Weather in Reykjavik in September 2024
Average weather
Average temperature in Reykjavik in September
The expected average maximum temperature in September is +54°F with a maximum of +63°F and a minimum of +36°F.
The average maximum temperature goes up 7% by the end of the month, compared with the beginning of the month, from +54°F to +55°F.
Is Reykjavik warm or cold in September?
Reykjavik is typically chill in September.
Maximum temperatures go down compared to the previous month from +57°F to +52°F. The minimum temperature also goes down from +48°F to +43°F.
Pack a jumper and a jacket as there will be cooler temperatures.
Take a look at how September is compared to other months in Reykjavik:
Climate in Reykjavik in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +57°F | +52°F | +45°F | ||||
| Min. temperature | ||||||
| +36°F | +27°F | +14°F | ||||
| Max. temperature | ||||||
| +75°F | +64°F | +59°F | ||||
| Rainfall | ||||||
| 88 mm | 98 mm | 85 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 4 m/s | ||||
| Humidity | ||||||
| 79% | 78% | 77% | ||||
| Air pressure | ||||||
| 1006 HPa | 1003 HPa | 1002 HPa | ||||
| Sunny days | ||||||
| 3 | 3 | 4 | ||||
| Cloudy days | ||||||
| 18 | 16 | 17 | ||||
| Rainy days | ||||||
| 10 | 11 | 9 | ||||
| Snowy days | ||||||
| 0 | 0 | 1 | ||||
September weather is still as ok as in August. It’s getting colder in September. From +57°F in the day, the average maximum temperature lowers to +52°F. Prepare for more rain. Average rainfall goes from 88 mm to 98 mm. It feels drier, as humidity decreases from 79% to 78%. The average wind speed doesn’t change much during September, staying around 3 m/s. The amount of sunny days stay about the same, averaging 3 sunny days during the month.
October brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 10 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Reykjavik is gradually increasing during September, going from 3 m/s to 4 m/s over the course of the month.
Rain
How was the weather last September in Reykjavik?
Climate Change Over the Years
The climate in Reykjavik in September has not changed that much over the last 43 years.
The average temperature was the lowest in 2013 (+50°F) and the highest in 2006 (+59°F). The driest year was 2015 with only 15 mm of rainfall, and the wettest year was 2021 with 214 mm.
FAQ
Is September a good time to visit Reykjavik?
Can you sunbathe in Reykjavik in September?
Is Reykjavik rainy in September?
Is it sunny in Reykjavik in September?
Monthly weather in Reykjavik
Source of the data
For this page, we’ve looked at the typical weather in Reykjavik, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.