What is the weather like in Rotterdam in September?

Expect temperatures between 12°C and 19°C with 27% average rain probability and about 8 hours of sunshine daily.

What is the weather like in Rotterdam in September?

Rotterdam in September scores 65/100 based on 30 years of climate data. Recommended for planning your trip.

Who should visit Rotterdam in September?

September in Rotterdam is ideal for: Cultural tourists, Business travelers.

Rotterdam Weather in September | 30-Year Forecast

Avg High

19°C

Hottest around day 4

Avg Low

12°C

Coolest around day 28

Rainy Days

21days

27% avg rain chance

Sunshine

8hrs/day

Autumn season

Sea Temperature in September

North Sea(Noordzee)

18.9°C

Monthly Average

Water Feel

🏊Pleasant

Comfortable for most swimmers

Swim Rating

👍Good for swimming

Based on average sea surface temperature

Body of Water

North Sea

Noordzee

Rotterdam coastline

Essential Travel Info for Rotterdam

🗓️ Best Time to Visit 📖 Travel Guide 🍴 Food Guide

Currency

EUR

€ Euro

Language

Dutch

Driving

Right side

Connect

The telephone country code for the Nethe...

Safety

High Safety

GPI: 1.522

Travel Intelligence

Exclusive flight analytics & health data for Rotterdam

Smart Flight Estimator

Airport-to-Airport Logistics

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Flight Connectivity Analysis

Airport traffic data & seasonal patterns

Remote

15/ 100

Traffic Index

Off the beaten path

Peak Daily Arrivals

slots per day

Peak

Aug

Low

Nov

Monthly Traffic Distribution

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Traffic Level

Low Season

Key Connections

London City (LCY)

Alicante (ALC)

Málaga (AGP)

Faro (FAO)

Innsbruck (INN)

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 the Netherlands. Unvaccinated travelers 60 years and older may get vaccinated before traveling to the Netherlands.

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.

Rabies

Dogs infected with rabies are not commonly found in the Netherlands.If rabies exposures occur while in the Netherlands, 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.

Tick-borne Encephalitis

Avoid bug bitesLearn more abouttick-borne encephalitis at your destination.

+1 more

Source: CDC Travelers' Health

View Complete Health Guide

Is September a Good Time to Visit Rotterdam?

👍Recommended for planning your trip(65/100)

Short Answer

Rotterdam's September delivers on its reputation: 19°C, 27% rain, 8.8h sunshine. The trade-off? Peak crowds and prices at 95% capacity.

Decision Factors

Vaccinations required

Yellow Fever

Peak tourist season

95% of annual peak - expect crowds and peak prices

Health precautions needed

Be aware of: Leptospirosis, Hantavirus, Parvovirus B19

Plenty of sunshine

8.8h of sunshine daily

Calm, family-friendly seas

0m wave height - Lake-like

Rich cultural heritage

5 UNESCO World Heritage sites nearby

Good For

🏛️
Cultural tourists
Comfortable conditions for exploring museums and sites
💼
Business travelers
Climate-controlled meetings unaffected by weather

Who Should Avoid

💰
Budget travelers
Peak season means premium prices everywhere
👴
Elderly travelers
79% humidity creates difficult conditions

"According to 30YearWeather's analysis of 30 years of NASA POWER satellite data,Rotterdam in September averages 19°C with 27% precipitation probability."

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

Frequently Asked Questions: Rotterdam in September

What are the temperatures in Rotterdam in September?

Daytime highs average 19°C, nights drop to 12°C. Temperatures remain fairly consistent.

How many rainy days in Rotterdam in September?

Expect around 21 days with measurable rainfall. Rain is unlikely to disrupt plans.

What to wear in Rotterdam in September?

Layers are key. A medium-weight jacket and closed-toe shoes.

Is September peak season in Rotterdam?

This is shoulder season—moderate prices and manageable crowds.

Rotterdam Weather in September