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Reykjavik's rooftops and Hallgrímskirkja viewed from above

Reykjavik in September

Aurora returns, crowds ease

By Daan · Last reviewed October 2026

The short answer

September is the best month to visit Reykjavik.

September is a favourable month: summer prices ease and the aurora season begins.

6.2/10 overall6–10°CModerate crowds$$$
Weather6.5/10
Crowds6/10
Prices$$$
Events6/10

September in detail

What September actually feels like

Weather
6–10°C
Cool and often wet, with longer nights.
Crowds
Moderate
Steady visitor numbers; the main sights are busiest around midday.
Prices
$$$
Mid-range hotel rates.

+Good chances for early aurora and fewer visitors.

–Weather is getting colder and wetter.

My tip for September

Book aurora tours for several nights to improve odds.

  • Northern Lights
  • Day trips
  • Hiking

How September compares

Against the other eleven months

1st of 12 overall in Reykjavik, 4th for weather, 8th for space, 8th for value. The emptiest month is November; the best value is November.

See all twelve months for Reykjavik

Weather

Weather in Reykjavik in September

In September Reykjavik averages a high of 10°C (50°F) and a low of 6°C (43°F), with about 134 mm of rain or snow. The warmest month is July (around 14°C) and the coolest is January (around 1°C); the wettest month is September.

Average high
10°C
50°F
Average low
6°C
43°F
Precipitation
134 mm

Climate data: ERA5 reanalysis 1991–2020 (Open-Meteo). Temperatures are averages of daily highs and lows.

Quick answers

Reykjavik in September: the questions people ask

Is September a good time to visit Reykjavik?
September is the best month to visit Reykjavik. It ranks 1 of 12 months in Reykjavik overall (4 for weather, 8 for space, 8 for value). The main upside: Good chances for early aurora and fewer visitors. The main downside: Weather is getting colder and wetter.
What is the weather like in Reykjavik in September?
Average highs are around 10°C and lows around 6°C. Expect about 134 mm of rain or snow. Cool and often wet, with longer nights. For comparison, the warmest month is July (around 14°C) and the coolest is January (around 1°C).
Is Reykjavik crowded in September?
Crowds are moderate. Steady visitor numbers; the main sights are busiest around midday. The quietest month is November.
How expensive is Reykjavik in September?
Prices are at level 3 of 5 ($$$). Mid-range hotel rates. The best-value month is November.
When is the best time to visit Reykjavik?
In the CrowdFreeViews month scores, May is the best month overall (this month). The quietest month is November and the best value is November.

Ready to book September in Reykjavik?

Good chances for early aurora and fewer visitors.

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