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Uummannaq weather & best time to visit

Nature escape

Uummannaq at a glance

Best time
Jul
Warmest month
Jul · 13°
Warmest sea
Aug · 5.0°
Sunshine a year
2,260 h
Rain a year
374 mm
Climate
Subarctic
Time zone
UTC−2 / UTC−1
Elevation
15 m

Climate in Uummannaq

Uummannaq has a subarctic climate: summers are short and cool, winters long and cold. July is the warmest month with average highs of 13 °C, while February is the coolest at −11 °C. With around 2,260 hours of sunshine a year, Uummannaq is sunny; June is the sunniest month with 14.0 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Uummannaq

The best time to visit Uummannaq is in July. The sea stays too cool for a classic beach holiday: even in August it only reaches 5.0 °C. The wettest month is August with 57 mm of precipitation.

Uummannaq through the seasons

How the weather changes over the seasons, with averages for each.

Uummannaq in spring

Mar – May

43

Fair

  • −10–3 °C by day
  • Sea −1 °C
  • 9.3 h of sun a day
  • 18 rainy days in all

Uummannaq in summer

Jun – Aug

60

Good

  • 10–13 °C by day
  • Sea 4 °C
  • 11.9 h of sun a day
  • 24 rainy days in all

Uummannaq in autumn

Sep – Nov

26

Poor

  • −4–6 °C by day
  • Sea 2 °C
  • 2.8 h of sun a day
  • 22 rainy days in all

Uummannaq in winter

Dec – Feb

28

Poor

  • −10–−6 °C by day
  • Sea −1 °C
  • 0.7 h of sun a day
  • 14 rainy days in all

Which month for what?

Beach & swimming

No month

Sea from 21 °C, warm and mostly dry

Sightseeing & hiking

No month

15–28 °C and not too much rain

Snow

Sep – May

Snow on 2 or more days

Find your perfect month

Tell us what you like and we rate every month in Uummannaq for you.

Swimming in the sea
Sunshine
Little rain

Your best months: April – May, July

Based on the climate averages; tap a month to see its details.

Your holiday weather, at a glance

Weather in October

Weather in October

23

Holiday weather in October

Poor

Best time to visit: July

Keep in mindSnow

A typical day in October

  1. Morning, 08:00: about −4°
  2. Midday, 13:00: about −1°
  3. Afternoon, 16:00: about 0°
  4. Evening, 20:00: about −1°
  5. Night, 23:00: about −2°

09:4018:48

Cold evenings: bring a warm jacket.

Estimated from the average high and low: coolest around sunrise, warmest in mid-afternoon.

Light for photos in October

Golden hour
Morning 09:00–11:22 · evening 17:06–19:28
Blue hour
Morning 08:35–09:00 · evening 19:28–19:53

Golden hour: the sun between 4° below and 6° above the horizon; blue hour: 6° to 4° below it. Times for the 15th of the month; mountains and clouds shift the light.

October in Uummannaq compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 3° at the start of the month to −2° at the end. The sea cools from 2° to 1°. The days get 5.0 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high3°−2°
Night-time low−2°−6°
Sea2°1°
Daylight11.2 h6.2 h

What is the weather like in Uummannaq in October?

In October, Uummannaq is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−4 °C). The sea averages 1.1 °C – swimming is only for the hardy. The sun is scarce, with only about 2.3 hours a day. Precipitation falls on about 7 days, totalling 37 mm; on about 6 of them it snows. All in all, October is not an ideal month for a holiday in Uummannaq.

More details for October

Daylight
9 h 8 min09:40 – 18:48
UV index
0 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
5 km/haverage daily peakAll months
Cloud cover
70 %on averageAll months
Hot days
0 days30 °C or more
Snow days
6 days1 cm or more of fresh snowAll months
Time zone
UTC−1offset from UTC

How the score comes together

  • Temperatureweight 50 %0 %
  • Sunshineweight 20 %0 %
  • Few rainy daysweight 30 %78 %

Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.

What to pack in October

  • Warm jacket
  • Hat, scarf & gloves

Compare two months in Uummannaq

Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.

vs

July has the better holiday weather in Uummannaq: score 70 against 23. In July, days are 13 °C warmer than in October. The sea is 3 °C warmer in July. July has one more rainy day. The sun shines 10 hours longer a day in July.

October vs July, Uummannaq
MonthOctoberJuly
Holiday weather score2370better
Daytime high0°13°
Night-time low−4°7°
Sea1.1°4.5°
Sunshine2.3 h12.6 hbetter
Rainy days7better8
Rainfall37 mm46 mm

Based on the climate averages 1996–2025.

Uummannaq month by month

The typical weather for every month at a glance.

27January−8° · Sea −1° · 0.0 h

In January, Uummannaq is bitterly cold: daytime highs average −8 °C, and nights often drop below freezing (−14 °C). The sea averages −0.6 °C – swimming is only for the hardy. The sun stays below the horizon all day (polar night). Precipitation falls on about 5 days, totalling 21 mm; on about 5 of them it snows. All in all, January is not an ideal month for a holiday in Uummannaq.

Uummannaq in January
30February−10° · Sea −1° · 2.1 h

In February, Uummannaq is bitterly cold: daytime highs average −11 °C, and nights often drop below freezing (−17 °C). The sea averages −1.1 °C – swimming is only for the hardy. The sun is scarce, with only about 2.1 hours a day. Precipitation falls on about 3 days, totalling 12 mm; on about 3 of them it snows. All in all, February is not an ideal month for a holiday in Uummannaq.

Uummannaq in February
39March−10° · Sea −1° · 6.1 h

In March, Uummannaq is bitterly cold: daytime highs average −10 °C, and nights often drop below freezing (−17 °C). The sea averages −1.3 °C – swimming is only for the hardy. Expect around 6.1 hours of sunshine a day. Precipitation falls on about 5 days, totalling 17 mm; on about 4 of them it snows. All in all, March is not an ideal month for a holiday in Uummannaq.

Uummannaq in March
46April−4° · Sea −1° · 9.4 h

In April, Uummannaq is bitterly cold: daytime highs average −4 °C, and nights often drop below freezing (−12 °C). The sea averages −1.2 °C – swimming is only for the hardy. With around 9.4 hours of sunshine a day, there is plenty of sun. Precipitation falls on about 6 days, totalling 24 mm; on about 6 of them it snows. All in all, April is a so-so month for a holiday in Uummannaq.

Uummannaq in April
44May3° · Sea −1° · 12.5 h

In May, Uummannaq is cold: daytime highs average 3 °C, and nights often drop below freezing (−3 °C). The sea averages −0.8 °C – swimming is only for the hardy. With around 12.5 hours of sunshine a day, there is plenty of sun. Precipitation falls on about 7 days, totalling 29 mm; on about 5 of them it snows. All in all, May is a so-so month for a holiday in Uummannaq.

Uummannaq in May
52June10° · Sea 2° · 14.0 h

In June, Uummannaq is cold: daytime highs average 10 °C, and nights cool down to about 4 °C. The sea averages 1.8 °C – swimming is only for the hardy. With around 14.0 hours of sunshine a day, there is plenty of sun. Rain falls on about 7 days, adding up to 36 mm. All in all, June is a so-so month for a holiday in Uummannaq.

Uummannaq in June
70July13° · Sea 5° · 12.6 h

In July, Uummannaq is cool: daytime highs average 13 °C, and nights cool down to about 7 °C. The sea averages 4.5 °C – swimming is only for the hardy. With around 12.6 hours of sunshine a day, there is plenty of sun. Rain falls on about 8 days, adding up to 46 mm. All in all, July is a good month for a holiday in Uummannaq.

Uummannaq in July
58August11° · Sea 5° · 9.0 h

In August, Uummannaq is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 5.0 °C – swimming is only for the hardy. With around 9.0 hours of sunshine a day, there is plenty of sun. Rain is frequent, with about 9 rainy days and 57 mm in total. All in all, August is a so-so month for a holiday in Uummannaq.

Uummannaq in August
31September6° · Sea 3° · 6.0 h

In September, Uummannaq is cold: daytime highs average 6 °C, and nights cool down to about 1 °C. The sea averages 3.4 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Rain falls on about 8 days, adding up to 41 mm. Snow falls on about 4 days. All in all, September is not an ideal month for a holiday in Uummannaq.

Uummannaq in September
23October0° · Sea 1° · 2.3 h

In October, Uummannaq is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−4 °C). The sea averages 1.1 °C – swimming is only for the hardy. The sun is scarce, with only about 2.3 hours a day. Precipitation falls on about 7 days, totalling 37 mm; on about 6 of them it snows. All in all, October is not an ideal month for a holiday in Uummannaq.

Uummannaq in October
23November−4° · Sea 0° · 0.1 h

In November, Uummannaq is bitterly cold: daytime highs average −4 °C, and nights often drop below freezing (−8 °C). The sea averages 0.0 °C – swimming is only for the hardy. The sun is scarce, with only about 0.1 hours a day. Precipitation falls on about 7 days, totalling 31 mm; on about 7 of them it snows. All in all, November is not an ideal month for a holiday in Uummannaq.

Uummannaq in November
26December−6° · Sea 0° · 0.0 h

In December, Uummannaq is bitterly cold: daytime highs average −6 °C, and nights often drop below freezing (−11 °C). The sea averages −0.4 °C – swimming is only for the hardy. The sun stays below the horizon all day (polar night). Precipitation falls on about 6 days, totalling 22 mm; on about 5 of them it snows. All in all, December is not an ideal month for a holiday in Uummannaq.

Uummannaq in December

Climate in detail

Climate through the year

Long-term monthly averages. Tap a month to see its details.

Best time to visit

Nights and sleep in Uummannaq

How warm the nights get in each month, from the mean night-time low. Tap a month for details.

  • Frost below 0°
  • Cold 0–8°

FrostOctober: nights around −4°. Heating and warm bedding are a must.

The coolest nights are in March (−17°), the warmest in July (7°). Nights fall below 8 °C on average all year round, so the room should be heated.

Temperatures through the year

Average daytime high, night-time low and sea temperature per month.

OctoberDay 0°Night −4°Sea 1°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan27−8°−14°−0.6°0.0 h521
FebruaryFeb30−11°−17°−1.1°2.1 h312
MarchMar39−10°−17°−1.3°6.1 h517
AprilApr46−4°−12°−1.2°9.4 h624
MayMay443°−3°−0.8°12.5 h729
JuneJun5210°4°1.8°14.0 h736
JulyJul7013°7°4.5°12.6 h846
AugustAug5811°5°5.0°9.0 h957
SeptemberSep316°1°3.4°6.0 h841
OctoberOct230°−4°1.1°2.3 h737
NovemberNov23−4°−8°0.0°0.1 h731
DecemberDec26−6°−11°−0.4°0.0 h622

Climate averages 1996–2025 (sunshine partly WMO station normals 1991–2020), not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences

70.67° N, 52.13° W · 15 m · America/Nuuk

Swimming calendar

Sea temperature in Uummannaq

Monthly sea surface temperature with the range of cooler and warmer years.

Sea in October1.1°Ccold

8 in 10 years: 0.0 – 1.9 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 1.1°8 in 10 years 0.0° – 1.9°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Uummannaq ranges from −1.3 °C in March to 5.0 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

The sea warms up slowly: it is warmest in August, while the air already peaks in July. From October to April the sea is even warmer than the afternoon air. The sea temperature varies from year to year: in August, eight out of ten years were between 2.2 and 7.5 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan−0.6°−1.4°0.0°cold
FebruaryFeb−1.1°−1.5°−0.3°cold
MarchMar−1.3°−1.7°−0.5°cold
AprilApr−1.2°−1.7°−0.3°cold
MayMay−0.8°−1.5°0.6°cold
JuneJun1.8°−0.4°5.4°cold
JulyJul4.5°1.2°8.6°cold
AugustAug5.0°2.2°7.5°cold
SeptemberSep3.4°2.0°4.4°cold
OctoberOct1.1°0.0°1.9°cold
NovemberNov0.0°−1.2°0.5°cold
DecemberDec−0.4°−1.4°0.3°cold
Sunshine

Sunshine hours in Uummannaq

Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.

Per year
2,260 hours
Sunniest month
Jun · 14.0 h a day
Least sunshine
Jan · no direct sun
OctoberSunshine 2.3 hDaylight 9.1 hShare of daylight 25 %
SunshineDaylight

In October, the sun shines for about 2.3 of 9.1 hours of daylight in Uummannaq, 25 % of the daylight hours.

Sunshine hours: estimated from radiation data (ERA5, 1996–2025) and calibrated against measured station values; no weather station is close enough here. Daylight is the time from sunrise to sunset on the 15th of the month.

Rain

Rain in Uummannaq: rainy days and rainfall

A rainy day is a day with at least 1 mm of rain or snow; the amount is what falls in the whole month. Tap a month to select it.

Per year
374 mm on 78 days
Wettest month
Aug · 57 mm
Driest month
Feb · 12 mm
OctoberRainy days 7Rainfall 37 mm

In October, Uummannaq has about 7 rainy days with 37 mm of rain in total.

Sun protection

UV index in Uummannaq

How strong the sun is at noon, month by month, and how quickly unprotected skin burns.

Clear-sky UV in October
0 · lowLittle protection needed; sunglasses on bright days.

The sun is strongest in June (UV 4).

Minutes until sunburn in October

Very fair skin
over 2 h
Fair skin
over 2 h
Light brown skin
over 2 h
Olive skin
over 2 h

Rough guide for unprotected skin at noon under a clear sky; clouds lengthen the time, water, sand and snow shorten it. Sunscreen extends the time only partly.

Monthly values: clear-sky noon estimate from the sun's angle, ozone and altitude. UV today: Open-Meteo forecast.

Wind & clouds

Wind and clouds in Uummannaq

How breezy and how cloudy Uummannaq is through the year. Tap a month to select it on the whole page.

Wind

Typical daily peak of the wind in km/h: what the afternoon breeze usually reaches, not the gusts.

Year average
6 km/h · light breeze or less
Windiest month
Jul · 7 km/h
Calmest month
Mar · 5 km/h
OctoberWind 5 km/hBeaufort 1
20
WindBeaufort 4

In October, the wind in Uummannaq typically peaks at 5 km/h during the day: Beaufort 1, light breeze or less.

Breezy months for windsurfing and kiting

The daily breeze rarely reaches Beaufort 4 (20 km/h), so wind sports depend on single windy days.

Clouds

Average share of the sky covered by cloud, day and night.

Year average
65 % · variable cloud
Clearest month
Mar · 60 %
Cloudiest month
Oct · 70 %
OctoberCloud cover 70 %Sunshine 2.3 h

In October, cloud covers on average 70 % of the sky over Uummannaq: mostly cloudy, with about 2.3 hours of sunshine a day.

Wind: mean daily maximum of the hourly wind 10 m above ground (ERA5, 1996–2025). Gusts are stronger, and the model grid of about 28 km smooths out local effects such as capes and valley winds. Clouds: mean total cloud cover of all layers over day and night (ERA5, 1996–2025). Thin high cloud counts as cover even when the sun still shines through.

Snow

Snow in Uummannaq

When Uummannaq is likely to be white: the chance of seeing snow during a week's stay, the days with fresh snow and how much falls. Tap a month to select it.

Snow days a year
47 days
Fresh snow a year
161 cm
Snowy months
Oct – May

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 6Fresh snow 24 cmChance of snow 51 / 100

In October, Uummannaq has about 6 days with at least 1 cm of fresh snow, 24 cm in total. The chance of seeing snow during a week's stay is 51 out of 100: likely.

Snow days bring at least 1 cm of fresh snow. Fresh snow comes from ERA5 snowfall (1996–2025) at the height of the place, not on the slopes above it; the snow chance also weighs whether the snow settles. An estimate from climate averages, not a snow report.

Planning a trip to Uummannaq

Weather for your travel dates

Pick your arrival and length of stay, and we sum up the weather to expect.

Uummannaq in the school holidays

How the weather suits the usual holiday periods. Dates vary by school and region, so each holiday uses the months it usually falls in.

Uummannaq has its best school-holiday weather during the summer holidays (score 62) and its weakest during October half-term (score 23).

  • Easter holidays

    Mar – Apr

    44

    Fair

    • −6 °C by day
    • Sea −1 °C
    • 8.4 h of sun a day
    • 6 rainy days a month

    Keep in mind: Snow

  • May half-term

    May – Jun

    46

    Fair

    • 5 °C by day
    • Sea 0 °C
    • 12.8 h of sun a day
    • 7 rainy days a month

    Keep in mind: Snow

  • Summer holidays

    Jul – Aug

    62

    GoodBest holidays

    • 12 °C by day
    • Sea 5 °C
    • 10.3 h of sun a day
    • 9 rainy days a month
  • October half-term

    Oct

    23

    Poor

    • 0 °C by day
    • Sea 1 °C
    • 2.3 h of sun a day
    • 7 rainy days a month

    Keep in mind: Snow

  • Christmas holidays

    Dec – Jan

    27

    Poor

    • −7 °C by day
    • Sea 0 °C
    • 0.0 h of sun a day
    • 6 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 4 h 30 min
Distance
3,340 km
Time zone
UTC−1
Jet lag
Hardly any (under 3 h)

Estimated from the straight-line distance: 30 minutes for take-off and landing plus 830 km/h cruising speed.

Compare & alternatives

Compare

Uummannaq compared

Put Uummannaq side by side with another destination.

Nearby:
Compare with home:

Uummannaq vs Ilulissat

In October the holiday weather in Uummannaq and Ilulissat is about equally good (score 23 vs 25). During the day it is about as warm in Ilulissat as in Uummannaq. The sea in Ilulissat is 2 °C warmer. Ilulissat gets one more hour of sunshine a day.

Uummannaq vs Ilulissat, in October
in OctoberUummannaqIlulissat
Holiday weather score2325
Daytime high0°0°
Sea1°3°
Sunshine2 h3 h
Rainy days77
Best timeJulJul

Through the year

OctoberUummannaq 0°Ilulissat 0°
UummannaqIlulissat
Go to Ilulissat
Ranking

Greenland in October: the best places

In October, Uummannaq ranks 3 of 7 destinations in this country.

  1. Ilulissat0°3°25
  2. 2Qaqortoq5°2°24
  3. 3UummannaqThis page0°1°23
  4. 4Nanortalik4°2°22
  5. 5Nuuk3°3°19
  6. 6Tasiilaq3°2°17
  7. 7Sisimiut2°3°14
All destinations: Greenland

Near Uummannaq

Other destinations close by.

Places with a climate like Uummannaq

Destinations whose weather through the year is closest to Uummannaq's – good alternatives.

  1. 84 % similar25IlulissatGreenland0°3°Best time: Jul
  2. 59 % similar14SisimiutGreenland2°3°Best time: Jul
  3. 52 % similar18LongyearbyenSvalbard−2°2°Best time: Apr – Jun
  4. 45 % similar19NomeUSA2°5°Best time: Jun

Frequently asked questions about Uummannaq

When is the best time to visit Uummannaq?

The best time to visit Uummannaq is in July. That is when the holiday weather score, which combines temperature, sea, sunshine and rain, is highest.

How warm is the sea in Uummannaq?

The sea temperature in Uummannaq ranges from −1.3 °C in March to 5.0 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Uummannaq in October?

Only if you don't mind cold water: in October the sea averages just 1.1 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Uummannaq?

July is the warmest month, with average highs of 13 °C and nights around 7 °C. February is the coolest month at −11 °C.

When does it rain most in Uummannaq?

The wettest month is August with 57 mm of precipitation. The driest month is February with 12 mm.

How many hours of sunshine does Uummannaq get?

Uummannaq gets around 2,260 hours of sunshine a year. The sunniest month is June with 14.0 hours a day; in January there is practically no direct sun.

What time zone is Uummannaq in?

Uummannaq is on UTC−2 in January and UTC−1 in July.

How long is the flight from London to Uummannaq?

A nonstop flight from London to Uummannaq takes about 4 h 30 min, for a straight-line distance of about 3,340 km.

Which school holidays are best for Uummannaq?

Uummannaq has its best school-holiday weather during the summer holidays (score 62) and its weakest during October half-term (score 23). Holiday ratings (0–100): Easter holidays 44, May half-term 46, summer holidays 62, October half-term 23, Christmas holidays 27.