Iceland

Iceland Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Iceland in August.

Thinking about venturing to Iceland this August and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Iceland in August

August in Iceland generally has temperatures that range from cold to mild, with precipitation levels ranging from moderate to heavy. During August, summer is in full swing.

Temperatures

During the day the temperature is cold in Jokulsarlon Glacial Lagoon at 10°C (50°F) and mild in Hella at 16°C (61°F). As night falls, temperatures generally drop to 9°C (48°F) in Hella and 6°C (43°F) in Jokulsarlon Glacial Lagoon.

To learn more about the conditions in specific areas of Iceland, check out the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Raufarhöfn with an average of 59 mm (2.3 in) to heavy rainfall in Jokulsarlon Glacial Lagoon with 209 mm (8.2 in).

Average sunshine

Sunshine is moderately available across various locations. In Reykjavík, you can expect around 154 hours of sunlight in August, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore Iceland by month

Best Places to Visit in Iceland in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Iceland.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Iceland

What is the weather like in August for some of the most popular destinations in Iceland?

Temperature range in Iceland (August)

Precipitation variation in Iceland (August)

Reykjavík

In August Reykjavík generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 9°C (48°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

July
August
September
Max temperature
16°C (61°F)
15°C (59°F)
12°C (54°F)
Min temperature
9°C (48°F)
9°C (48°F)
6°C (43°F)
Monthly sun hours
168 hours
154 hours
121 hours
Monthly rainfall
92 mm (3.6 in)
109 mm (4.3 in)
145 mm (5.7 in)
Monthly rainy days
17 days
18 days
18 days
Weather conditions

Akureyri

In August Akureyri generally has moderate temperatures with maximum daytime temperatures around 13°C (55°F), minimum nighttime temperatures around 6°C (43°F) and moderate monthly rainfall. So on average the conditions are unpleasant that month.

July
August
September
Max temperature
13°C (55°F)
13°C (55°F)
9°C (48°F)
Min temperature
7°C (45°F)
6°C (43°F)
3°C (37°F)
Monthly sun hours
154 hours
136 hours
85 hours
Monthly rainfall
86 mm (3.4 in)
96 mm (3.8 in)
123 mm (4.8 in)
Monthly rainy days
15 days
15 days
15 days
Weather conditions

Keflavík

In August Keflavík generally has moderate temperatures with maximum daytime temperatures around 13°C (55°F), minimum nighttime temperatures around 10°C (50°F) and high monthly rainfall. So on average the conditions are poor that month.

July
August
September
Max temperature
14°C (57°F)
13°C (55°F)
12°C (54°F)
Min temperature
10°C (50°F)
10°C (50°F)
8°C (46°F)
Monthly sun hours
168 hours
154 hours
121 hours
Monthly rainfall
83 mm (3.3 in)
106 mm (4.2 in)
149 mm (5.9 in)
Monthly rainy days
16 days
17 days
18 days
Weather conditions

Höfn

In August Höfn generally has moderate temperatures with maximum daytime temperatures around 12°C (54°F), minimum nighttime temperatures around 8°C (46°F) and high monthly rainfall. So on average the conditions are poor that month.

July
August
September
Max temperature
12°C (54°F)
12°C (54°F)
10°C (50°F)
Min temperature
8°C (46°F)
8°C (46°F)
6°C (43°F)
Monthly sun hours
141 hours
130 hours
114 hours
Monthly rainfall
119 mm (4.7 in)
152 mm (6 in)
227 mm (8.9 in)
Monthly rainy days
15 days
16 days
16 days
Weather conditions

Selfoss

In August Selfoss generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 9°C (48°F) and high monthly rainfall. So on average the conditions are unpleasant that month.

July
August
September
Max temperature
15°C (59°F)
15°C (59°F)
12°C (54°F)
Min temperature
10°C (50°F)
9°C (48°F)
7°C (45°F)
Monthly sun hours
168 hours
154 hours
121 hours
Monthly rainfall
99 mm (3.9 in)
124 mm (4.9 in)
177 mm (7 in)
Monthly rainy days
17 days
18 days
18 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Iceland.

In our records: Iceland August extremes

Notable August records observed across cities in Iceland in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest August day in Iceland reached 30°C (86°F) in Patreksfjörður on August 29, 2004.

Popular cities in August

Day & night temperatures, rainfall and average weather in Iceland in August.

City Weather Day temp Night temp Rainfall
Reykjavík 15°C (59°F) 9°C (48°F) 109 mm (4.3 in)
Akureyri 13°C (55°F) 6°C (43°F) 96 mm (3.8 in)
Keflavík 13°C (55°F) 10°C (50°F) 106 mm (4.2 in)
Vík í Mýrdal 12°C (54°F) 8°C (46°F) 185 mm (7.3 in)
Ísafjörður 11°C (52°F) 7°C (45°F) 85 mm (3.3 in)
Húsavík 13°C (55°F) 8°C (46°F) 89 mm (3.5 in)

Iceland weather in August: frequently asked questions

What is the weather like in Iceland in August?

August in Iceland brings unpleasant weather. In Reykjavík, daytime temperatures are typically around 15°C (59°F) and nighttime lows hover near 9°C (48°F).

What is the average temperature in Iceland in August?

In Reykjavík, the average daytime high in August is 15°C (59°F), while nighttime temperatures drop to around 9°C (48°F).

Does Iceland get a lot of rain in August?

Reykjavík typically receives notable rainfall in August, about 109 mm (4.3 in) on average across Iceland.

Is August a Good Time to Visit Iceland?

Given the typically unpleasant weather conditions in Reykjavík, August may not be the ideal time to visit Iceland.

Generally speaking, the best visiting conditions can be found in June and July offering mostly tolerable weather in Reykjavík. On the other hand, the months of January, February, March, April, September, October, November and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Iceland.

Weather and climate has detailed information for every country in the world. Are you going to Iceland? Get detailed historical weather averages for many cities in Iceland.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.