Weather in Iceland for August 2025
In general, the average temperature in Iceland at the beginning of August is 13 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 12.3 °C by the end of August.
Iceland experiences heavy rainfall in August, with over 20 rainy days and an average total precipitation 86.8 mm.
Is August a good time to visit Iceland? check out the best time to travel to Iceland page.
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Iceland in August average weather
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  13° | 2  13° | 3 13° | ||||
| 4 13° | 5  13° | 6  13° | 7 13° | 8 13° | 9  14° | 10 14° |
| 11 14° | 12 14° | 13  13° | 14 13° | 15 12° | 16 13° | 17 11° |
| 18 12° | 19 13° | 20 12° | 21 12° | 22 12° | 23 13° | 24 13° |
| 25 12° | 26 12° | 27 13° | 28 12° | 29 12° | 30 12° | 31 13° |
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Temperatures trend during August in Iceland
August weather day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 13° /9° | 1.6 mm | 3 | |
| 2 Aug. | Overcast | 13° /8° | 0.3 mm | 3 | |
| 3 Aug. | Patchy rain possible | 13° /8° | 0.4 mm | 4 | |
| 4 Aug. | Patchy rain possible | 13° /8° | 2.2 mm | 3 | |
| 5 Aug. | Heavy rain at times | 13° /9° | 6.3 mm | 3 | |
| 6 Aug. | Moderate rain at times | 13° /9° | 4.4 mm | 3 | |
| 7 Aug. | Patchy rain possible | 13° /9° | 5.7 mm | 3 | |
| 8 Aug. | Overcast | 13° /9° | 2.6 mm | 3 | |
| 9 Aug. | Sunny | 14° /9° | 3 mm | 4 | |
| 10 Aug. | Overcast | 14° /9° | 0.8 mm | 4 | |
| 11 Aug. | Overcast | 14° /10° | 1.7 mm | 4 | |
| 12 Aug. | Patchy rain possible | 14° /9° | 0.5 mm | 4 | |
| 13 Aug. | Partly cloudy | 13° /9° | 1.2 mm | 4 | |
| 14 Aug. | Partly cloudy | 13° /8° | 3 mm | 3 | |
| 15 Aug. | Overcast | 12° /8° | 0.9 mm | 3 | |
| 16 Aug. | Patchy rain possible | 13° /8° | 1.2 mm | 3 | |
| 17 Aug. | Patchy rain possible | 11° /9° | 5.8 mm | 3 | |
| 18 Aug. | Patchy rain possible | 12° /8° | 2.9 mm | 3 | |
| 19 Aug. | Overcast | 13° /8° | 0.6 mm | 3 | |
| 20 Aug. | Sunny | 12° /7° | 0.1 mm | 4 | |
| 21 Aug. | Moderate rain at times | 12° /7° | 1.9 mm | 3 | |
| 22 Aug. | Patchy rain possible | 12° /6° | 1.4 mm | 3 | |
| 23 Aug. | Patchy rain possible | 13° /7° | 1.6 mm | 4 | |
| 24 Aug. | Patchy rain possible | 13° /8° | 0.2 mm | 3 | |
| 25 Aug. | Overcast | 12° /8° | 0.5 mm | 3 | |
| 26 Aug. | Overcast | 12° /7° | 7.2 mm | 3 | |
| 27 Aug. | Heavy rain at times | 13° /8° | 2.5 mm | 3 | |
| 28 Aug. | Patchy rain possible | 12° /9° | 4.2 mm | 3 | |
| 29 Aug. | Patchy rain possible | 12° /8° | 1 mm | 3 | |
| 30 Aug. | Patchy rain possible | 12° /8° | 6.9 mm | 3 | |
| 31 Aug. | Overcast | 13° /9° | 14.2 mm | 3 | |
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Guide for Iceland in August
In August, Iceland experiences a cool and variable climate, with average temperatures ranging from 10° to 13°. At the beginning of the month, the weather in Iceland is generally mild, with temperatures hovering around 12° and occasional light showers.
The days are long, providing ample daylight for exploring the stunning landscapes and natural attractions.
Towards the end of August, the weather in Iceland begins to transition, with a slight drop in temperatures to around 10°. The days start to become noticeably shorter as the summer season gradually gives way to autumn.
Visitors can expect a mix of sunny spells and overcast skies, with intermittent rain showers. It's advisable to pack layers and waterproof clothing to stay comfortable while enjoying outdoor activities.
Iceland's weather in August offers a unique opportunity to witness the country's breathtaking natural beauty in a state of transition.
From the lush greenery to the dramatic coastlines and geothermal wonders, travelers can experience the diverse landscapes against the backdrop of the changing weather.
Overall, August presents a fantastic opportunity to explore Iceland's natural wonders before the arrival of the cooler autumn months.
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Iceland in August - FAQ
What to pack to Iceland in August?
As you prepare for your trip to Iceland in August, 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 August, 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
August rainfall patterns in Iceland
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