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San Sebastian in March: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in San Sebastian in March will be like? Take a look at our weather guide for San Sebastian, based on historical data.
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March

Weather in San Sebastian in March 2025

OK Weather
Mild
🌧️
Rainy
🌊
Cold water
If you plan to visit San Sebastian in March, the weather is typically alright, with an average high temperature of +59°F during the day and approximately 5 sunny days. Expect some rainy, though, as there are typically 18 rainy days in the month and around 129 mm of precipitation. The weather is changeable so you may have to pack for every eventuality. Search flights in one click on Avionero.
Good to know:
  • March is usually the driest month of the year in San Sebastian

Average weather

☀️
+59°F
Avg. max. temperature
+23°F
Min.
+82°F
Max.
129 mm
Total precipitation
74%
Avg. humidity
3 m/s
Avg. wind
5 ☀️
Sunny Days
7 ⛅️
Cloudy
18 🌦
Rainy
Our opinion: San Sebastian has OK weather in March.
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Average temperature in San Sebastian in March

Here are the expected maximum, average and minimum temperatures in San Sebastian for March based on the historical data.
Last Year
Historical Data

Going from a maximum of +77°F during the day to a minimum of +36°F during the night, the temperature in March averages around +63°F.

The average maximum temperature goes up 48% by the end of the month, compared with the beginning of the month, from +45°F to +64°F.

Is San Sebastian warm or cold in March?

San Sebastian is typically mild in March.

Maximum temperatures go up compared to the previous month from +55°F to +59°F. The minimum temperature also goes up from +45°F to +46°F.

Pack a light jacket as it will be warm in the day and cool in the evenings.

Take a look at how March is compared to other months in San Sebastian:

Water temperature in San Sebastian in March

Water in San Sebastian in March is Cold. It varies from +52°F to +57°F, with an average of +55°F. This is almost similar to the air temperature, which averages +59°F.

The water temperature in March is one of the coldest of the entire year:

The warmest water temperatures in San Sebastian are reached in August, when the average sea temperature rises to +70°F. The coldest water temperatures are in February, with an average of +54°F.

Can you swim in San Sebastian in March?

We would not recommend swimming in San Sebastian in March, the water is very cold (+55°F on average). Consider swimming only if you are an experienced cold-water swimmer with proper gear.
🦭
Cold
Below +61°F
🏄‍♂️
Fresh
61°F - 70°F
🏊
Comfortable
70°F - 77°F
👙
Warm
77°F - 82°F
🔥
Very warm
+82°C and up
You will need a full-body wetsuit, cap, gloves, a warm change of clothes, and a hot drink ready for after your swim.

Climate in San Sebastian in March

San Sebastian weather looks like this, on average, in March and the surrounding months.
FebruaryMarchApril
Avg. temperature
+55°F+59°F+61°F
Min. temperature
+23°F+23°F+34°F
Max. temperature
+79°F+82°F+88°F
Rainfall
130 mm129 mm140 mm
Wind
3 m/s3 m/s2 m/s
Avg. water temperature
+54°F+55°F+57°F
Humidity
75%74%76%
Air pressure
1019 HPa1018 HPa1015 HPa
Sunny days
454
Cloudy days
676
Rainy days
161819
Snowy days
100

March weather is still as ok as in February. It’s getting warmer as March arrives. The average maximum temperature goes up from +55°F to +59°F during the day. As March arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 130 mm to 129 mm. It feels drier, as humidity decreases from 75% to 74%. The average wind speed doesn’t change much during March, staying around 3 m/s. The good news is there are likely to be more sunny days in March, from 4 to 5.

April brings much the same weather, it remains ok.

Wind

Wind speed in San Sebastian in March based on historical data.
Last Year
Historical Data

The average wind speed is 2 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in San Sebastian is gradually increasing during March, going from 1 m/s to 3 m/s over the course of the month.

Rain

Amount of rainfall in mm during March in San Sebastian based on historical data.
Last Year
Historical Data
Typically, there is a 52% chance of rain on an average day in March, with total rainfall of approximately 118 mm. The maximum amount of rainfall per day is around 29 mm, which is moderate rain. March is a pretty wet month with over 16 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how March is compared with other months in the amount of precipitation, total mm:
San Sebastian wettest month is November, where a typical day has a 60% chance of precipitation and 191 mm of rainfall per day. July, on the other hand, is the driest month with a mere 52% chance of precipitation and 93 mm of rainfall per day.

How was the weather last March in San Sebastian?

This is the weather in San Sebastian in March 2024:
1 March
☁️
+45°F
2 March
🌧️
+50°F
3 March
🌧️
+48°F
4 March
☀️
+53°F
5 March
☀️
+55°F
6 March
☁️
+54°F
7 March
🌧️
+57°F
8 March
🌧️
+69°F
9 March
☀️
+70°F
10 March
☁️
+66°F
11 March
🌧️
+62°F
12 March
☀️
+71°F
13 March
☀️
+73°F
14 March
🌧️
+60°F
15 March
☀️
+62°F
16 March
☀️
+72°F
17 March
☁️
+71°F
18 March
☀️
+65°F
19 March
🌧️
+58°F
20 March
☀️
+63°F
21 March
☀️
+61°F
22 March
☀️
+62°F
23 March
☀️
+75°F
24 March
☁️
+65°F
25 March
☀️
+68°F
26 March
🌧️
+61°F
27 March
🌧️
+59°F
28 March
☀️
+71°F
29 March
☁️
+76°F
30 March
☀️
+71°F
31 March
🌧️
+65°F
In March 2024 San Sebastian had 15 sunny days, 6 cloudy days, and 10 rainy days. The average maximum temperature was +63°F, with an absolute maximum of +77°F and a minimum of +45°F. The average humidity was 74%, with a maximum of 97% and a minimum of 42%. The average wind speed was 2 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in March?

Climate Change Over the Years

This is how San Sebastian climate has changed over the last 43 years.

The climate in San Sebastian in March has not changed that much over the last 43 years.

The average temperature was the lowest in 1984 (+61°F) and the highest in 2022 (+68°F). The driest year was 1989 with only 973 mm of rainfall, and the wettest year was 2019 with 4351 mm.

FAQ

Frequently asked questions about the weather in San Sebastian in March:

Is March a good time to visit San Sebastian?

It’s always a good time to visit San Sebastian, but the weather is changeable in March, so plan a mix of indoor and outdoor activities and exploring, and pack for every eventuality.

Can you sunbathe in San Sebastian in March?

March has mild temperatures in San Sebastian. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!

Can you swim in San Sebastian in March?

Swimming in San Sebastian in March is challenging and not recommended for inexperienced swimmers or without proper equipment and preparation.

Is San Sebastian rainy in March?

San Sebastian is often rainy in March. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.

Is it sunny in San Sebastian in March?

Usually, it’s not very sunny in San Sebastian in March, often it’s pretty cloudy. Pack for any eventuality; layering can help reduce the number of bulky items needed.

Other cities in Spain

Check out the weather for other cities in Spain.

Monthly weather in San Sebastian

Source of the data

For this page, we’ve looked at the typical weather in San Sebastian, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.