The weather in May in Iceland
It's cold in May in Iceland with an average temperature of 7°C. Temperatures this month range from a low of 5°C to a high of 10°C. At night, you can expect temperatures between 0°C and 5°C.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Iceland. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 17°C in 2017, Iceland reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was -7°C in 2022. The extreme nighttime temperatures ranged from a lowest recorded value of -11°C to a highest value of 10°C.
Precipitation and snowfall
In May, there is an average of 90 mm of precipitation, spread over 12 days. Of the total precipitation, about 7,7 cm falls as snow in May. The wind speed is around 5 Bft, mostly coming from the Southeast.
Daily weather in May for Iceland
Click on any day in May to get detailed info about the usual weather on that day in Iceland. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Iceland | New York | |
|---|---|---|
| Average temperature | 7°C | 22°C |
| Max. temperature | 10°C | 28°C |
| Min. temperature | 0°C | -5°C |
| Total precipitation | 90 mm | 105 mm |
| Rainy days | 12 days | 14 days |
| Total snowfall | 7,7 cm | 0 cm |
| Snowy days | 4 days | 0 days |
Start of May
The month of May starts in Iceland with cold temps, averaging around 6°C during the day and nights around 1°C.
Mid May
By mid-May, daytime temps rise to around 8°C, with nights around 2°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Iceland is around 10°C, while nighttime temps are about 4°C. A shower might pop up, but overall, the weather will be dry and sunny.
Find affordable vacations to Iceland
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Check out the climate of Iceland for all months and discover the best travel time
The climate in Iceland is based on weather data from Reykjavík. Other places, like VíkHúsavík, might have different weather. You can check out all destinations in Iceland to get the full picture of the climate.
Temperature charts
These charts show the average temperatures in May in Iceland. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Iceland
Temperature in May in Iceland over the years
Precipitation charts
These charts show the average amount of precipitation in May in Iceland. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Iceland
Total precipitation in May in Iceland over the years
Daily Snowfall in May in Iceland
Snowfall in May in Iceland per year
Daily UV index in May in Iceland
This chart shows the average daily UV index in May in Iceland, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Iceland
The weather in May in Iceland is rated 4 out of 5 stars by 1 visitor. Have you been to Iceland? Share your weather experience to help other visitors.
Write your own review
There were many sunny days with pleasant temperatures. It rained occasionally, but not too much. Nice change of weather!— This text is automatically translated to English
Have you been to Iceland in May?
Share your weather experience in May in Iceland.
Average weather in Iceland by month
Click on a month below to see detailed weather info for Iceland. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.