August weather forecast
Iceland

August in Iceland signals the gradual transition from summer to autumn. Average temperatures in August range from 10°C (50°F) to 15°C (59°F), slightly lower than in July, indicating the onset of cooler weather. However, the southern and western coastal areas, such as Reykjavik, still experience slightly milder conditions due to the ocean's warming influence.

In August, daylight hours begin to decrease, though the change is gradual. The country still enjoys long daylight hours, with the sun rising around 5 am and setting close to 10 pm at the beginning of the month. By the end of August, daylight hours have reduced to 14, marking the end of the Midnight Sun phenomenon and the approach of darker nights.

Precipitation in August averages between 60mm (2.36") to 70mm (2.76"), slightly higher than the summer's drier months, and it usually falls as rain. Snow is a rare occurrence in August and is generally limited to the highest mountain peaks. With the cooler temperatures and increased rainfall, August can bring more cloud cover and occasional fog, especially in the coastal regions.

Wind conditions in August are similar to those in July, with average speeds around 12km/h (7.5mph). The effect of the wind chill is more noticeable towards the end of the month as temperatures begin to drop, making the air feel cooler than the actual temperature, particularly in exposed areas and during windy conditions.

August is a popular time to visit Iceland, thanks to the lingering mild weather and long daylight hours. It's an excellent month for outdoor activities, including hiking and sightseeing. As the month progresses and nights begin to darken, the chances of viewing the Northern Lights start to increase, particularly in the northern regions of the country. The blend of summer's end and autumn's onset makes August a unique and rewarding time to experience Iceland's stunning landscapes and natural beauty.

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• Reykjavík - August »
  As Reykjavík, Iceland sails into August, the summer heat slightly drops to an average high of 12.8°C (55°F) while the sea temperature remains at a warm 11.3°C (52.3°F). On the last day of August, in Reykjavík, Iceland, sunrise is at 06:08 and sunset at 20:45 GMT.
• Kópavogur - August »
  August in Kópavogur maintains the warm and luminous summer weather, highlighted by an inviting sea temperature of 11.3°C (52.3°F). On the first day of August in Kópavogur, sunrise is at 04:37 and sunset at 22:30.
• Akureyri - August »
  The month with the warmest seawater in Akureyri is August, with an average sea temperature of 9.5°C (49.1°F). August is the month with the warmest seawater in Akureyri, with an average sea temperature of 9.5°C (49.1°F).
• Akranes - August »
  July and August, with an average sea temperature of 11.3°C (52.3°F), are months with the warmest seawater in Akranes. Despite the impending colder months, August weather remains pleasantly warm and is a fantastic time to visit Akranes, Iceland.
• Selfoss - August »
  On the last day of August, in Selfoss sunrise is at 06:06 and sunset at 20:42 GMT. In Selfoss in August, during 17.1 rainfall days, 77mm (3.03") of precipitation is typically accumulated.
• Ísafjörður - August »
  The advent of August in Ísafjörður reveals an average high-temperature of a still cool 11.9°C (53.4°F), showing minimal difference from the prior month. Ísafjörður, during August nights, experiences a subtle shift to a low average of 6.9°C (44.4°F) from the day's heat. On the last day of August, in Ísafjörður sunrise is at 06:06 and sunset at 20:58 GMT.
• Vestmannaeyjar - August »
  In Vestmannaeyjar during August, the rain falls for 14.4 days and regularly aggregates up to 140mm (5.51") of precipitation. Vestmannaeyjar, Iceland, experiences temperate weather throughout August as well, with sea temperatures at a comfortable 11.7°C (53.1°F).
• Grindavik - August »
  July and August are identified as the warmest months in Grindavik, Iceland, with an average high-temperature of 12.2°C (54°F). On the first day of August in Grindavik sunrise is at 04:41 and sunset at 22:30.
• Seltjarnarnes - August »
  July and August, with an average sea temperature of 11.3°C (52.3°F), are months with the warmest seawater in Seltjarnarnes. On the first day of August in Seltjarnarnes, sunrise is at 04:37 and sunset at 22:31.
• Borgarnes - August »
  August is the month with the warmest seawater in Borgarnes with an average sea temperature of 10.8°C (51.4°F). In Borgarnes, Iceland, during August, the rain falls for 14.8 days and regularly aggregates up to 37mm (1.46") of precipitation.