Iceland Reykjavik Weather in August — Climate Guide
August in Reykjavik is very-high
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.
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
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
Air Quality
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
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
Seasonal Weather Overview
Spring (Mar·Apr·May)
6.7°C
1.3°C
12/mo
Summer (Jun·Jul·Aug)
Current13.7°C
8°C
10.3/mo
Autumn (Sep·Oct·Nov)
7.3°C
2.7°C
13/mo
Winter (Dec·Jan·Feb)
2.3°C
-2.7°C
13/mo
Reykjavik Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| 2° | -3° | 13d·75mm | 1h | 80% | 0 | Moderate | Shoulder | |
| 3° | -2° | 12d·70mm | 2h | 79% | 1 | Moderate | Shoulder | |
| 4° | -1° | 13d·80mm | 4h | 78% | 1 | Moderate | Shoulder | |
| 6° | 1° | 12d·60mm | 5h | 75% | 2 | Moderate | Shoulder | |
| May (Best) | 10° | 4° | 11d·50mm | 6h | 73% | 3 | Busy | Peak |
| June (Best) | 13° | 7° | 10d·50mm | 7h | 73% | 4 | Very busy | Peak |
| July (Best) | 14° | 9° | 10d·50mm | 6h | 75% | 4 | Very busy | Peak |
| August (Best) | 14° | 8° | 11d·60mm | 5h | 78% | 3 | Very busy | Peak |
| September (Best) | 11° | 6° | 13d·70mm | 4h | 79% | 2 | Busy | Peak |
| 7° | 3° | 13d·75mm | 3h | 80% | 1 | Moderate | Shoulder | |
| 4° | -1° | 13d·80mm | 1h | 81% | 1 | Moderate | Shoulder | |
| December (Best) | 2° | -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
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.