What is the weather like in Bilbao in September?

Expect temperatures between 15°C and 23°C with 26% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Bilbao in September?

Bilbao in September scores 65/100 based on 30 years of climate data. Solid choice for most travelers.

Who should visit Bilbao in September?

September in Bilbao is ideal for: Cultural tourists, Business travelers, Adventure seekers.

Bilbao Weather in September | 30-Year Forecast

Avg High

23°C

Hottest around day 5

Avg Low

15°C

Coolest around day 27

Rainy Days

17days

26% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

Bay of Biscay(Golfo de Vizcaya)

21.2°C

Monthly Average

Water Feel

🏊Pleasant

Comfortable for most swimmers

Swim Rating

👍Good for swimming

Based on average sea surface temperature

Body of Water

Bay of Biscay

Golfo de Vizcaya

Bilbao coastline

Essential Travel Info for Bilbao

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

EUR

€ Euro

Language

Spanish

+3 more

Driving

Right side

Connect

As of June 2022, Bilbao has 5G from all ...

Safety

High Safety

GPI: 1.603

Travel Intelligence

Exclusive flight analytics & health data for Bilbao

Smart Flight Estimator

Airport-to-Airport Logistics

unlock smart flight estimates

Add your home location in settings to see airport details.

Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Moderate

49/ 100

Traffic Index

Balanced traffic

Peak Daily Arrivals

slots per day

Peak

Sep

Low

Jan

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

184

Jun

166

Jul

158

Aug

187

Sep

180

Oct

120

Nov

186

Dec

Traffic Level

Low Season

Key Connections

Madrid Adolfo Suárez –Barajas (MAD)

Barcelona (BCN)

London Gatwick (LGW)

Seville Sevilla (SVQ)

Amsterdam Schiphol (AMS)

Health & Safety Advisory

CDC travel health recommendations

7 Recommendations

COVID-19

All eligible travelers should be up to date with their COVID-19 vaccines. Please seeYour COVID-19 Vaccinationfor more information.

Hepatitis A

Consider hepatitis A vaccination for most travelers. It is recommended for travelers who will be doing higher risk activities, such as visiting smaller cities, villages, or rural areas where a traveler might get infected through food or water. It is recommended for travelers who plan on eating street food.

Hepatitis B

Recommended for unvaccinated travelers younger than 60 years old traveling to Spain. Unvaccinated travelers 60 years and older may get vaccinated before traveling to Spain.

Measles

Cases of measles are on the rise worldwide. Travelers are at risk of measles if they have not been fully vaccinated at least two weeks prior to departure, or have not had measles in the past, and travel internationally to areas where measles is spreading.All international travelers should be fully vaccinated against measles with the measles-mumps-rubella (MMR) vaccine, including an early dose for infants 6–11 months, according toCDC’s measles vaccination recommendations for international travel.

Polio

In Spain poliovirus has been identified in the past year.Travelers to Spain are at increased risk of exposure to poliovirus.Vaccine recommendations: Adults traveling to Spain who received a complete polio vaccination series as children may receive a single lifetime booster dose of inactivated polio vaccine; travelers who are unvaccinated or not fully vaccinated should receive a complete polio vaccination series before travel. Children who are not fully vaccinated will be considered for anaccelerated vaccination schedule.

Rabies

Dogs infected with rabies are not commonly found in Spain.If rabies exposures occur while in Spain, rabies vaccines are typically available throughout most of the country.Rabies pre-exposure vaccination considerations include whether travelers 1) will be performing occupational or recreational activities that increase risk for exposure to potentially rabid animals and 2) might have difficulty getting prompt access to safe post-exposure prophylaxis.Please consult with a healthcare provider to determine whether you should receive pre-exposure vaccination before travel.For more information, seecountry rabies status assessments.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Bilbao?

👍Solid choice for most travelers(65/100)

Short Answer

September perfect for Bilbao's beaches - 21.2°C water temperature, 23°C days, minimal 26% rain. Book beachfront early as this is peak coastal season.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

100% of annual peak - expect crowds and peak prices

Ideal temperature range

22.9°C - perfect for sightseeing and outdoor activities

Health precautions needed

Be aware of: Leptospirosis, Leishmaniasis, Hantavirus

Plenty of sunshine

9.3h of sunshine daily

Exceptional dining scene

35 Michelin-listed restaurants

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather
🎯
Adventure seekers
1.37m waves - good for surfing and water sports

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
78% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Bilbao in September averages 23°C with 26% precipitation probability."

📊 Source: 30YearWeather.com🛰️ Data: NASA POWER (1991-2021)View Methodology →

Frequently Asked Questions: Bilbao in September

What are the temperatures in Bilbao in September?

Daytime highs average 23°C, nights drop to 15°C. Temperatures remain fairly consistent.

How many rainy days in Bilbao in September?

Expect around 17 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Bilbao in September?

Comfortable casual wear with a light jacket for evenings.

Is September peak season in Bilbao?

This is shoulder season—moderate prices and manageable crowds.

Bilbao Weather in September