Weather in Iceland for May 2025
In general, the average temperature in Iceland at the beginning of May is 7.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 9 °C by the end of May.
Iceland experiences an exceptionally high level of rainfall in May, with more than 24 rainy days on average.
Is May a good time to visit Iceland? check out the best time to travel to Iceland page.
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Iceland in May average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  5° | 2  6° | 3 8° | 4 7° | |||
| 5 8° | 6 9° | 7 8° | 8  8° | 9 9° | 10 9° | 11 10° |
| 12 8° | 13  7° | 14 6° | 15 6° | 16 7° | 17 8° | 18 8° |
| 19 8° | 20 6° | 21 7° | 22 7° | 23 7° | 24 9° | 25 10° |
| 26 9° | 27 10° | 28 10° | 29 8° | 30 8° | 31 8° |
You can click on date
Temperatures trend during May in Iceland
May weather day by day
| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 May | Overcast | 5° /1° | 0.1 mm | 0 cm | |
| 2 May | Patchy rain possible | 6° /2° | 2.5 mm | 0 cm | |
| 3 May | Patchy rain possible | 8° /4° | 2.2 mm | 0 cm | |
| 4 May | Patchy rain possible | 7° /3° | 3.2 mm | 0 cm | |
| 5 May | Patchy rain possible | 8° /4° | 6 mm | 0 cm | |
| 6 May | Overcast | 9° /4° | 3.9 mm | 0 cm | |
| 7 May | Patchy rain possible | 8° /6° | 5.6 mm | 0 cm | |
| 8 May | Moderate rain at times | 8° /5° | 3.6 mm | 0.1 cm | |
| 9 May | Moderate rain at times | 9° /5° | 2.6 mm | 0 cm | |
| 10 May | Patchy rain possible | 9° /6° | 2.2 mm | 0 cm | |
| 11 May | Moderate rain at times | 10° /6° | 4.5 mm | 0 cm | |
| 12 May | Moderate or heavy rain shower | 8° /5° | 11.9 mm | 0 cm | |
| 13 May | Heavy rain at times | 7° /4° | 7.6 mm | 0 cm | |
| 14 May | Moderate or heavy rain shower | 6° /2° | 6 mm | 0 cm | |
| 15 May | Moderate rain at times | 6° /2° | 6.3 mm | 0 cm | |
| 16 May | Patchy rain possible | 7° /1° | 3.3 mm | 0 cm | |
| 17 May | Patchy rain possible | 8° /4° | 1.3 mm | 0 cm | |
| 18 May | Moderate rain at times | 8° /5° | 2.6 mm | 0 cm | |
| 19 May | Moderate or heavy rain shower | 8° /4° | 6.6 mm | 0 cm | |
| 20 May | Patchy rain possible | 6° /5° | 2.3 mm | 0 cm | |
| 21 May | Moderate or heavy rain shower | 7° /4° | 5.3 mm | 0 cm | |
| 22 May | Patchy rain possible | 7° /4° | 4 mm | 0 cm | |
| 23 May | Heavy rain at times | 7° /4° | 9.8 mm | 0.1 cm | |
| 24 May | Patchy rain possible | 9° /6° | 12.2 mm | 0 cm | |
| 25 May | Moderate rain at times | 10° /6° | 2.3 mm | 0 cm | |
| 26 May | Moderate or heavy rain shower | 9° /6° | 11.7 mm | 0 cm | |
| 27 May | Overcast | 10° /5° | 0.7 mm | 0 cm | |
| 28 May | Heavy rain at times | 10° /6° | 10.2 mm | 0 cm | |
| 29 May | Patchy rain possible | 8° /6° | 3.8 mm | 0 cm | |
| 30 May | Patchy rain possible | 8° /6° | 6.2 mm | 0 cm | |
| 31 May | Overcast | 8° /6° | 6.6 mm | 0 cm | |
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Guide for Iceland in May
In May, Iceland experiences a transition from late spring to early summer, bringing about notable changes in the weather. At the beginning of the month, Iceland's weather is characterized by cool temperatures and a mix of sun and clouds.
The average temperature in Reykjavik at the start of May is around 7°, with daylight hours increasing as the country moves closer to the summer solstice. However, it's important to note that Iceland's weather can be quite unpredictable, so visitors should be prepared for sudden changes.
By the end of May, Iceland sees a significant shift in its weather patterns. The average temperature in Reykjavik rises to around 10°, and the country experiences longer daylight hours, providing more opportunities for outdoor activities and sightseeing.
Additionally, the end of May marks the beginning of the peak tourist season in Iceland, as travelers flock to the country to witness the stunning landscapes and natural attractions in the favorable weather conditions.
Overall, May in Iceland offers a mix of spring and early summer weather, making it an ideal time to explore the country's unique natural beauty.
Iceland in May - FAQ
What to pack to Iceland in May?
As you prepare for your trip to Iceland in May, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Iceland, during May, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
Quick links
Where is Iceland?Get accurate weather forecasts for Iceland, located at latitude 64.135 and longitude -21.895. Stay updated with localized weather information tailored for Iceland.