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Reykjavik Weather in August — Climate Guide

August in Reykjavik is very-high

Avg High
14°C
Avg Low
8°C
Rainy Days
11
Sunshine
5h

August is very-high for Reykjavik.

Last peak month. Aurora returns mid-month (Aug 15 onwards). Menningarnótt is Reykjavik's biggest single-day cultural event — all museums + galleries + private homes open free, ending in harbor fireworks at midnight.

Crowds: Very busy Prices: Peak Sea temp: 11°C
9 /10

Travel score

Aurora returns + Menningarnótt Reykjavik's biggest cultural night

August Weather at a Glance

August averages 57°F / 14°C highs and 46°F / 8°C lows with 11 rainy days and 60mm. Sunshine 5 hours. Daylight 17h 25min — visibly dropping vs July. Sea 11°C (Iceland's warmest). Aurora returns mid-month as nights darken — the best month for combining summer activities + early Aurora attempts. Menningarnótt Saturday is the cultural highlight of the year.

August Travel Advice

Time visit around Menningarnótt (last Saturday of August) — city-wide free events 14:00-24:00 ending in harbor fireworks. Mid-August onwards: Aurora possible after 23:00. Pre-book Late summer Ring Road 1-2 months ahead. Reykjavik Marathon (Menningarnótt morning) registration via marathon.is.

Flying In from Overseas

European school holiday tail + Korean summer break peak + US summer travelers. Direct flights still elevated: NYC-KEF $500-850, London $350-600, Frankfurt $450-700. Korean summer break mid-Aug pushes Asia bookings to $1,700-2,500 via Helsinki/Frankfurt.

August Pricing Trends

Peak-tier pricing through Menningarnótt week: Reykjavik 4-star $450-750/night, Hotel Borg $750-1,300, ION Adventure $750-1,400, Retreat at Blue Lagoon $2,300-3,800. Blue Lagoon $103-180. 4x4 rental $150-220/day. Last expensive month before fall.

Reykjavik August Weather Stats

Avg High

14°C

-10°
40°
Temperature range

Avg Low

8°C

Rainy Days

11

60mm total

Sunshine

5h

Daily avg

Humidity

78%

moderate

UV Index

3

Moderate

Wind

15 km/h

Gusts 42

Sea Temp

11°C

no swimming (warmest but still cold)

Crowds

Very busy

At attractions

August Sunrise & Sunset

Sunrise
04:45
Day length
17h 25min
Sunset
22:10
00:0006:0012:0018:0024:00

Air Quality

28
AQI
Good
GoodModeratePoorVery poor

PM2.5

10 μg/m³

PM10

18 μg/m³

Status

good

Feels-Like Temperature & Wind

Feels like

Daytime

12°C

/

Nighttime

6°C

Humidity and wind affect how the actual temperature feels.

Wind

15 km/h

Max gust 42 km/h

Activities Recommended for August

Menningarnótt Culture Night Late Midnight Sun + early Aurora Ring Road full circuit Golden Circle + South Coast Snæfellsnes Peninsula Whale watching Reykjavik Marathon

August Travel Pros & Cons

Pros

  • 14/8°C still warm
  • Aurora returns mid-August
  • Menningarnótt cultural festival peak
  • Whale watching warmest sea temps
  • Crowds easing late month

Cons

  • Hotel rates near July peak
  • Flights still elevated
  • Rain 11 days/month
  • Highland F-roads still busy

August Events & Festivals

  • Menningarnótt / Culture Night (late August Saturday — Reykjavik's biggest cultural celebration with city-wide free events ending in harbor fireworks)
  • Reykjavik Marathon (Menningarnótt morning)
  • Þjóðhátíð Festival continues into early August

Reykjavik in August — Full Picture

Last peak month. Aurora returns mid-month (Aug 15 onwards). Menningarnótt is Reykjavik's biggest single-day cultural event — all museums + galleries + private homes open free, ending in harbor fireworks at midnight.

What to Wear & What to Pack

Like July — waterproof shell mandatory, mid-fleece for evenings, sneakers or hiking boots. Sunglasses + sleep mask still needed first half. Layered approach for 14°C day → 8°C night swings.

Packing Checklist

Tee + waterproof shell
Knit + fleece
Sneakers + hiking boots
Sleep mask (first half)
Sunglasses

Seasonal Weather Overview

Spring (Mar·Apr·May)

Avg High

6.7°C

Avg Low

1.3°C

Rainy days

12/mo

Moderate Shoulder

Summer (Jun·Jul·Aug)

Current
Avg High

13.7°C

Avg Low

8°C

Rainy days

10.3/mo

Very busy Peak

Autumn (Sep·Oct·Nov)

Avg High

7.3°C

Avg Low

2.7°C

Rainy days

13/mo

Moderate Shoulder

Winter (Dec·Jan·Feb)

Avg High

2.3°C

Avg Low

-2.7°C

Rainy days

13/mo

Busy Shoulder

Reykjavik Monthly Weather Comparison

Month High Low Rain Sun Humid UV Crowd Price
-3° 13d·75mm 1h 80% 0 Moderate Shoulder
-2° 12d·70mm 2h 79% 1 Moderate Shoulder
-1° 13d·80mm 4h 78% 1 Moderate Shoulder
12d·60mm 5h 75% 2 Moderate Shoulder
May (Best)
10° 11d·50mm 6h 73% 3 Busy Peak
June (Best)
13° 10d·50mm 7h 73% 4 Very busy Peak
July (Best)
14° 10d·50mm 6h 75% 4 Very busy Peak
August (Best)
14° 11d·60mm 5h 78% 3 Very busy Peak
11° 13d·70mm 4h 79% 2 Busy Peak
13d·75mm 3h 80% 1 Moderate Shoulder
-1° 13d·80mm 1h 81% 1 Moderate Shoulder
December (Best)
-3° 14d·80mm 0h 82% 0 Very busy Peak

View Other Months

Reykjavik August Hotel Picks

Frequently Asked Questions

Is August a good time to visit Reykjavik?

Reykjavik in August is very-high. Tourist crowds are very busy and flight/hotel prices are peak.

What's the average temperature in Reykjavik in August?

Reykjavik August averages a high of 14°C and a low of 8°C.

Does it rain much in Reykjavik in August?

Reykjavik August averages 60mm of rainfall over about 11 rainy days.

What should I wear in Reykjavik in August?

Like July — waterproof shell mandatory, mid-fleece for evenings, sneakers or hiking boots. Sunglasses + sleep mask still needed first half. Layered approach for 14°C day → 8°C night swings.

What time are sunrise and sunset in Reykjavik in August?

Reykjavik August sunrise is 04:45 and sunset is 22:10, with 17h 25min of daylight.

What's the air quality like in Reykjavik in August?

Reykjavik August air quality (AQI) averages 28, rated Good. PM2.5 averages 10μg/m³.

What activities are recommended in Reykjavik in August?

In August, Reykjavik is great for Menningarnótt Culture Night, Late Midnight Sun + early Aurora, Ring Road full circuit.

Is August peak season in Reykjavik?

Reykjavik August crowds are very busy and prices are peak. Advance reservations are strongly recommended.

Best Months to Visit Reykjavik

View Other Months

Why you can trust weather guide

Jimmy Kong TripPick founder · Travel content creator

Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.

8+ years analyzing travel data 30+ countries visited Live exchange rate verified
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