San Sebastian weather
Our guide to the weather in San Sebastian during April
We've looked at the most up-to-date weather data for San Sebastian, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about San Sebastian weather in April.
What's the temperature like in San Sebastian during April?
The temperature is extremely stable in April with average highs of 20℃ and lows just 2℃ lower at 18℃. The UV index will be moderate at this time of year, so not something to worry about for the average person. However, if you're going to be outside for long periods it's worth wearing a broad spectrum SPF 30+ sunscreen and UV-blocking sunglasses. Remember that bright surfaces, such as water and sand increase UV exposure.
Does it rain in San Sebastian during April?
The answer is no. San Sebastian is typically bone dry in April. You're not likely to see a thunderstorm during your trip.
Is it windy in San Sebastian during April?
You're unlikely to experience any strong winds. Expect a gentle breeze that increases to moderate at times during April. With warm air temperatures and high humidity, any breeze will feel warm but refreshing.
Is it too cold to swim in the sea in San Sebastian during April?
The water around San Sebastian is a bracing 14℃ during April and would be considered too cold for swimming. Those who are a bit more hardy or frequently swim in cooler open water might want to take a quick dip. A wetsuit would be advisable if you wish to spend longer than 5 minutes in the water.
Weather in San Sebastian
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