Reykjavik weather in September

Monthly temperatures, rain, humidity, what to wear and what to pack — 2024–2025 historical average

Reykjavik September weather at a glance

D Challenging 😓

In September, Reykjavik averages 7.8°C, with typical highs of 10.2°C and lows of 5.4°C. The historical average is 18 wet days and 81% humidity.

Compared with Seoul in September, it is 15.1°C cooler than Seoul, with 5 more wet days.

Reykjavik September temperature & humidity

Average7.8°CHigh 10.2° / low 5.4°

Humidity81%

Wet days18 days60% of days

Day–night range4.8°

Reykjavik September rain & wet days

Wet days18 daysHistorical monthly average

Share of wet days60%Not a forecast probability

Pack a light rain jacket, waterproof pouch and quick-dry shoes. Keep an indoor stop available between outdoor activities.

What to wear in Reykjavik in September

A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Rain is frequent at roughly 18 days in the month; pack a rain jacket and water-resistant shoes.

DaytimeWarm coat and layered tops · average high 10.2°C
Morning & eveningLong sleeves with a jacket or cardigan · average low 5.4°C
FootwearComfortable walking shoes; quick-dry footwear for rainy days.

Useful extras

Warm jacket or coatKnitwearRain jacketWater-resistant shoesCompact umbrella

Use the London checklist as a starting point →

Packing essentials

Coupang affiliate links · We earn a commission on purchases. Products are sold on the Korean Coupang store.

Travel compression packing pouches
코멧 여행용 압축 파우치 4종 세트 Travel plug adapter
에너자이저 PD 45W 여행용 멀티 어댑터, 화이트 Compact folding umbrella
솔리앤 초경량 UV차단 3단 자동우산 Inflatable travel neck pillow
마이워니 여행용 에어 목베개

Reykjavik September sunrise & sunset times

2026 September · Local time (Atlantic/Reykjavik)

Sunrise on the 15th06:51

Sunset on the 15th19:54

Daylight duration13h 3m

Start, middle and end of the month
Date	Sunrise	Sunset	Daylight
2026-09-01	06:10	20:44	14h 33m
2026-09-15	06:51	19:54	13h 3m
2026-09-30	07:34	19:00	11h 27m

For sunset photos, arrive before the listed sunset time. Clouds, mountains and buildings can change when the sun becomes visible or disappears.

Calculated for the city coordinates with daylight saving applied. SunCalc · tz-lookup

Reykjavik travel updates

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Reykjavik weather cameraIcelandic Met Office · Updated images

Check the camera timestamp at the source.

Reykjavik travel essentials

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Best months to visit Reykjavik

Bar height shows our simple weather-comfort score, not a safety rating; colour shows temperature.

J F M A M J J A S O N D

ColdHot

September weather by year

September 20246.6°14 wet days, 81% humidity

September 20259°22 wet days, 81% humidity

Daily weather in 2025

Daily high and low temperatures; blue labels show precipitation

116°9°3mm

216°9°1.9mm

315°9°

413°9°6.6mm

511°6°3.3mm

611°5°1.8mm

78°5°13mm

816°7°18mm

910°8°2.2mm

1012°8°29mm

1115°8°3mm

1214°7°

1313°4°2mm

1412°8°7.1mm

1514°8°1.4mm

1613°8°2.6mm

1710°3°

187°2°

196°2°

206°2°

219°3°1.7mm

2212°8°

2311°9°14mm

2410°8°8.5mm

2511°8°10mm

2612°10°17mm

2710°6°6mm

2811°2°

2912°8°15mm

3010°9°21mm

Frequently asked questions

What is Reykjavik weather like in September?

In September, Reykjavik averages 7.8°C, with typical highs of 10.2°C and lows of 5.4°C. The historical average is 18 wet days and 81% humidity. Our weather-comfort rating for this month is challenging.

Does it rain a lot in Reykjavik in September?

There are about 18 wet days in September. Pack a rain jacket and water-resistant shoes.

What should I wear in Reykjavik in September?

A warm jacket or coat over knitwear works well, with an extra layer for mornings and evenings. Rain is frequent at roughly 18 days in the month; pack a rain jacket and water-resistant shoes.

What are the best months to visit Reykjavik?

No months meet the A or B threshold in our temperature-and-precipitation score. Compare the monthly values with your planned activities.

Where can I check Reykjavik weather in September in real time?

Check local webcams for the view right now and a local weather service for today’s forecast. Monthly temperatures here are historical averages.

What time are sunrise and sunset in Reykjavik in September?

On 2026-09-15, calculated sunrise is 06:51 and sunset is 19:54 in local time (Atlantic/Reykjavik). Times vary by date and terrain.

Reykjavik weather by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

More Europe destinations in September

Madrid Seville Granada Mallorca Lisbon Porto Florence Venice Milan Naples Amalfi Positano Sicily Palermo Cinque Terre Nice Lyon Mont Saint-Michel Strasbourg Amsterdam All destinations →

Open-Meteo (CC BY 4.0) · 2024–2025 historical data, aggregated and rounded by this site. Not a forecast or long-term climate normal. Calculation method and limitations