiez | 14° | 15° | 8° | 7 | – |
| Île du Levant | 14° | 15° | 8° | 6 | – |
| Porquerolles | 14° | 16° | 8° | 6 | – |
| Pomègues (also Frioul Islands, Ratonneau) | 14° | 15° | 8° | 6 | – |
Sources: ERA5 reanalysis via Open-Meteo (air temperature, rain; 10-year average) and Open-Meteo Marine API (sea surface temperature; 3-year average). Data by Open-Meteo.com (CC BY 4.0). Area averages — individual years vary.
Other months
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
All islands, all months: sea temperature at a glance