Kópavogur Weather in August
With daytime temperatures of 15°C (59°F) and nighttime lows of 9°C (48°F), August in Kópavogur brings moderate temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 111 mm (4.4 in) falls on average.
Rainfall in Kópavogur in August
Historically, the month has about 18 days of rain, averaging 111 mm (4.4 in) in total. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Kópavogur in August
Daytime temperatures in Kópavogur reach 15°C (59°F) in August, dropping to 9°C (48°F) at night. August is typically considered a summer month. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 9°C (48°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.
Sunshine in Kópavogur in August
With about 154 hours of sunshine, the area enjoys a nice balance of sun and overcast, creating a pleasant environment.
Wind Speed in Kópavogur in August
Wind speeds average 5 m/s (10 knots) during August. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in August
The water sits at 11°C (52°F) this month, which is well below what most people consider swimmable. Wetsuits help, but expect it to still feel cold.If your ideal day consists of dry skies and pleasant temperatures, June and July typically offer the best circumstances for Kópavogur.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Kópavogur's climate page.
Kópavogur Temperature in August
Min Temperature
9°C (48°F)
Max Temperature
15°C (59°F)
Water Temperature
11°C (52°F) *
Chance of Rain
59%
Precipitation
111 mm (4.4 in)
Rainy days
18 days
Humidity
81% *
Windspeed
5 m/s (10 knots) *
Sunshine
154 hours *
Percentage Sunshine
31% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Kópavogur typically stay consistent throughout August, with daily highs averaging around 15°C (59°F). Nights are cool, with lows typically ranging from 7°C (45°F) to 9°C (48°F).
Average temperatures in August
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in August
Historical weather for Kópavogur in August
Browse day-by-day weather records for Kópavogur spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Kópavogur historical weather extremes in August
Based on 49 years of weather observations in Kópavogur between 1976 and 2025, these are the recorded extremes.
- The hottest August day on record in Kópavogur reached 25°C (77°F) (August 11, 2004).
- The coldest August day was on August 27, 1992, with a maximum of 7°C (45°F).
- The lowest overnight temperature recorded in August was 1°C (34°F) (August 27, 1982).
- The wettest day in August Kópavogur was on August 31, 2014 with 48 mm (1.9 in) of precipitation.
Best Places in Iceland in August
Find out more about the weather in Iceland and which places have the best travel conditions in this month. See all of Iceland in August →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Kópavogur in August
The weather can be unpredictable in August, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. With water temperatures around 11°C (52°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Kópavogur in August
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Iceland, check out our Kópavogur's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Kópavogur climate overview or explore weather in Iceland.
