AI-generatedSisimiut at a glance
- Best time
- Jul
- Warmest month
- Jul · 12°
- Warmest sea
- Aug · 5.4°
- Sunshine a year
- 1,670 h
- Rain a year
- 555 mm
- Climate
- Subarctic
- Time zone
- UTC−2 / UTC−1
- Elevation
- 0 m
Climate in Sisimiut
Sisimiut has a subarctic climate: summers are short and cool, winters long and cold. July is the warmest month with average highs of 12 °C, while February is the coolest at −10 °C. With around 1,670 hours of sunshine a year, Sisimiut is moderately sunny; May is the sunniest month with 8.6 hours a day.
Holiday weather through the year
Best time to visit Sisimiut
The best time to visit Sisimiut is in July. The sea stays too cool for a classic beach holiday: even in August it only reaches 5.4 °C. Rain is frequent in November; the wettest month is October with 65 mm.
Sisimiut through the seasons
How the weather changes over the seasons, with averages for each.
Sisimiut in spring
Mar – May
Poor
- −8–4 °C by day
- Sea 0 °C
- 7.0 h of sun a day
- 19 rainy days in all
Sisimiut in summer
Jun – Aug
Fair
- 9–12 °C by day
- Sea 4 °C
- 7.4 h of sun a day
- 29 rainy days in all
Sisimiut in autumn
Sep – Nov
Poor
- −2–7 °C by day
- Sea 3 °C
- 2.8 h of sun a day
- 35 rainy days in all
Sisimiut in winter
Dec – Feb
Poor
- −10–−5 °C by day
- Sea 0 °C
- 1.0 h of sun a day
- 27 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
Rainy months
Nov
Rainy season or more than 12 rainy days
Snow
Sep – May
Snow on 2 or more days
Find your perfect month
Tell us what you like and we rate every month in Sisimiut for you.
Your best months: April – June
Based on the climate averages; tap a month to see its details.
Weather in October
Weather in October
Holiday weather in October
Poor
Best time to visit: July
Where to go in OctoberSea temperature in October
Keep in mindSnow
A typical day in October
- Morning, 08:00: about −2°
- Midday, 13:00: about 1°
- Afternoon, 16:00: about 2°
- Evening, 20:00: about 1°
- Night, 23:00: about −1°
09:3119:10
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 08:57–10:50 · evening 17:50–19:44
- Blue hour
- Morning 08:36–08:57 · evening 19:44–20:04
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 Sisimiut compared with home
Loading the climate at home …
Early or late October?
In October, daytime highs fall from about 5° at the start of the month to 0° at the end. The sea cools from 4° to 2°. The days get 3.8 h shorter.
| October | 1 Oct | 31 Oct |
|---|---|---|
| Daytime high | 5° | 0° |
| Night-time low | −1° | −5° |
| Sea | 4° | 2° |
| Daylight | 11.4 h | 7.6 h |
What is the weather like in Sisimiut in October?
In October, Sisimiut is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−3 °C). The sea averages 3.0 °C – swimming is only for the hardy. The sun is scarce, with only about 2.9 hours a day. Precipitation falls on about 11 days, totalling 65 mm; on about 9 of them it snows. All in all, October is not an ideal month for a holiday in Sisimiut.
More details for October
- Daylight
- 9 h 40 min09:31 – 19:10
- UV index
- 0 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 19 km/haverage daily peakAll months
- Cloud cover
- 74 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 9 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 %47 %
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
- Rain jacket or umbrella
Compare two months in Sisimiut
Pick two months to see how the weather differs. A tick marks the clearly better value; for temperatures it depends on your plans.
July has the better holiday weather in Sisimiut: score 57 against 14. In July, days are 10 °C warmer than in October. The sea is 2 °C warmer in July. July has 2 fewer rainy days. The sun shines 5 hours longer a day in July.
| Month | October | July |
|---|---|---|
| Holiday weather score | 14 | 57better |
| Daytime high | 2° | 12° |
| Night-time low | −3° | 5° |
| Sea | 3.0° | 4.6° |
| Sunshine | 2.9 h | 8.0 hbetter |
| Rainy days | 11 | 9better |
| Rainfall | 65 mm | 56 mm |
Based on the climate averages 1996–2025.
Sisimiut month by month
The typical weather for every month at a glance.
16January−8° · Sea 0° · 0.3 h
In January, Sisimiut is bitterly cold: daytime highs average −8 °C, and nights often drop below freezing (−14 °C). The sea averages −0.1 °C – swimming is only for the hardy. The sun is scarce, with only about 0.3 hours a day. Precipitation falls on about 10 days, totalling 40 mm; on about 11 of them it snows. All in all, January is not an ideal month for a holiday in Sisimiut.
Sisimiut in January27February−10° · Sea 0° · 2.7 h
In February, Sisimiut is bitterly cold: daytime highs average −10 °C, and nights often drop below freezing (−17 °C). The sea averages −0.4 °C – swimming is only for the hardy. The sun is scarce, with only about 2.7 hours a day. Precipitation falls on about 5 days, totalling 23 mm; on about 6 of them it snows. All in all, February is not an ideal month for a holiday in Sisimiut.
Sisimiut in February35March−8° · Sea 0° · 5.3 h
In March, Sisimiut is bitterly cold: daytime highs average −8 °C, and nights often drop below freezing (−15 °C). The sea averages −0.5 °C – swimming is only for the hardy. Expect around 5.3 hours of sunshine a day. Precipitation falls on about 5 days, totalling 24 mm; on about 6 of them it snows. All in all, March is not an ideal month for a holiday in Sisimiut.
Sisimiut in March38April−2° · Sea 0° · 7.1 h
In April, Sisimiut is bitterly cold: daytime highs average −2 °C, and nights often drop below freezing (−9 °C). The sea averages −0.2 °C – swimming is only for the hardy. The sun shines for around 7.1 hours a day. Precipitation falls on about 7 days, totalling 32 mm; on about 6 of them it snows. All in all, April is not an ideal month for a holiday in Sisimiut.
Sisimiut in April41May4° · Sea 1° · 8.6 h
In May, Sisimiut is cold: daytime highs average 4 °C, and nights often drop below freezing (−2 °C). The sea averages 0.5 °C – swimming is only for the hardy. The sun shines for around 8.6 hours a day. Rain falls on about 7 days, adding up to 35 mm. Snow falls on about 6 days. All in all, May is a so-so month for a holiday in Sisimiut.
Sisimiut in May44June9° · Sea 2° · 8.2 h
In June, Sisimiut is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sea averages 2.1 °C – swimming is only for the hardy. The sun shines for around 8.2 hours a day. Rain falls on about 9 days, adding up to 41 mm. Snow falls on about 2 days. All in all, June is a so-so month for a holiday in Sisimiut.
Sisimiut in June57July12° · Sea 5° · 8.0 h
In July, Sisimiut is cool: daytime highs average 12 °C, and nights cool down to about 5 °C. The sea averages 4.6 °C – swimming is only for the hardy. The sun shines for around 8.0 hours a day. Rain is frequent, with about 9 rainy days and 56 mm in total. All in all, July is a so-so month for a holiday in Sisimiut – and yet one of the best months here.
Sisimiut in July43August11° · Sea 5° · 6.0 h
In August, Sisimiut is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 5.4 °C – swimming is only for the hardy. Expect around 6.0 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 62 mm in total. All in all, August is a so-so month for a holiday in Sisimiut.
Sisimiut in August21September7° · Sea 5° · 4.8 h
In September, Sisimiut is cold: daytime highs average 7 °C, and nights cool down to about 2 °C. The sea averages 4.7 °C – swimming is only for the hardy. Expect around 4.8 hours of sunshine a day. Rain is frequent, with about 11 rainy days and 64 mm in total. Snow falls on about 4 days. All in all, September is not an ideal month for a holiday in Sisimiut.
Sisimiut in September14October2° · Sea 3° · 2.9 h
In October, Sisimiut is bitterly cold: daytime highs average 2 °C, and nights often drop below freezing (−3 °C). The sea averages 3.0 °C – swimming is only for the hardy. The sun is scarce, with only about 2.9 hours a day. Precipitation falls on about 11 days, totalling 65 mm; on about 9 of them it snows. All in all, October is not an ideal month for a holiday in Sisimiut.
Sisimiut in October11November−2° · Sea 1° · 0.8 h
In November, Sisimiut is bitterly cold: daytime highs average −2 °C, and nights often drop below freezing (−7 °C). The sea averages 1.2 °C – swimming is only for the hardy. The sun is scarce, with only about 0.8 hours a day. Precipitation falls on about 13 days, totalling 64 mm; on about 12 of them it snows. All in all, November is not an ideal month for a holiday in Sisimiut.
Sisimiut in November14December−5° · Sea 0° · 0.0 h
In December, Sisimiut is bitterly cold: daytime highs average −5 °C, and nights often drop below freezing (−10 °C). The sea averages 0.4 °C – swimming is only for the hardy. There is practically no direct sunshine: the sun barely rises above the horizon. Precipitation falls on about 12 days, totalling 49 mm; on about 12 of them it snows. All in all, December is not an ideal month for a holiday in Sisimiut.
Sisimiut in DecemberClimate in detail
Year & climate table
Climate through the year
Long-term monthly averages. Tap a month to see its details.
Nights and sleep in Sisimiut
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 −3°. Heating and warm bedding are a must.
The coolest nights are in February (−17°), the warmest in August (5°). 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.
| Month | Score | Day | Night | Sea | Sun | Rain days | Rain mm |
|---|---|---|---|---|---|---|---|
| JanuaryJan | 16 | −8° | −14° | −0.1° | 0.3 h | 10 | 40 |
| FebruaryFeb | 27 | −10° | −17° | −0.4° | 2.7 h | 5 | 23 |
| MarchMar | 35 | −8° | −15° | −0.5° | 5.3 h | 5 | 24 |
| AprilApr | 38 | −2° | −9° | −0.2° | 7.1 h | 7 | 32 |
| MayMay | 41 | 4° | −2° | 0.5° | 8.6 h | 7 | 35 |
| JuneJun | 44 | 9° | 2° | 2.1° | 8.2 h | 9 | 41 |
| JulyJul | 57 | 12° | 5° | 4.6° | 8.0 h | 9 | 56 |
| AugustAug | 43 | 11° | 5° | 5.4° | 6.0 h | 11 | 62 |
| SeptemberSep | 21 | 7° | 2° | 4.7° | 4.8 h | 11 | 64 |
| OctoberOct | 14 | 2° | −3° | 3.0° | 2.9 h | 11 | 65 |
| NovemberNov | 11 | −2° | −7° | 1.2° | 0.8 h | 13 | 64 |
| DecemberDec | 14 | −5° | −10° | 0.4° | 0.0 h | 12 | 49 |
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
66.94° N, 53.67° W · 0 m · America/Nuuk
Sea temperature
Sea temperature in Sisimiut
Monthly sea surface temperature with the range of cooler and warmer years.
8 in 10 years: 2.1 – 4.0 °C
Swimming season: Always below 20 °C
- cold
- fresh
- refreshing
- pleasant
- warm
- very warm
The sea temperature in Sisimiut ranges from −0.5 °C in March to 5.4 °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 4.6 and 6.5 °C.
| Month | Average | Cool year | Warm year | Feels |
|---|---|---|---|---|
| JanuaryJan | −0.1° | −1.1° | 0.7° | cold |
| FebruaryFeb | −0.4° | −1.4° | 0.4° | cold |
| MarchMar | −0.5° | −1.4° | 0.2° | cold |
| AprilApr | −0.2° | −1.4° | 0.6° | cold |
| MayMay | 0.5° | −0.9° | 1.6° | cold |
| JuneJun | 2.1° | 0.7° | 3.7° | cold |
| JulyJul | 4.6° | 3.8° | 5.5° | cold |
| AugustAug | 5.4° | 4.6° | 6.5° | cold |
| SeptemberSep | 4.7° | 3.8° | 5.6° | cold |
| OctoberOct | 3.0° | 2.1° | 4.0° | cold |
| NovemberNov | 1.2° | 0.4° | 2.1° | cold |
| DecemberDec | 0.4° | −0.3° | 1.0° | cold |
Sunshine
Sunshine hours in Sisimiut
Average hours of bright sunshine per day, next to the length of the day. Tap a month to select it.
In October, the sun shines for about 2.9 of 9.7 hours of daylight in Sisimiut, 30 % 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 Sisimiut: 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.
In October, Sisimiut has about 11 rainy days with 65 mm of rain in total.
UV index
UV index in Sisimiut
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 Sisimiut
How breezy and how cloudy Sisimiut 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.
In October, the wind in Sisimiut typically peaks at 19 km/h during the day: Beaufort 3, gentle breeze.
Breezy months for windsurfing and kiting
From Beaufort 4 (20 km/h) the daily breeze is usually enough for windsurfing and often for kiting: Nov – Jan.
Clouds
Average share of the sky covered by cloud, day and night.
In October, cloud covers on average 74 % of the sky over Sisimiut: mostly cloudy, with about 2.9 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 Sisimiut
When Sisimiut 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 calendar
- hardly any
- possible
- likely
- very likely
In October, Sisimiut has about 9 days with at least 1 cm of fresh snow, 36 cm in total. The chance of seeing snow during a week's stay is 59 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 Sisimiut
Weather for your travel dates
Pick your arrival and length of stay, and we sum up the weather to expect.
Sisimiut 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.
Sisimiut has its best school-holiday weather during the summer holidays (score 48) and its weakest during October half-term (score 14).
- 37
Easter holidays
Mar – Apr
Poor
- −4 °C by day
- Sea 0 °C
- 6.6 h of sun a day
- 6 rainy days a month
Keep in mind: Snow
- 42
May half-term
May – Jun
Fair
- 5 °C by day
- Sea 1 °C
- 8.5 h of sun a day
- 8 rainy days a month
Keep in mind: Snow
- 48
Summer holidays
Jul – Aug
FairBest holidays
- 11 °C by day
- Sea 5 °C
- 6.7 h of sun a day
- 10 rainy days a month
- 14
October half-term
Oct
Poor
- 2 °C by day
- Sea 3 °C
- 2.9 h of sun a day
- 11 rainy days a month
Keep in mind: Snow
- 15
Christmas holidays
Dec – Jan
Poor
- −6 °C by day
- Sea 0 °C
- 0.2 h of sun a day
- 11 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.
Good to know: Greenland
- Currency
- Danish Krone (DKK)
- Language
- Kalaallisut
- Sockets
- Type C, E, F, K · 230 V
- Traffic
- Drives on the right
- Dialling code
- +299
- Emergency number
- 112
UK plugs need a travel adapter
Sources: GeoNames (CC BY 4.0) and Wikidata (CC0). Please check details before you travel.
Compare & alternatives
Compare with another place
Sisimiut compared
Put Sisimiut side by side with another destination.
Sisimiut vs Ilulissat
In October Ilulissat has the better holiday weather (score 25 vs 14). During the day Ilulissat is 2 °C cooler than Sisimiut. The sea is about equally warm.
| in October | Sisimiut | Ilulissat |
|---|---|---|
| Holiday weather score | 14 | 25 |
| Daytime high | 2° | 0° |
| Sea | 3° | 3° |
| Sunshine | 3 h | 3 h |
| Rainy days | 11 | 7 |
| Best time | Jul | Jul |
Through the year
Best places in the country
Greenland in October: the best places
In October, Sisimiut ranks 7 of 7 destinations in this country.
- Ilulissat0°3°25
- 2Qaqortoq5°2°24
- 3Uummannaq0°1°23
- 4Nanortalik4°2°22
- 5Nuuk3°3°19
- 6Tasiilaq3°2°17
- 7SisimiutThis page2°3°14
Places nearby
Near Sisimiut
Other destinations close by.
Places with a similar climate
Places with a climate like Sisimiut
Destinations whose weather through the year is closest to Sisimiut's – good alternatives.
Frequently asked questions about Sisimiut
When is the best time to visit Sisimiut?
The best time to visit Sisimiut 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 Sisimiut?
The sea temperature in Sisimiut ranges from −0.5 °C in March to 5.4 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.
Can you swim in Sisimiut in October?
Only if you don't mind cold water: in October the sea averages just 3.0 °C. Comfortable swimming temperatures are not reached at any time of year.
What is the warmest month in Sisimiut?
July is the warmest month, with average highs of 12 °C and nights around 5 °C. February is the coolest month at −10 °C.
When does it rain most in Sisimiut?
Rain is frequent in November; the wettest month is October with 65 mm. The driest month is February with 23 mm.
How many hours of sunshine does Sisimiut get?
Sisimiut gets around 1,670 hours of sunshine a year. The sunniest month is May with 8.6 hours a day; in December there is practically no direct sun.
What time zone is Sisimiut in?
Sisimiut is on UTC−2 in January and UTC−1 in July.
How long is the flight from London to Sisimiut?
A nonstop flight from London to Sisimiut takes about 4 h 30 min, for a straight-line distance of about 3,340 km.
Which school holidays are best for Sisimiut?
Sisimiut has its best school-holiday weather during the summer holidays (score 48) and its weakest during October half-term (score 14). Holiday ratings (0–100): Easter holidays 37, May half-term 42, summer holidays 48, October half-term 14, Christmas holidays 15.