Spring (March–May): Average 33–44°F, cold and humid climate, windy, relatively high rainfall. Common activities: Admire the North Atlantic views, coastal walks, visit the geothermal landscapes of the Reykjanes Peninsula. Recommended clothing: Waterproof jacket, warm clothing, waterproof trousers, thick socks.
Summer (June–August): Average 48–51°F, cool climate, relatively low rainfall. Common activities: Hiking, birdwatching, whale watching, exploring volcanic landscapes. Recommended clothing: Light and breathable clothing, windproof jacket, comfortable shoes.
Autumn (September–November): Average 46–38°F, humid, cold and windy climate, increasing rainfall, October is the rainiest month. Common activities: Visit museums, soak in hot springs, experience local culture. Recommended clothing: Waterproof jacket, warm clothing, waterproof trousers, comfortable shoes.
Winter (December–February): Average -33–32°F, cold climate, windy, moderate rainfall, possible ice and snow. Common activities: Northern Lights viewing (if conditions permit), visit indoor attractions. Recommended clothing: Warm jacket, hat, scarf, gloves, waterproof trousers, warm waterproof boots.
Southern Peninsula climatological average
Annual average temperature: approx. 40.8°F / Annual rainfall: approx. 1050 mm / Summer humidity: 70%–80% / Rainiest month: October
Southern Peninsula monthly average temperature and precipitation
Month
Air temperature (°F)
Precipitation (mm)
January
32.4°F
102
February
32.7°F
92.7
March
33.8°F
97.3
April
40.1°F
76.3
May
44.6°F
101
June
48.2°F
67
July
51.4°F
64
August
51.1°F
73.7
September
46.9°F
99.7
October
40.6°F
119.3
November
38.3°F
85.3
December
30.2°F
72.3
Southern Peninsula weather for the next seven days
10/22
Wednesday
Sunny
38°F/36.6°F
10/23
Thursday
Sunny
38.6°F/36.8°F
10/24
Friday
Patchy rain nearby
46.1°F/38.9°F
10/25
Saturday
Moderate rain
41.5°F/37.9°F
10/26
Sunday
Moderate rain
47.6°F/41.6°F
10/27
Monday
Patchy rain nearby
41.5°F/40.2°F
10/28
Tuesday
Partly Cloudy
38.7°F/38°F
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