El Hierro weather in May
El Hierro in May: expect average daytime highs of 22.6°C, nights around 17.9°C, a sea temperature of 20.9°C and about 0.7 rainy days. That comes with around 243 hours of sunshine, making it one of Europe's sunniest winter escapes.
El Hierro climate averages in May
| Average high | 22.6 °C |
|---|---|
| Average low | 17.9 °C |
| Sea temperature | 20.9 °C |
| Rainy days | 0.7 |
| Sunshine hours | 243 |
El Hierro weather month by month
See today's live beach forecast for El Hierro · Warmest Canary Island in May · Sea temperature · Sunniest island right now
Frequently asked questions
Is El Hierro warm in May?
Yes. El Hierro in May has average daytime highs of <span class="num">22.6</span>°C and mild nights around <span class="num">17.9</span>°C, typical of the islands' subtropical climate.
Can you swim in the sea on El Hierro in May?
Yes. The sea around El Hierro averages <span class="num">20.9</span>°C in May, which is comfortable for swimming for most people.
Does it rain much on El Hierro in May?
Not much. El Hierro sees about <span class="num">0.7</span> rainy days on average in May, so most days stay dry and sunny.
What should I pack for El Hierro in May?
Light summer clothing for the daytime, a light layer for the evenings, plus sun cream and sunglasses — the UV stays high even in winter.
Car hire in El Hierro · Weather map
Data source: AEMET © Agencia Estatal de Meteorología · Climate averages from AEMET normals (1981–2010 / 1991–2020). Last reviewed 2026-06-12.