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San Sebastián, Spain · Temperate oceanic

San Sebastián in March: go or not?

Tough period. San Sebastián in March only reaches 4.2/10.

📅 Data updated: October 2026 🛰️ ERA5 · 10 years 📍 43.32°N · 1.98°W
⚡ This month's verdict
Avoid
San Sebastián · March
4.2
8–15°
Temperature
40%
Rain
5h
Sun
🌊 Seaside☁️ Often cloudy🍴 Gastronomy
Photo : David Vives via Unsplash
The month in detail

What to expect in March

Spring marks the start of the good season in San Sebastián. Temperatures rise (15°C) and tourists have not yet arrived en masse. Expect rain on 40% of days — a light raincoat in the bag is recommended.

March ranks 8 out of 12 months in San Sebastián. Compared to February: +0.8h of sun per day.

This month's conditions

What it's like in March

UV index
4 · moderate
protect during midday hours
Feels like
dry air
7°
Sea
13°C
cold, for the brave
Daylight
11.6h of daylight
Air quality
good
AQI 31
Compare

Is March the right month?

The best month in San Sebastián is August (8.0/10), 3.8 pts higher than March.

See August →See all 12 months →
Book

Plan your trip

Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.

🎟️ Activities & tours · San Sebastián

GetYourGuide selection · free cancellation

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Affiliate link · GetYourGuide
Practical info

What you need to know before you go

Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.

Country · Spain

🗣️LanguageSpanish
💶CurrencyEuro (€)
🚗DrivingRight-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘModerate · 3/5

🌡️ Climate

🌍Climate typeTemperate oceanic
📈Climate trend ⓘ+1.46°C/decade
🔥Hottest monthAugust · 24°C
❄️Coolest monthJanuary · 12°C
🌧️Rainiest month ⓘNovember · 47%

🏖️ Beach holiday

📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
🛂VisaSchengen · 90 days
Location

Where is San Sebastián ?

Global position + regional geographic context.

🌍 World
🔍 Geographic context
Spain
Temperate oceanic climate with a 8.0 → 1.1 gap between best and worst month. 10 years of ERA5 data to choose by project.
43.32°N · 1.98°W
Questions

Frequently asked questions

What is the best time to visit San Sebastián?
August is the best month with 24.0°C highs, 18.0°C lows, 6.7h of sunshine and 32.0% rainy days. The months of August & July offer comparable conditions.
How many hours of sunshine does San Sebastián get in August?
San Sebastián averages 6.7 sunshine hours per day in August. It is the sunniest month with a climate score of 7.4/10.
What is the rainiest month in San Sebastián?
January is the most unfavourable month with January has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in San Sebastián in August?
In August, overnight lows reach 18.0°C, while afternoon highs average 24.0°C.
Is San Sebastián good in winter?
In winter (December-February), San Sebastián scores 3.0/10 on average — Difficult period — prefer the peak season.. The best month overall remains August with a score of 7.4/10.
When should you avoid San Sebastián?
January is the most difficult month to visit San Sebastián, with January has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in San Sebastián in March?
In March, the sea averages 13°C in San Sebastián: cold, for the brave. Best left to hardened swimmers or those with a wetsuit.
Do you need sun protection in San Sebastián in March?
The average UV index reaches 4 in March in San Sebastián (moderate), with about 11.6h of daylight. Protect during midday hours.