Keflavík
August
Weather in Keflavík for August 2025
Your guide to Keflavík weather in August - trends and predictions
In general, the average temperature in Keflavík at the beginning of August is 11.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 10 °C by the end of August.
Expect significant rainfall in Keflavík during August, with an average of 18 rainy days.
Is August a good time to visit Keflavík? check out the best time to travel to Keflavík page.
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13
Dry days
18
Rainy days
0
Snow days
10°/9°
Temperatures
36 km/h
Avg max wind
79 %
Avg humidity
Keflavík in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  11° | 2 12° | 3 14° | ||||
| 4 12° | 5  12° | 6 11° | 7 11° | 8  11° | 9 11° | 10  11° |
| 11 12° | 12 11° | 13 10° | 14 10° | 15 10° | 16 11° | 17 10° |
| 18 9° | 19 8° | 20  9° | 21 10° | 22 8° | 23 8° | 24 9° |
| 25 8° | 26  9° | 27 10° | 28 11° | 29 10° | 30 11° | 31 11° |
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Temperatures trend during August in Keflavík
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Patchy rain possible | 11° /10° | 0.3 mm | 3 | |
| 2 Aug. | Patchy rain possible | 12° /9° | 0.7 mm | 3 | |
| 3 Aug. | Patchy rain possible | 14° /10° | 0.7 mm | 3 | |
| 4 Aug. | Light rain shower | 12° /10° | 7.3 mm | 3 | |
| 5 Aug. | Light rain | 12° /10° | 14.1 mm | 3 | |
| 6 Aug. | Patchy rain possible | 11° /10° | 0.7 mm | 3 | |
| 7 Aug. | Patchy rain possible | 11° /10° | 0 mm | 3 | |
| 8 Aug. | Cloudy | 11° /10° | 0 mm | 3 | |
| 9 Aug. | Patchy rain possible | 11° /9° | 0.1 mm | 3 | |
| 10 Aug. | Overcast | 11° /9° | 0 mm | 3 | |
| 11 Aug. | Patchy rain possible | 12° /10° | 0.3 mm | 3 | |
| 12 Aug. | Light drizzle | 11° /9° | 1.6 mm | 3 | |
| 13 Aug. | Light rain shower | 10° /9° | 3.9 mm | 3 | |
| 14 Aug. | Light rain | 10° /9° | 13.6 mm | 3 | |
| 15 Aug. | Patchy rain possible | 10° /8° | 0.7 mm | 3 | |
| 16 Aug. | Patchy rain possible | 11° /9° | 4 mm | 3 | |
| 17 Aug. | Overcast | 10° /7° | 0.1 mm | 3 | |
| 18 Aug. | Overcast | 9° /6° | 0.1 mm | 2 | |
| 19 Aug. | Cloudy | 8° /6° | 0 mm | 2 | |
| 20 Aug. | Sunny | 9° /7° | 0 mm | 3 | |
| 21 Aug. | Light rain | 10° /8° | 5.7 mm | 3 | |
| 22 Aug. | Patchy rain possible | 8° /7° | 0.3 mm | 2 | |
| 23 Aug. | Patchy rain possible | 8° /7° | 1.1 mm | 2 | |
| 24 Aug. | Patchy rain possible | 9° /7° | 0.1 mm | 2 | |
| 25 Aug. | Patchy rain possible | 8° /6° | 0 mm | 2 | |
| 26 Aug. | Partly cloudy | 9° /6° | 0 mm | 3 | |
| 27 Aug. | Light drizzle | 10° /8° | 2.2 mm | 3 | |
| 28 Aug. | Partly cloudy | 11° /9° | 0 mm | 4 | |
| 29 Aug. | Cloudy | 10° /8° | 0 mm | 3 | |
| 30 Aug. | Overcast | 11° /10° | 3 mm | 3 | |
| 31 Aug. | Light rain shower | 11° /10° | 21.1 mm | 3 | |
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Important Notice
Our weather forecast for Keflavík in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Keflavík forecast closer to your planned date for the most up-to-date weather information.
Keflavík in August - FAQ
What are the expected maximum and minimum temperatures in Keflavík during August?
During August, expect a variety of temperatures with highs around 10° and lows near 9°, suitable for diverse activities and preferences.
How much rainfall should be expected in Keflavík during August?
Moderate rainfall is anticipated in Keflavík during August, with a total of 81.6 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Keflavík during August?
The average wind speed in Keflavík during August is 36 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Keflavík in August?
As you prepare for your trip to Keflavík 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 Keflavík, 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
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