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Weather in Iceland, California for August 2025

Your guide to Iceland weather in August - trends and predictions

    Temperatures

  • The forecast for the next days in Iceland predicts temperatures to be around 29 °F, close to the historical average.

  • In general, the average temperature in Iceland at the beginning of August is 25.7 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 25.3 °F by the end of August.

    • Rain 🌧️

  • With an average of 4 rainy days, Iceland experiences minimal rainfall in August.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
27
Dry days
Average rainy days
4
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/8°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
39 %
Avg humidity

Iceland Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
24°
2
Sunny
26°
3
Sunny
26°
4
Sunny
23°
5
Sunny
25°
6
Sunny
27°
7
Sunny
29°
8
Sunny
30°
9
Sunny
31°
10
Sunny
32°
11
Sunny
32°
12
Partly cloudy
32°
13
Sunny
33°
14
Sunny
33°
15
Sunny
22°
16
Sunny
24°
17
Sunny
21°
18
Sunny
22°
19
Sunny
22°
20
Sunny
22°
21
Sunny
22°
22
Sunny
19°
23
Patchy rain possible
12°
24
Moderate rain at times
10°
25
Sunny
18°
26
Sunny
24°
27
Sunny
26°
28
Sunny
26°
29
Sunny
28°
30
Sunny
28°
31
Partly cloudy
27°

Temperatures trend during August in Iceland

See the weather trend as well as the moving average line

August weather in Iceland day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Sunny
Sunny
 24° /14° 0 mm 2.8
Aug. 2 Sunny
Sunny
 26° /9° 0 mm 3
Aug. 3 Sunny
Sunny
 26° /11° 0 mm 2.8
Aug. 4 Sunny
Sunny
 23° /9° 0 mm 2.6
Aug. 5 Sunny
Sunny
 25° /8° 0 mm 0
Aug. 6 Sunny
Sunny
 27° /9° 0 mm 4
Aug. 7 Sunny
Sunny
 29° /10° 0 mm 5
Aug. 8 Sunny
Sunny
 30° /12° 0 mm 6
Aug. 9 Sunny
Sunny
 31° /13° 0 mm 6
Aug. 10 Sunny
Sunny
 32° /14° 0 mm 6
Aug. 11 Sunny
Sunny
 32° /14° 0 mm 6
Aug. 12 Partly cloudy
Partly cloudy
 32° /15° 0.1 mm 6
Aug. 13 Sunny
Sunny
 33° /16° 0 mm 6
Aug. 14 Sunny
Sunny
 33° /16° 0 mm 6
Aug. 15 Sunny
Sunny
 22° /7° 0 mm 6
Aug. 16 Sunny
Sunny
 24° /6° 0 mm 6
Aug. 17 Sunny
Sunny
 21° /7° 0 mm 6
Aug. 18 Sunny
Sunny
 22° /6° 0 mm 6
Aug. 19 Sunny
Sunny
 22° /7° 0 mm 6
Aug. 20 Sunny
Sunny
 22° /6° 0 mm 6
Aug. 21 Sunny
Sunny
 22° /5° 0 mm 6
Aug. 22 Sunny
Sunny
 19° /6° 0 mm 5
Aug. 23 Patchy rain possible
Patchy rain possible
 12° /3° 0.5 mm 3
Aug. 24 Moderate rain at times
Moderate rain at times
 10° /2° 3 mm 3
Aug. 25 Sunny
Sunny
 18° /0° 0 mm 5
Aug. 26 Sunny
Sunny
 24° /5° 0 mm 6
Aug. 27 Sunny
Sunny
 26° /9° 0 mm 7
Aug. 28 Sunny
Sunny
 26° /7° 0 mm 7
Aug. 29 Sunny
Sunny
 28° /11° 0 mm 7
Aug. 30 Sunny
Sunny
 28° /11° 0 mm 7
Aug. 31 Partly cloudy
Partly cloudy
 27° /11° 0 mm 7
Next
Important Notice
Our weather forecast for Iceland 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 Iceland forecast closer to your planned date for the most up-to-date weather information.
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Iceland in August - FAQ

What are the expected maximum and minimum temperatures in Iceland during August?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Iceland during August?
Rainfall in Iceland during August is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 4 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Iceland during August?
The average wind speed in Iceland during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in Iceland

Explore the daily rainfall trends and prepare for Icelands August weather 💧

UV exposure in Iceland during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️

Quick links

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Location coordinates Where is Iceland?

Get accurate weather forecasts for Iceland, located at latitude 39.375 and longitude -120.026. Stay updated with localized weather information tailored for Iceland.

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