Iceland in august: average Weather, Temperature and Climate, Where to go?
Weather in Iceland in august 2025
Here, check out the weather forecast for the month of august for most popular cities in Iceland. These predictions are probabilities for august from weather reports for over 10 years. The percentage indicates the probability of having the weather mentioned.
Average weather in august in Reykjavík
tolerable weather
Weather at 6am
10°C
Partly Cloudy
27% of time
25%
21%
13%
Weather at 12pm
13°C
Cloudy
29% of time
28%
18%
14%
Weather at 6pm
13°C
Moderate rain at times
28% of time
22%
22%
18%
Weather at 3am
10°C
29%
19%
18%
17%
Where to go in Iceland in august?
Where to go in Iceland in august: destination map
Where to go in each region in august?
| East of Iceland (Hofn, Vatnajökul National Park, Seyðisfjörður...) | 11°C to 13°C | 7 à 9 days | 11°C | bad weather* |
| North of Iceland (Akureyri, Siglufjördur, Raufarhöfn...) | 12°C to 13°C | 4 à 10 days | 9°C to 10°C | bad weather* |
| South of Iceland (Landmannalaugar, Selfoss, Vík í Mýrdal...) | 9°C to 14°C | 6 à 9 days | 12°C | tolerable weather* |
| South West of Iceland (Reykjavík, Grindavík, Keflavík...) | 13°C to 14°C | 7 days | 12°C | tolerable weather |
| West of Iceland (Borgarnes, Snaefellsnes, Ólafsvík...) | 12°C to 14°C | 5 à 7 days | 11°C to 12°C | bad weather* |
| Westfjords (Ísafjörður, Patreksfjörður, Djúpavík...) | 10°C to 12°C | 4 à 7 days | 9°C to 11°C | bad weather |
Where should you go in Iceland in august when it comes to the weather?
Remember:
The climate in Iceland in august ranges from tolerable to very bad depending on the region and city.
As in July, it is relatively mild in Iceland. However, the climate is deteriorating rapidly in the north due to the increase in precipitation. The sun, the rain and the cloud thinnings take turns during the month of August. This means that on one day, the climate throughout August in Iceland is magnificent - while the next, it is possible to face intense rains. These same climatic characteristics are observable throughout the whole of Iceland.
August in Reykjavik and South-western Iceland
The climate in Reykjavik is mild, with temperatures varying between 10˚ C and 15˚ C. However due to rainfall, one should expect rainy days that are more numerous compared to those of the previous month. However, the first twenty days of the month are still mild - with sunny or partly sunny days. It is especially towards the end of the month that waterproof clothes become indispensable.
August in Akureyri and Northern Iceland
In the town of Akureyri, rains dominate the weather in Iceland throughout August. Indeed, the rain increases in both intensity and frequency. There are more rainy days than sunny days at this point in time. During the month, it is not uncommon to have several rainy episodes succeeding each other in the same day.
Climate in Iceland in august
Climate in Reykjavík in august
In august, maximum temperature is 14°C and minimum temperature is 10°C (for an average temperature of 12°C). The climate is fairly cold in this location in this month, but it is endurable by dressing warm. With 98mm over 7 days, you will experience some showers throughout your stay. But this is pretty reasonably and you will not be too bothered by it.
With proper weather, the month of august is okay (but not good time) for traveling there.
| August | |||
| Average temperature | 12°C | ||
| Highest temperature | 14°C | ||
| Lowest temperature | 10°C | ||
| Sea temperature | 11.4°C | ||
| Rainfall | 98mm | ||
| Number of days with rainfall | 7 day(s) (22%) | ||
| Humidity | 88% | ||
| Daily sunshine hours | 14 | ||
| Cloud cover | 60% | ||
| Length of day | 16:23 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Akureyri in august
In the month of august, the mean temperature in Akureyri is 8°C (maximum temperature is 13°C and minimum temperature is 4°C). The climate is relatively cold in that area in august, but it is tolerable when dressing cosy. With 165mm over 10 days, you will experience some showers throughout your holidays. But this is rather moderate and you will not be too bothered by it.
With a bad weather, the month of august is not recommended month to go in this city.
| August | |||
| Average temperature | 8°C | ||
| Highest temperature | 13°C | ||
| Lowest temperature | 4°C | ||
| Sea temperature | 9.4°C | ||
| Rainfall | 165mm | ||
| Number of days with rainfall | 10 day(s) (33%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 14 | ||
| Cloud cover | 65% | ||
| Length of day | 16:46 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Borgarnes in august
In the month of august, the mean temperature in Borgarnes is 12°C (maximum temperature is 14°C and minimum temperature is 10°C). The climate is relatively cool in this location in august, but it is tolerable by dressing hot. With 98mm over 7 days, you will experience some showers for your stay. But this is rather reasonably and it is only of temporary showers.
With a correct weather, the month of august is okay (but not the best month) for traveling in Borgarnes.
| August | |||
| Average temperature | 12°C | ||
| Highest temperature | 14°C | ||
| Lowest temperature | 10°C | ||
| Sea temperature | 10.6°C | ||
| Rainfall | 98mm | ||
| Number of days with rainfall | 7 day(s) (22%) | ||
| Humidity | 88% | ||
| Daily sunshine hours | 15 | ||
| Cloud cover | 60% | ||
| Length of day | 16:29 | ||
| Our opinion at whereandwhen.net | tolerable |
Climate in Djúpavík in august
In the month of august, maximum temperature is 12°C and minimum temperature is 8°C (for an average temperature of 10°C). The climate is quite cool in this location in the month of august, but it is livable when dressing hot. With 65mm over 4 days, you will experience some showers for your journey. But this is pretty reasonably and you will not be too bothered by it.
With an unfavorable weather, august is not recommended month to go in Djúpavík in Iceland.
| August | |||
| Average temperature | 10°C | ||
| Highest temperature | 12°C | ||
| Lowest temperature | 8°C | ||
| Sea temperature | 8.8°C | ||
| Rainfall | 65mm | ||
| Number of days with rainfall | 4 day(s) (12%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 15 | ||
| Cloud cover | 61% | ||
| Length of day | 16:49 | ||
| Our opinion at whereandwhen.net | bad |
Climate in Grindavík in august
In the month of august, maximum temperature is 13°C and minimum temperature is 11°C (for an average temperature of 12°C). The climate is relatively fresh in this city in august, but it is tolerable by dressing warm. With 124mm over 7 days, rainfall can happen for your trip. But this is reasonably and it will not be continuous.
With proper weather, the month of august is okay (but not good month) for traveling there in Iceland.
| August | |||
| Average temperature | 12°C | ||
| Highest temperature | 13°C | ||
| Lowest temperature | 11°C | ||
| Sea temperature | 11.5°C | ||
| Rainfall | 124mm | ||
| Number of days with rainfall | 7 day(s) (24%) | ||
| Humidity | 85% | ||
| Daily sunshine hours | 14 | ||
| Cloud cover | 60% | ||
| Length of day | 16:19 | ||
| Our opinion at whereandwhen.net | tolerable |
All cities in Iceland in august
| Reykjavík in august | tolerable weather |
| Akureyri in august | very bad weather |
| Borgarnes in august | tolerable weather |
| Djúpavík in august | bad weather |
| Grindavík in august | tolerable weather |
| Hofn in august | bad weather |
| Ísafjörður in august | bad weather |
| Landmannalaugar in august | bad weather |
| Ólafsvík in august | bad weather |
| Patreksfjörður in august | bad weather |
| Raufarhöfn in august | bad weather |
| Selfoss in august | tolerable weather |
| Seyðisfjörður in august | tolerable weather |
| Siglufjördur in august | tolerable weather |
| Snaefellsnes in august | bad weather |
| Vatnajökul National Park in august | bad weather |
| Vík í Mýrdal in august | bad weather |
| Arnarstapi in august | bad weather |
| Asbyrgi Canyon in august | bad weather |
| Askja in august | very bad weather |
| Borgarfjörður eystri in august | bad weather |
| Dettifoss in august | bad weather |
Weather data for Iceland in august:
Weather data for Iceland in august is derived from an average of the weather forecast since 2009 in Iceland. There is a margin of error and these forecasts are to be considered as general information only. The weather in Iceland can vary slightly from year to year, but these predictions should limit surprises. So you can pack your bags and check when is the best time to go to Iceland.