Reykjavík

Capital Region Weather in September

Average temperatures, rainfall, sunshine and the best places to visit in Capital Region, Iceland in September.

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Reykjavík Kópavogur Hafnarfjördur Mosfellsbær

Are you planning a trip a to Capital Region, Iceland in September and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Capital Region in September

Capital Region, Iceland is a region in Iceland. September in Capital Region generally has mild temperatures, with high precipitation.

Temperatures

You can expect mild maximum daytime temperatures of around 12°C (54°F) and nighttime temperatures around 6°C (43°F) in Reykjavík.

To explore the conditions in Capital Region, Iceland in more detail, check the map below.

Precipitation

In September, precipitation varies across different areas. From high rainfall in Álftanes with an average of 143 mm (5.6 in) to high rainfall in Mosfellsbær with 149 mm (5.9 in).

Average sunshine

Sunshine amounts are decent in most places. Reykjavík gets approximately 121 hours of sunlight in September, offering a reasonable amount of both bright and cloudy periods. Curious about sunnier destinations? Our weather planner makes it easy to find places worldwide with pleasant weather.

Explore Capital Region by month

Pick a month to see the average temperature, rainfall and sunshine in Capital Region — and find the best time to visit. (based on Reykjavík)

January3°C (37°F) February3°C (37°F) March4°C (39°F) April7°C (45°F) May11°C (52°F) June14°C (57°F) This monthJuly16°C (61°F) August15°C (59°F) September12°C (54°F) October8°C (46°F) November5°C (41°F) December4°C (39°F)
Best Time to Visit Capital Region →

Best Places to Visit in Capital Region in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Capital Region.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Capital Region

What is the weather like in September for some of the most popular destinations in Capital Region, Iceland?

Temperature range in Capital Region (September)

Precipitation variation in Capital Region (September)

Reykjavík

In September Reykjavík generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
15°C (59°F)
12°C (54°F)
8°C (46°F)
Min temperature
9°C (48°F)
6°C (43°F)
2°C (36°F)
Monthly sun hours
154 hours
121 hours
92 hours
Monthly rainfall
109 mm (4.3 in)
145 mm (5.7 in)
122 mm (4.8 in)
Monthly rainy days
18 days
18 days
19 days
Weather conditions
unpleasant
poor
poor
Climate in Reykjavík →

Kópavogur

In September Kópavogur generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
15°C (59°F)
12°C (54°F)
8°C (46°F)
Min temperature
9°C (48°F)
6°C (43°F)
2°C (36°F)
Monthly sun hours
154 hours
121 hours
92 hours
Monthly rainfall
111 mm (4.4 in)
146 mm (5.7 in)
123 mm (4.8 in)
Monthly rainy days
18 days
18 days
20 days
Weather conditions
unpleasant
poor
poor
Climate in Kópavogur →

Hafnarfjördur

In September Hafnarfjördur generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
15°C (59°F)
12°C (54°F)
8°C (46°F)
Min temperature
9°C (48°F)
6°C (43°F)
3°C (37°F)
Monthly sun hours
154 hours
121 hours
92 hours
Monthly rainfall
111 mm (4.4 in)
146 mm (5.7 in)
123 mm (4.8 in)
Monthly rainy days
18 days
18 days
20 days
Weather conditions
unpleasant
poor
poor
Climate in Hafnarfjördur →

Mosfellsbær

In September Mosfellsbær generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
15°C (59°F)
12°C (54°F)
8°C (46°F)
Min temperature
9°C (48°F)
6°C (43°F)
2°C (36°F)
Monthly sun hours
154 hours
121 hours
92 hours
Monthly rainfall
112 mm (4.4 in)
149 mm (5.9 in)
125 mm (4.9 in)
Monthly rainy days
18 days
18 days
19 days
Weather conditions
unpleasant
poor
poor
Climate in Mosfellsbær →

Garðabær

In September Garðabær generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 6°C (43°F) and high monthly rainfall. So on average the conditions are poor that month.

« August
September
October »
August
September
October
Max temperature
15°C (59°F)
12°C (54°F)
8°C (46°F)
Min temperature
9°C (48°F)
6°C (43°F)
3°C (37°F)
Monthly sun hours
154 hours
121 hours
92 hours
Monthly rainfall
111 mm (4.4 in)
147 mm (5.8 in)
123 mm (4.8 in)
Monthly rainy days
18 days
18 days
20 days
Weather conditions
unpleasant
poor
poor
Climate in Garðabær →

Is your destination not in the list? Have a look at all destinations in Capital Region, in Iceland.

Popular cities in September

Day & night temperatures, rainfall and average weather in Capital Region in September.

City Weather Day temp Night temp Rainfall
Reykjavík 12°C (54°F) 6°C (43°F) 145 mm (5.7 in)
Kópavogur 12°C (54°F) 6°C (43°F) 146 mm (5.7 in)
Hafnarfjördur 12°C (54°F) 6°C (43°F) 146 mm (5.7 in)
Mosfellsbær 12°C (54°F) 6°C (43°F) 149 mm (5.9 in)
Garðabær 12°C (54°F) 6°C (43°F) 147 mm (5.8 in)
Álftanes 12°C (54°F) 7°C (45°F) 143 mm (5.6 in)

Capital Region weather in September: frequently asked questions

What is the weather like in Capital Region, Iceland in September?

Capital Region, Iceland typically experiences poor weather in September, part of the season. Daytime highs in Reykjavík average around 12°C (54°F), and temperatures drop to about 6°C (43°F) at night.

What is the average temperature in Capital Region, Iceland in September?

In Reykjavík, the average daytime high in September is 12°C (54°F), while nighttime temperatures drop to around 6°C (43°F).

Does Capital Region, Iceland get a lot of rain in September?

Yes, September tends to be a wetter month in Capital Region, Iceland. Average rainfall in Reykjavík sits around 145 mm (5.7 in).

Is September a Good Time to Visit Capital Region, Iceland?

In our view, September might not be the best time to travel to Capital Region, Iceland with often poor weather in Reykjavík.

On average, the best time to visit Capital Region, Iceland is in June and July with generally tolerable weather in Reykjavík. The weather in January, February, March, April, September, October, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Capital Region.

Weather and climate has detailed information for every country in the world. Are you going to Iceland? Get detailed historical weather averages for many cities in Iceland.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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