Netherlands Amsterdam Weather in September — Climate Guide
September in Amsterdam is Very Good
September is Very Good for Amsterdam.
September is early autumn — 19°C daytime, 11°C nights. Hotel rates 20-30% below summer peak. Crowds thin as schools resume across Europe.
Open Monumentendag (Open Heritage Day — 2nd weekend September) opens 600+ private historic buildings across Netherlands to free visitors. Amsterdam canal houses, churches, and gabled buildings that are normally closed allow free entry. Pre-register for the most-popular sites.
Travel score
Early autumn + Open Monument Days + Korean Chuseok
September Weather at a Glance
September averages 66°F / 19°C highs and 50°F / 10°C lows — early autumn. 10 rainy days, 80mm. Humidity 80% + 5 hours of sunshine. Daylight shortens to 12 hours. Year's 2nd-best season.
September Travel Advice
Long sleeves + cardigan + umbrella. 2nd weekend of September Open Monumentendag (European Heritage Days, canal houses + government buildings free). Jordaan Festival (3rd weekend of September). Late September crowds shrink + value.
Flying In from Overseas
Korean Chuseok 1-week — Asia-Amsterdam $1,050-1,680. Post-Chuseok is the value window.
September Pricing Trends
Early autumn — Centrum 3-star $210-350/night.
Amsterdam September Weather Stats
Avg High
19°C
Avg Low
11°C
Rainy Days
13
67mm total
Sunshine
5.5h
Daily avg
Humidity
78%
Comfortable
UV Index
4
Moderate
Wind
14 km/h
Gusts 30
Sea Temp
17°C
Avg water temp
Crowds
Moderate
At attractions
September Sunrise & Sunset
Air Quality
PM2.5
13 μg/m³
PM10
26 μg/m³
Status
Good
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
10°C
Humidity and wind affect how the actual temperature feels.
Wind
14 km/h
Max gust 30 km/h
Activities Recommended for September
September Travel Pros & Cons
Pros
- Open Monumentendag unique cultural day
- Crowds thinning + hotel rates falling
- Still warm enough for outdoor terraces
Cons
- Days shortening (sunset 19:30 by end of month)
- Variable weather (occasional cold snaps)
- Tourist sites still busy weekends
September Events & Festivals
- Open Monumentendag (2nd weekend September — historic buildings open free)
- Hotel rates dropping from peak
- Crowds thinning after schools resume
Amsterdam in September — Full Picture
September is early autumn — 19°C daytime, 11°C nights. Hotel rates 20-30% below summer peak. Crowds thin as schools resume across Europe.
Open Monumentendag (Open Heritage Day — 2nd weekend September) opens 600+ private historic buildings across Netherlands to free visitors. Amsterdam canal houses, churches, and gabled buildings that are normally closed allow free entry. Pre-register for the most-popular sites.
The Amsterdam Fringe Festival (mid-September) runs 11 days of underground theater + performance art across the city. Indoor + outdoor venues. Tickets €10-15.
What to Wear & What to Pack
Light jacket + sweater. Long pants. Daylight shortening — sunset 19:30 by end of September. Layered approach for 10°C swings.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
13.3°C
5°C
13/mo
Summer (Jun·Jul·Aug)
21.3°C
12.3°C
12.7/mo
Autumn (Sep·Oct·Nov)
Current14°C
7.3°C
15.3/mo
Winter (Dec·Jan·Feb)
6.3°C
1.3°C
17.3/mo
Amsterdam Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 6° | 1° | 19d·68mm | 1.7h | 85% | 1 | Quiet | Low season | |
| 7° | 1° | 14d·49mm | 2.7h | 81% | 1 | Quiet | Low season | |
| 10° | 3° | 14d·65mm | 4h | 79% | 2 | Moderate | Shoulder | |
| April (Best) | 13° | 4° | 13d·41mm | 5.5h | 73% | 4 | Busy | Peak |
| May (Best) | 17° | 8° | 12d·49mm | 7h | 70% | 5 | Busy | Peak |
| June (Best) | 20° | 11° | 12d·67mm | 7h | 72% | 6 | Very busy | Peak |
| July (Best) | 22° | 13° | 13d·76mm | 6.5h | 72% | 6 | Very busy | Peak |
| August (Best) | 22° | 13° | 13d·70mm | 6h | 75% | 5 | Very busy | Peak |
| 19° | 11° | 13d·67mm | 5.5h | 78% | 4 | Moderate | Shoulder | |
| 14° | 7° | 16d·88mm | 3.5h | 83% | 2 | Moderate | Shoulder | |
| 9° | 4° | 17d·80mm | 2h | 86% | 1 | Quiet | Low season | |
| 6° | 2° | 19d·79mm | 1.5h | 87% | 1 | Moderate | Peak |
View Other Months
Amsterdam September Hotel Picks
Frequently Asked Questions
Is September a good time to visit Amsterdam?
Amsterdam in September is Very Good. Tourist crowds are moderate and flight/hotel prices are shoulder.
What's the average temperature in Amsterdam in September?
Amsterdam September averages a high of 19°C and a low of 11°C.
Does it rain much in Amsterdam in September?
Amsterdam September averages 67mm of rainfall over about 13 rainy days.
What should I wear in Amsterdam in September?
Light jacket + sweater. Long pants. Daylight shortening — sunset 19:30 by end of September. Layered approach for 10°C swings.
What time are sunrise and sunset in Amsterdam in September?
Amsterdam September sunrise is 07:14 and sunset is 19:51, with 12h 37m of daylight.
What's the air quality like in Amsterdam in September?
Amsterdam September air quality (AQI) averages 40, rated Good. PM2.5 averages 13μg/m³.
What activities are recommended in Amsterdam in September?
In September, Amsterdam is great for Open Monumentendag heritage tour, Amsterdam Fringe Festival, Canal cruise.
Is September peak season in Amsterdam?
Amsterdam September crowds are moderate and prices are shoulder. You can travel relatively comfortably without long queues.
Best Months to Visit Amsterdam
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.