Weather in Iceland - today, tomorrow and 14-day forecast

Right now temperatures across Iceland range from 10° to 11°. Below: today's conditions city by city, a live weather map, the 14-day outlook and month-by-month climate to help you pick the best time to travel.

Country values are the median of forecasts from 3 cities; the range shows local differences. Methodology.

Weather in Iceland's cities today

☁️Reykjavík 11°💧 1 mm ☁️Kopavogur 11°💧 0.9 mm 🌧️Akureyri 10°💧 3 mm

Next days in Iceland

today☁️ 11°💧 1 mm

Sun☁️ 12°💧 0.2 mm

Mon🌧️ 11°💧 1.9 mm

Tue☀️ 11°💧 2.7 mm

Wed☁️ 12°💧 6.5 mm

Thu🌧️ 10°💧 8.5 mm

Fri🌧️ 12°💧 0.5 mm

Sat🌧️ 10°💧 0.8 mm

Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Friday 11 Sept in Iceland, the forecast high is 12°C. Typical daytime temperatures at this time of year range from 9°C to 12°C, so it will be warmer than usual. It is warmer than 87% of similar days.

Saturday 5 Sept

11°Cnear normal

usually 10°C–12°C

night: near normal rain: less rain than usual wind: typical

Sunday 6 Sept

12°Cwarmer than usual

usually 10°C–12°C

warmer than 71% of similar days

night: warmer than usual rain: less rain than usual wind: typical

Monday 7 Sept

11°Cnear normal

usually 10°C–12°C

night: near normal rain: typical rainfall wind: stronger than usual

Tuesday 8 Sept

11°Cnear normal

usually 9°C–12°C

night: exceptionally warm rain: typical rainfall wind: lighter than usual

Wednesday 9 Sept

12°Cwarmer than usual

usually 9°C–12°C

warmer than 72% of similar days

night: exceptionally warm rain: more rain than usual wind: exceptionally strong

Thursday 10 Sept

10°Cnear normal

usually 9°C–12°C

night: exceptionally warm rain: more rain than usual wind: stronger than usual

Friday 11 Sept

12°Cwarmer than usual

usually 9°C–12°C

warmer than 87% of similar days

night: warmer than usual rain: less rain than usual wind: typical

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →

cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 10°C by day. The coolest year was 1982 (8°C) and the warmest was 2022 (14°C). The current forecast averages 11°C - higher than in 82% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

Weather warnings - Iceland

No active weather warnings for Iceland. The national weather service is not forecasting dangerous conditions.

14-day forecast - Iceland

Iceland - 14-day weather forecast infographic

Iceland 30 & 45-day weather - long-range outlook

Next 16 days · forecast

11°

around 9° at night · days with rain: 12

Weeks 3-4 · avg for September

11°

around 6° at night · rain chance 79%

Weeks 5-7 · avg for October

8°

around 3° at night · rain chance 72%

The 30 & 45-day outlook for Iceland: the next 16 days are a numerical forecast updated daily - on average 11° by day and 9° at night. Further out we rely on multi-year climate averages: around 11° in September, and about 8° in October. Forecasts beyond two weeks are indicative only.

Today vs the next days - Iceland cities

City	Today	+3 days	+7 days	Rain today
☁️ Reykjavík	11℃	11℃	10℃	1 mm
☁️ Kopavogur	11℃	11℃	10℃	0.9 mm
🌧️ Akureyri	10℃	12℃	12℃	3 mm

Day-by-day forecast for Iceland

Saturday5 September 2026

☁️11°overcast clouds

night 8° · evening 11° · rain 1 mm · humidity 62% · wind 5 m/s · clouds 94%

Sunday6 September 2026

☁️12°overcast clouds

night 9° · evening 11° · rain 0.24 mm · humidity 59% · wind 6 m/s · clouds 93%

Monday7 September 2026

🌧️11°light rain

night 7° · evening 10° · rain 1.9 mm · humidity 71% · wind 7 m/s · clouds 75%

Tuesday8 September 2026

☀️11°clear sky

night 10° · evening 12° · rain 2.7 mm · humidity 56% · wind 4 m/s · clouds 1%

Wednesday9 September 2026

☁️12°overcast clouds

night 10° · evening 12° · rain 6.48 mm · humidity 77% · wind 10 m/s · clouds 100%

Thursday10 September 2026

🌧️10°moderate rain

night 11° · evening 10° · rain 8.52 mm · humidity 78% · wind 8 m/s · clouds 100%

Friday11 September 2026

🌧️12°light rain

night 9° · evening 10° · rain 0.48 mm · humidity 86% · wind 5 m/s · clouds 100%

Saturday12 September 2026

🌧️10°light rain

night 10° · evening 10° · rain 0.78 mm · humidity 79% · wind 6 m/s · clouds 100%

Sunday13 September 2026

🌧️11°moderate rain

night 11° · evening 10° · rain 9.75 mm · humidity 73% · wind 11 m/s · clouds 99%

Monday14 September 2026

🌧️11°moderate rain

night 10° · evening 10° · rain 10.35 mm · humidity 80% · wind 6 m/s · clouds 100%

Tuesday15 September 2026

🌧️10°moderate rain

night 10° · evening 11° · rain 7.41 mm · humidity 86% · wind 6 m/s · clouds 100%

Wednesday16 September 2026

🌧️12°light rain

night 10° · evening 12° · rain 0.48 mm · humidity 68% · wind 7 m/s · clouds 99%

Thursday17 September 2026

☁️9°broken clouds

night 9° · evening 10° · rain 3.72 mm · humidity 65% · wind 5 m/s · clouds 63%

Friday18 September 2026

🌧️11°light rain

night 9° · evening 11° · rain 1.32 mm · humidity 72% · wind 8 m/s · clouds 100%

Saturday19 September 2026

☀️10°clear sky

night 8° · evening 9° · rain 7.29 mm · humidity 76% · wind 4 m/s · clouds 99%

Sunday20 September 2026

🌧️9°light rain

night 10° · evening 10° · rain 3.57 mm · humidity 84% · wind 8 m/s · clouds 99%

Sea temperature - Iceland

Beach	Water today	Water week avg	Waves	How's the water?
Reykjavík	11℃	11℃	-	very cold
Kopavogur	11℃	11℃	-	very cold

Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Air quality and smog in Iceland

City	PM2.5 (µg/m³)	PM10 (µg/m³)	Air quality
Reykjavík	1.5	4.9	very good

Based on PM2.5 thresholds. Station readings, updated daily (last reading: 2026-09-05, 01:00).

Iceland weather through the year

Iceland weather month by month - when is the best time to go?

January (3°)February (3°)March (4°)April (6°)May (9°)June (13°)July (14°)August (14°)September (11°)October (8°)November (4°)December (2°)

Weather in other countries in Europe

IrelandHungaryIsle of ManGreeceItalyGermany

Public holidays in Iceland - when are the long weekends?

Next long weekend in Iceland: Christmas Eve (24 December, Thursday) - Thursday–Sunday if you take Friday off (4 days).

2026

24 DecemberThursday

Christmas Eve

long weekend + bridge day

25 DecemberFriday

Christmas Day

long weekend

26 DecemberSaturday

St. Stephen's Day

falls on a weekend

31 DecemberThursday

New Year's Eve

long weekend + bridge day

2027

1 JanuaryFriday

New Year's Day

long weekend

25 MarchThursday

Maundy Thursday

long weekend + bridge day

26 MarchFriday

Good Friday

long weekend

28 MarchSunday

Easter Sunday

falls on a weekend

29 MarchMonday

Easter Monday

long weekend

22 AprilThursday

First Day of Summer

long weekend + bridge day

1 MaySaturday

May Day

falls on a weekend

6 MayThursday

Ascension Day

long weekend + bridge day

Public holidays (statutory days off) - shops, offices and some attractions may be closed. A "bridge day" is a workday between a holiday and the weekend worth taking as leave. Lunar holiday dates marked as tentative may shift by one day after the official announcement.

Calendar sources

Nager.Date public holiday database

FAQ - Iceland weather

What is the weather like in Iceland today?

Today it is about 11° during the day and 8° at night, overcast clouds.

How far ahead can I check the forecast for Iceland?

This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.