Iceland in may: average Weather, Temperature and Climate, Where to go?
Weather in Iceland in may 2025
In this section, you have access to the weather forecast for the month of may for most popular cities in Iceland. These forecasts are statistics for may from weather reports for over 10 years. The percentage indicates the probability of having the weather indicated.
Average weather in may in Reykjavík
very bad weather 17.8cm
Weather at 6am
5°C
Cloudy
31% of time
24%
22%
12%
Weather at 12pm
8°C
Cloudy
28% of time
24%
21%
16%
Weather at 6pm
8°C
Moderate rain at times
26% of time
23%
22%
19%
Weather at 3am
5°C
22%
22%
20%
18%
Where to go in Iceland in may?
Where to go in Iceland in may: destination map
Where to go in each region in may?
| East of Iceland (Hofn, Vatnajökul National Park, Seyðisfjörður...) | 6°C to 8°C | 6 à 9 days | 8°C | very bad weather |
| North of Iceland (Akureyri, Siglufjördur, Raufarhöfn...) | 6°C to 8°C | 3 à 8 days | 4°C to 5°C | very bad weather |
| South of Iceland (Landmannalaugar, Selfoss, Vík í Mýrdal...) | 3°C to 9°C | 6 à 8 days | 9°C | very bad weather* |
| South West of Iceland (Reykjavík, Grindavík, Keflavík...) | 8°C to 9°C | 7 à 8 days | 7°C to 8°C | very bad weather |
| West of Iceland (Borgarnes, Snaefellsnes, Ólafsvík...) | 7°C to 9°C | 5 à 8 days | 5°C to 7°C | very bad weather |
| Westfjords (Ísafjörður, Patreksfjörður, Djúpavík...) | 5°C to 8°C | 3 à 7 days | 5°C to 6°C | very bad weather |
Where should you go in Iceland in may when it comes to the weather?
Remember:
The climate in Iceland in may ranges from bad to very bad depending on the region and city.
The month of May is favored by a more remarkable rise in temperatures. Climatic conditions are improving gradually and it is now possible to have more sunny days during the month. As it is still cold, one must think about wearing comfortable clothes. The climate throughout May in Iceland is still unfavorable because of the persistent cold. Neither the frigid rains nor the snowfall have completely disappeared.
May in Reykjavik and South-western Iceland
The few sunny days during the first period of May indicates a marked improvement in climatic conditions. This is especially true as the temperatures are increasing and favor a relatively gentle atmosphere. On the other hand in mid-May, the rains begin to fall sporadically and towards the end of the month, wearing waterproof clothing is a must. The south of the country is experiencing a resurgence of rain and because of the wind speed that is quite strong, umbrellas are not really the best solution.
May in Akureyri and Northern Iceland
Expect snowfall during the first days of May in the north of the country. In fact, the temperatures are still cold, especially in the mornings. However, the weather in Iceland throughout May is gradually improving. One can then bet on beautiful sunny days towards the end of the month for their outings.
Climate in Iceland in may
Climate in Reykjavík in may
In the month of may, maximum temperature is 9°C and minimum temperature is 5°C (for an average temperature of 7°C). The climate is rather cold in this city in this month, but it is livable when dressing hot. With 91mm over 7 days, rain may occur during your journey. But this is reasonably and it will not be continuous.
| May | |||
| Average temperature | 7°C | ||
| Highest temperature | 9°C | ||
| Lowest temperature | 5°C | ||
| Sea temperature | 7.2°C | ||
| Rainfall | 91mm | ||
| Number of days with rainfall | 7 day(s) (22%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 16 | ||
| Cloud cover | 60% | ||
| Length of day | 18:26 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Akureyri in may
In the month of may, maximum temperature is 7°C and minimum temperature is -2°C (for an average temperature of 3°C). The climate is quite more than very fresh in this city in may. Do not forget to cover yourself! With 129mm over 8 days, rainfall can happen throughout your vacations. But this is reasonably and you will not be too bothered by it.
| May | |||
| Average temperature | 3°C | ||
| Highest temperature | 7°C | ||
| Lowest temperature | -2°C | ||
| Sea temperature | 4.2°C | ||
| Rainfall | 129mm | ||
| Number of days with rainfall | 8 day(s) (25%) | ||
| Humidity | 90% | ||
| Daily sunshine hours | 17 | ||
| Cloud cover | 65% | ||
| Length of day | 19:05 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Borgarnes in may
In may, the mean temperature in Borgarnes is 7°C (maximum temperature is 9°C and minimum temperature is 5°C). The climate is rather cold in that area in may, but it is liveable by dressing hot. With 91mm over 7 days, you will experience some showers during your stay. But this is reasonably and you will not be too bothered by it.
With a bad climate, may is not recommended month to go in that area.
| May | |||
| Average temperature | 7°C | ||
| Highest temperature | 9°C | ||
| Lowest temperature | 5°C | ||
| Sea temperature | 6.3°C | ||
| Rainfall | 91mm | ||
| Number of days with rainfall | 7 day(s) (22%) | ||
| Humidity | 82% | ||
| Daily sunshine hours | 16 | ||
| Cloud cover | 60% | ||
| Length of day | 18:35 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Djúpavík in may
In the month of may, the mean temperature in Djúpavík is 6°C (maximum temperature is 8°C and minimum temperature is 4°C). The climate is quite cold in that locality in may. Bring warm clothes! With 50mm over 3 days, the rain will not be a problem throughout your journey.
| May | |||
| Average temperature | 6°C | ||
| Highest temperature | 8°C | ||
| Lowest temperature | 4°C | ||
| Sea temperature | 5.1°C | ||
| Rainfall | 50mm | ||
| Number of days with rainfall | 3 day(s) (9%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 15 | ||
| Cloud cover | 57% | ||
| Length of day | 19:12 | ||
| Our opinion at whereandwhen.net | very bad |
Climate in Grindavík in may
In the month of may, the mean temperature in Grindavík is 7°C (maximum temperature is 8°C and minimum temperature is 6°C). The climate is rather cold there in this month. Plan to cover you well! With 126mm over 8 days, you will experience some showers for your vacations. But this is rather reasonably and it is only of temporary showers.
With an unfavorable weather, the month of may is not recommended month to go there in Iceland.
| May | |||
| Average temperature | 7°C | ||
| Highest temperature | 8°C | ||
| Lowest temperature | 6°C | ||
| Sea temperature | 7.7°C | ||
| Rainfall | 126mm | ||
| Number of days with rainfall | 8 day(s) (26%) | ||
| Humidity | 81% | ||
| Daily sunshine hours | 16 | ||
| Cloud cover | 58% | ||
| Length of day | 18:20 | ||
| Our opinion at whereandwhen.net | very bad |
All cities in Iceland in may
| Reykjavík in may | very bad weather |
| Akureyri in may | very bad weather |
| Borgarnes in may | very bad weather |
| Djúpavík in may | very bad weather |
| Grindavík in may | very bad weather |
| Hofn in may | very bad weather |
| Ísafjörður in may | very bad weather |
| Landmannalaugar in may | very bad weather |
| Ólafsvík in may | very bad weather |
| Patreksfjörður in may | very bad weather |
| Raufarhöfn in may | very bad weather |
| Selfoss in may | very bad weather |
| Seyðisfjörður in may | very bad weather |
| Siglufjördur in may | very bad weather |
| Snaefellsnes in may | very bad weather |
| Vatnajökul National Park in may | very bad weather |
| Vík í Mýrdal in may | very bad weather |
| Arnarstapi in may | very bad weather |
| Asbyrgi Canyon in may | very bad weather |
| Askja in may | very bad weather |
| Borgarfjörður eystri in may | very bad weather |
| Dettifoss in may | very bad weather |
Weather data for Iceland in may:
Weather data for Iceland in may 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.