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Weather in Iceland in July

Facts verified 2026-08-04Updated 2026-08-04Weather

The warmest month tops both temperature curves — charted in full — and holds the series’ closing fact: a record low of +1.4°C. July has never frozen.

Skógafoss waterfall seen from the clifftop in full July green — the white cascade plunging past moss-covered rock with a double rainbow standing in the spray and yellow wildflowers on the slope.
July doing its gentle work: Skógafoss from the clifftop, double rainbow in the spray, photographed 20 July. Photo by Jakub Hałun, CC BY 4.0, via Wikimedia Commons.
Short answer

July weather in Iceland: the warmest month tops both temperature curves — 14.9°C days, 9.1°C nights, charted in full below — over the second-driest total (49.9 mm). And the series’ closing fact: a record low of +1.4°C — July has never frozen in the capital’s books. Live reading below.

What is the weather in Iceland right now?

TownNowWindSky
Reykjavík8°C7 m/sOvercast
Vík8°C10 m/sOvercast
Borgarnes8°C9 m/sOvercast
Ísafjörður5°C8 m/sMostly clear

Live Open-Meteo readings for our reference towns, fetched at render. The full live board — roads, alerts, aurora, webcams — is Iceland Pulse.

July in Reykjavík — the whole table

MetricValueWhat it means
Mean daily high14.9°CThe table’s highest — July owns it
Mean daily low9.1°CThe warmest nights of the year
Record high25.7°CThe capital’s all-time heat record
Record low+1.4°CThe ONLY month that has never frozen
Precipitation49.9 mmSecond-driest, after June
Sunshine183.1 hThird place — May and June ahead

The record rows hold the month’s two trophies: 25.7°C, the hottest reading Reykjavík has ever logged, and +1.4°C, a record low that never reached zero — unique in the table. One asterisk for honesty: that is the capital’s station; highland ground frost happens year-round, which is why the warm layer stays packed even now. All twelve months: the weather-by-month table.

The temperature curve — all twelve months

MonthMean high (°C)Mean low (°C)
January3.2-1.7
February3.3-1.9
March4.2-1.3
April6.91.0
May10.14.0
June13.07.2
July14.99.1◀ the summit, both columns
August14.18.6
September11.46.2
October7.62.7
November4.7-0.1
December3.3-1.6

Every pair from the same IMO 1991–2020 normals table, read the same day. The shape is the Icelandic climate in one glance: a gentle ocean-flattened curve, February’s nights at the floor (−1.9), July at the top of both columns — and only about seventeen degrees separating the coldest normal night from the warmest normal day of the entire year.

How much daylight does July have?

DateSunriseSunsetDay length
07-0103:0423:5920 h 55 m
07-1003:2423:4220 h 18 m
07-2003:5323:1519 h 21 m
07-3104:2922:4018 h 11 m

Computed, not copied — sunrise and sunset for 2026 at Reykjavík’s own coordinates (64.15, -21.94), NOAA solar algorithm. The month opens one minute short of midnight (23:59) and honestly sheds two and three-quarter hours by the 31st — the year has turned, and that bright sky is why the aurora still takes the month off.

July or August — which has better weather?

The most-asked comparison, answered from the tables: July wins the weather row — warmer (14.9/9.1 against August’s 14.1/8.6), drier (49.9 mm against 64.5), sunnier (183.1 hours against 164.8) and longer-lit (opening at 20 h 55 m against 18 h 05 m). August wins the sky row: real darkness returns in its final week, bringing the first aurora chances of the season — the sibling page where this twelve-part series began.

For the month beyond its weather — the open highlands, Landmannalaugar, the Mývatn honesty — the July pillar carries it, and August takes the baton.

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July weather — questions people actually ask

What is the weather in Iceland in July?
The Icelandic maximum: the warmest normals in the table (9.1°C to 14.9°C), the second-driest total (49.9 mm over 10 wet days), 183.1 hours of sunshine, and days that open the month at nearly twenty-one hours. Storms sit at their annual minimum. It is not hot — it is reliably, workably mild, which in Iceland is the higher compliment. The one number moving the wrong way: daylight, already shedding toward autumn.
What is the temperature in Iceland in July?
Normals of 9.1°C to 14.9°C in Reykjavík — both the highest values in their columns, charted in full on this page — with records at 25.7°C (the capital's all-time heat record) and +1.4°C. Warm still days reach genuine t-shirt territory in the dry northern air; windy fronts pull afternoons back to jacket weather. The interior runs cooler and highland nights still get cold, but the coasts hold their floor.
Has it ever frozen in Iceland in July?
In Reykjavík's record books — never. July's all-time record low stands at +1.4°C, making it the only month of the twelve whose record has never crossed zero: June bottoms at −0.7°C, August at −0.4°C, and the other months descend from there to January's −24.5°C. One asterisk belongs on the claim: that is the capital's station — highland ground frost happens in every month of the Icelandic year.
Is July or August better weather in Iceland?
July, narrowly and measurably: warmer (14.9/9.1 vs 14.1/8.6), drier (49.9 vs 64.5 mm), sunnier (183.1 vs 164.8 hours), and longer-lit (opening at 20 h 55 m against August's 18 h 05 m). What August offers in exchange: real darkness returning at month's end — the first aurora chances of the season — and a slow easing of peak crowds after mid-month. Pick July for maximum summer, August for summer plus the first night sky.
Does it rain in Iceland in July?
Second-least of any month: 49.9 mm across about 10 wet days, just behind June's 43.3 at the bottom of the year's curve. Showers pass, clear quickly, and leave the famous green behind — the hero photo's moss and wildflowers are July's rain doing its gentle work. Carry the shell in the daypack, plan as if the day will cooperate, and it usually will.
What should I wear in Iceland in July?
Summer-Icelandic layers: t-shirt base, warm mid-layer for evenings and the wind, the shell that never leaves the daypack, and sunglasses that earn their keep in twenty-hour light. Hiking boots for trails, sandals only for pools. The July-specific note: sunscreen — long days accumulate real exposure through the cool air, and the burn surprises people who dressed for the temperature instead of the light.
Can you see the northern lights in Iceland in July?
No. The computed table opens the month with a 23:59 sunset, and even on the 31st the sun is only down for six twilight-bright hours — there is no darkness for an aurora to appear against, whatever the sun is doing. The season reopens when true night returns at the end of August, and September through March carries the honest odds. July's sky show is the midnight sun's long goodbye instead.

Photograph: Skógafoss from the clifftop in July (20 July) by Jakub Hałun, CC BY 4.0, via Wikimedia Commons. Climate normals 1991–2020 (including the record rows and all twelve temperature pairs): Icelandic Met Office, as published in the Reykjavík climate table, read 4 August 2026. Daylight computed at render (NOAA solar algorithm, Reykjavík coordinates; Iceland keeps UTC year-round). Live reading: Open-Meteo via our Pulse feed at render time, shown only when the feed answers.