Garðabær, Iceland — Weather in June 2026

Monthly climate averages for Garðabær, Iceland. Based on 10-year ERA5 reanalysis data.

Cfc Subpolar Oceanic
4.9 /10
Fair

June is a fair month in Garðabær

Climate Overview

Garðabær, Iceland in June has mild conditions, with highs averaging 12.4°C (54°F) and noticeably cooler mornings. Rain falls on about 15 days this month, totalling around 86 mm. Sea temperature stays cool at 9.8°C (50°F).

This month falls at the beginning of Summer.

Daily highs in June gradually rise from around 11°C (52°F) at the start to 13°C (56°F) by month's end.

Rainfall is heaviest during the last third of the month, while the first third tends to be drier.

Expect around 12.4h of sunshine at the start of June, decreasing to 10.2h by the end.

The warmest days tend to fall around the 29th, averaging 13.5°C (56°F).

Compared to May, this month is about 3°C warmer with 3 fewer rainy days. Temperatures will rise further into July.

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Monthly June Averages

Temperature
12°C / 7°C
Feels Like
10°C / 4°C
Rain
15 days · 86 mm
Sunshine
10.8h / day
Humidity
79% — Humid
Wind
19 km/h
Wind Direction
SW (227°)
Gusts
43 km/h
Daylight
20.8 h
Cloud Cover
81%
Clear Sky Days
0.6
UV Index
4.1 — Moderate
Sea Temperature
10°C
Dew Point
6°C — Dry
Moon Phase
New Moon · 0%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

20°C 17°C 14°C 11°C 8°C 5°C 2°C 151015202530
HighLow

Daily Precipitation

0 mm 2 mm 4 mm 6 mm 8 mm 151015202530
Rainfall

Daily Sunshine

0h 4h 8h 12h 16h 151015202530
Sunshine

Daily Wind Speed

0 6 12 18 24 30 151015202530
Wind Speed
Sun Position
Sunrise 03:00
Daylight 21h
Sunset 23:59

What to Expect

Keep afternoons flexible as tropical showers are common — they typically clear within an hour.

Wet weather can spread across much of the day, so it is best to keep outdoor plans flexible.

Recent yearly records for June have stayed close to the long-run average.

Compare Months

January
Wet
Temp
1°C / -4°C
Feels Like
-4°C / -10°C
Rain
18days (127 mm) Wet
Sun
1.4h Poor
Humidity
82% Humid
UV
0.2 Low
Snow Days
17days
View Details
February
Wet
Temp
2°C / -3°C
Feels Like
-3°C / -8°C
Rain
18days (131 mm) Wet
Sun
3.5h Poor
Humidity
83% Humid
UV
0.8 Low
Snow Days
16days
View Details
March
Wet
Temp
3°C / -2°C
Feels Like
-1°C / -7°C
Rain
18days (118 mm) Wet
Sun
6.6h Fair
Humidity
79% Humid
UV
1.8 Low
Snow Days
15days
View Details
April
Poor
Temp
7°C / 1°C
Feels Like
3°C / -3°C
Rain
15days (109 mm) Wet
Sun
8.7h Good
Humidity
79% Humid
UV
3.2 Moderate
Snow Days
7days
View Details
May
Wet
Temp
10°C / 4°C
Feels Like
7°C / 0°C
Rain
18days (109 mm) Wet
Sun
10.9h Excellent
Humidity
78% Humid
UV
3.9 Moderate
Snow Days
3days
View Details
June best
Fair
Temp
12°C / 7°C
Feels Like
10°C / 4°C
Rain
15days (86 mm) Wet
Sun
10.8h Excellent
Humidity
79% Humid
UV
4.1 Moderate
View Details
July best
Fair
Temp
15°C / 9°C
Feels Like
13°C / 7°C
Rain
14days (73 mm) Wet
Sun
10.5h Excellent
Humidity
81% Humid
UV
3.9 Moderate
View Details
August best
Fair
Temp
14°C / 9°C
Feels Like
12°C / 6°C
Rain
14days (90 mm) Wet
Sun
9.5h Good
Humidity
82% Humid
UV
3.2 Moderate
View Details
September
Wet
Temp
11°C / 6°C
Feels Like
8°C / 2°C
Rain
18days (133 mm) Wet
Sun
7.2h Good
Humidity
85% Humid
UV
2.2 Moderate
View Details
October
Poor
Temp
7°C / 3°C
Feels Like
3°C / -2°C
Rain
17days (127 mm) Wet
Sun
4.5h Fair
Humidity
86% Very Muggy
UV
1 Low
Snow Days
4days
View Details
November
Poor
Temp
3°C / -1°C
Feels Like
-1°C / -5°C
Rain
14days (102 mm) Wet
Sun
1.9h Poor
Humidity
85% Humid
UV
0.4 Low
Snow Days
8days
View Details
December
Poor
Temp
1°C / -3°C
Feels Like
-4°C / -8°C
Rain
16days (110 mm) Wet
Sun
1.1h Poor
Humidity
83% Humid
UV
0.1 Low
Snow Days
13days
View Details
Month Temp Feels Like Rain Sun Humidity UV Status
January 1°C / -4°C -4°C / -10°C 18days (127 mm) Wet 1.4h Poor 82% Humid 0.2 Low Wet View Details
February 2°C / -3°C -3°C / -8°C 18days (131 mm) Wet 3.5h Poor 83% Humid 0.8 Low Wet View Details
March 3°C / -2°C -1°C / -7°C 18days (118 mm) Wet 6.6h Fair 79% Humid 1.8 Low Wet View Details
April 7°C / 1°C 3°C / -3°C 15days (109 mm) Wet 8.7h Good 79% Humid 3.2 Moderate Poor View Details
May 10°C / 4°C 7°C / 0°C 18days (109 mm) Wet 10.9h Excellent 78% Humid 3.9 Moderate Wet View Details
June best 12°C / 7°C 10°C / 4°C 15days (86 mm) Wet 10.8h Excellent 79% Humid 4.1 Moderate Fair View Details
July best 15°C / 9°C 13°C / 7°C 14days (73 mm) Wet 10.5h Excellent 81% Humid 3.9 Moderate Fair View Details
August best 14°C / 9°C 12°C / 6°C 14days (90 mm) Wet 9.5h Good 82% Humid 3.2 Moderate Fair View Details
September 11°C / 6°C 8°C / 2°C 18days (133 mm) Wet 7.2h Good 85% Humid 2.2 Moderate Wet View Details
October 7°C / 3°C 3°C / -2°C 17days (127 mm) Wet 4.5h Fair 86% Very Muggy 1 Low Poor View Details
November 3°C / -1°C -1°C / -5°C 14days (102 mm) Wet 1.9h Poor 85% Humid 0.4 Low Poor View Details
December 1°C / -3°C -4°C / -8°C 16days (110 mm) Wet 1.1h Poor 83% Humid 0.1 Low Poor View Details

What to Wear

Bundle up with a warm coat, scarf, and closed-toe shoes. Thermal layers underneath give flexibility between indoors and outdoors.

A waterproof jacket or compact umbrella is recommended for occasional showers.

Packing List

Layered clothingLight jacketUmbrellaWaterproof jacketWaterproof shoes

Frequently Asked Questions

June is typically fair for visiting Garðabær, with average highs of 12°C (54°F) and around 15 rainy days. Garðabær, Iceland in June has mild conditions, with highs averaging 12.4°C (54°F) and noticeably cooler mornings. Rain f
Garðabær typically sees around 15 rainy days in June with 86 mm (3.4 in) of total rainfall. Pack a waterproof jacket.
Nights in Garðabær during June are cool at around 7°C (44°F). Bring a jacket or sweater for evenings.
With highs of 12°C (54°F) and lows of 7°C (44°F) in June, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Waterproof shoes. Comfortable walking shoes are essential.
Yes, June offers some of the best weather conditions in Garðabær with comfortable temperatures and lower chances of rain.
The average UV index in Garðabær during June is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.
Garðabær gets approximately 21 hours of daylight per day in June, with around 11 hours of sunshine.
Snow is uncommon in Garðabær during June based on 10-year climate averages.

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