Keflavík, Iceland — Weather in July 2026

Climate Overview

Keflavík, Iceland in July has mild conditions, with highs averaging 12.5°C (55°F) and noticeably cooler mornings. Rain falls on about 13 days this month. Sea temperature stays cool at 11.8°C (53°F).

This month falls at the middle of Summer.

Temperatures remain fairly steady throughout July, with daily highs around 13°C (55°F).

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

Expect around 12.6h of sunshine at the start of July, decreasing to 10.6h by the end.

The warmest days tend to fall around the 29th, averaging 13.7°C (57°F).

Compared to June, this month is about 2°C warmer with 1 fewer rainy days.

Monthly July Averages

Temperature

13°C / 10°C

Feels Like

10°C / 6°C

Rain

13 days · 71 mm

Sunshine

10.6h / day

Humidity

84% — Very Humid

Wind

24 km/h

Wind Direction

NW (308°)

Gusts

37 km/h

Daylight

19.5 h

Cloud Cover

78%

Clear Sky Days

UV Index

4.1 — Moderate

Sea Temperature

12°C

Dew Point

8°C — Dry

Moon Phase

New Moon · 0%

Climate Charts

Daily averages based on historical data (2016–2025)

Daily Temperature

HighLow

Daily Precipitation

Rainfall

Daily Sunshine

Sunshine

Daily Wind Speed

Wind Speed

Sun Position

Sunrise 03:47

Daylight 19.7h

Sunset 23:28

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 July have stayed close to the long-run average.

Compare Months

Month	Temp	Feels Like	Rain	Sun	Humidity	UV	Status	Details
January	3°C / 0°C	-3°C / -7°C	19days (124 mm) Wet	1.4h Poor	77% Humid	0.2 Low	Wet	View Details
February	3°C / 0°C	-3°C / -6°C	18days (122 mm) Wet	3.5h Poor	78% Humid	0.8 Low	Wet	View Details
March	4°C / 1°C	-2°C / -6°C	17days (115 mm) Wet	6.7h Fair	76% Humid	1.8 Low	Poor	View Details
April	6°C / 3°C	2°C / -3°C	15days (102 mm) Wet	8.8h Good	78% Humid	3.1 Moderate	Poor	View Details
May	9°C / 5°C	5°C / 0°C	16days (101 mm) Wet	11h Excellent	78% Humid	4 Moderate	Poor	View Details
June best	11°C / 8°C	7°C / 4°C	14days (76 mm) Wet	10.9h Excellent	81% Humid	4.2 Moderate	Fair	View Details
July best	13°C / 10°C	10°C / 6°C	13days (71 mm) Wet	10.6h Excellent	84% Humid	4.1 Moderate	Fair	View Details
August best	12°C / 10°C	10°C / 6°C	13days (87 mm) Wet	9.5h Good	83% Humid	3.3 Moderate	Fair	View Details
September	10°C / 7°C	6°C / 3°C	18days (135 mm) Wet	7.2h Good	81% Humid	2.2 Moderate	Wet	View Details
October	7°C / 5°C	3°C / -1°C	18days (134 mm) Wet	4.5h Fair	81% Humid	1 Low	Wet	View Details
November	5°C / 2°C	0°C / -4°C	16days (111 mm) Wet	1.9h Poor	79% Humid	0.4 Low	Poor	View Details
December	3°C / 0°C	-2°C / -6°C	17days (112 mm) Wet	1.1h Poor	78% 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 jacketComfortable walking shoes

Frequently Asked Questions

Expand all

Is July a good time to visit Keflavík?

July is typically fair for visiting Keflavík, with average highs of 13°C (55°F) and around 13 rainy days. Keflavík, Iceland in July has mild conditions, with highs averaging 12.5°C (55°F) and noticeably cooler mornings. Rain f

Does it rain a lot in Keflavík in July?

Keflavík typically sees around 13 rainy days in July with 71 mm (2.8 in) of total rainfall. Pack a waterproof jacket.

Does it get cold at night in Keflavík in July?

Nights in Keflavík during July are cool at around 10°C (49°F). Bring a jacket or sweater for evenings.

What should I pack for Keflavík in July?

With highs of 13°C (55°F) and lows of 10°C (49°F) in July, we recommend: Layered clothing, Light jacket, Umbrella, Waterproof jacket, Comfortable walking shoes. Comfortable walking shoes are essential.

Is July among the best months weather-wise in Keflavík?

Yes, July offers some of the best weather conditions in Keflavík with comfortable temperatures and lower chances of rain.

What is the UV index in Keflavík in July?

The average UV index in Keflavík during July is 4 (moderate). Sunscreen and sunglasses are recommended during midday hours.

How many hours of daylight are there in Keflavík in July?

Keflavík gets approximately 20 hours of daylight per day in July, with around 11 hours of sunshine.

Does it snow in Keflavík in July?

Snow is uncommon in Keflavík during July based on 10-year climate averages.

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