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Norway

Alta weather & best time to visit

Nature escape

Alta at a glance

Best time
Jul
Warmest month
Jul · 17°
Warmest sea
Aug · 10.6°
Sunshine a year
1,270 h
Rain a year
637 mm
Climate
Subarctic
Time zone
UTC+1 / UTC+2
Elevation
65 m

Climate in Alta

Alta has a subarctic climate: summers are short and cool, winters long and cold. July is the warmest month with average highs of 17 °C, while February is the coolest at −4 °C. With around 1,270 hours of sunshine a year, Alta is rather dull; June is the sunniest month with 7.3 hours a day.

Holiday weather through the year

Best time to visit

Best time to visit Alta

The best time to visit Alta is in July. The sea stays too cool for a classic beach holiday: even in August it only reaches 10.6 °C. Rain is frequent from April to June and from August to October; the wettest month is July with 77 mm.

Alta through the seasons

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

Alta in spring

Mar – May

21

Poor

  • −1–9 °C by day
  • Sea 3 °C
  • 5.5 h of sun a day
  • 38 rainy days in all

Alta in summer

Jun – Aug

61

Good

  • 14–17 °C by day
  • Sea 9 °C
  • 6.1 h of sun a day
  • 41 rainy days in all

Alta in autumn

Sep – Nov

19

Poor

  • 0–11 °C by day
  • Sea 8 °C
  • 1.6 h of sun a day
  • 36 rainy days in all

Alta in winter

Dec – Feb

18

Poor

  • −4–−2 °C by day
  • Sea 5 °C
  • 0.6 h of sun a day
  • 30 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

Apr – Jun, Aug – Oct

Rainy season or more than 12 rainy days

Snow

Oct – May

Snow on 2 or more days

Find your perfect month

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

Swimming in the sea
Sunshine
Little rain

Your best months: 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

11

Holiday weather in October

Poor

Best time to visit: July

Keep in mindFrequent rainSnow

A typical day in October

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

07:3516:50

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 06:56–09:12 · evening 15:13–17:29
Blue hour
Morning 06:33–06:56 · evening 17:29–17:52

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 Alta compared with home

Home:

Loading the climate at home …

Early or late October?

In October, daytime highs fall from about 8° at the start of the month to 2° at the end. The sea cools from 9° to 7°. The days get 4.7 h shorter.

Early or late October?
October1 Oct31 Oct
Daytime high8°2°
Night-time low2°−3°
Sea9°7°
Daylight11.3 h6.6 h

What is the weather like in Alta in October?

In October, Alta is cold: daytime highs average 5 °C, and nights cool down to about 0 °C. The sea averages 8.1 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. Rain is frequent, with about 13 rainy days and 54 mm in total. Snow falls on about 6 days. All in all, October is not an ideal month for a holiday in Alta.

More details for October

Daylight
9 h 15 min07:35 – 16:50
UV index
0 · lowclear sky, noon (estimate)All months
Muggy days
0 daysdew point 18 °C or moreAll months
Wind
13 km/haverage daily peakAll months
Cloud cover
84 %on averageAll months
Hot days
0 days30 °C or more
Snow days
6 days1 cm or more of fresh snowAll months
Time zone
UTC+2offset from UTC

How the score comes together

  • Temperatureweight 50 %0 %
  • Sunshineweight 20 %0 %
  • Few rainy daysweight 30 %37 %

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 Alta

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 Alta: score 71 against 11. In July, days are 12 °C warmer than in October. The sea is 2 °C warmer in July. July has one more rainy day. The sun shines 5 hours longer a day in July.

October vs July, Alta
MonthOctoberJuly
Holiday weather score1171better
Daytime high5°17°
Night-time low0°11°
Sea8.1°10.1°
Sunshine1.6 h6.6 hbetter
Rainy days13better14
Rainfall54 mmbetter77 mm

Based on the climate averages 1996–2025.

Alta month by month

The typical weather for every month at a glance.

17January−3° · Sea 5° · 0.0 h

In January, Alta is bitterly cold: daytime highs average −4 °C, and nights often drop below freezing (−10 °C). The sea averages 4.6 °C – swimming is only for the hardy. The sun stays below the horizon all day (polar night). Precipitation falls on about 10 days, totalling 43 mm; on about 10 of them it snows. All in all, January is not an ideal month for a holiday in Alta.

Alta in January
18February−4° · Sea 4° · 1.8 h

In February, Alta is bitterly cold: daytime highs average −4 °C, and nights often drop below freezing (−11 °C). The sea averages 3.6 °C – swimming is only for the hardy. The sun is scarce, with only about 1.8 hours a day. Precipitation falls on about 10 days, totalling 38 mm; on about 9 of them it snows. All in all, February is not an ideal month for a holiday in Alta.

Alta in February
18March−1° · Sea 3° · 4.2 h

In March, Alta is bitterly cold: daytime highs average −1 °C, and nights often drop below freezing (−8 °C). The sea averages 2.8 °C – swimming is only for the hardy. Expect around 4.2 hours of sunshine a day. Precipitation falls on about 11 days, totalling 41 mm; on about 10 of them it snows. All in all, March is not an ideal month for a holiday in Alta.

Alta in March
22April4° · Sea 3° · 5.8 h

In April, Alta is cold: daytime highs average 4 °C, and nights often drop below freezing (−3 °C). The sea averages 2.6 °C – swimming is only for the hardy. Expect around 5.8 hours of sunshine a day. Precipitation falls on about 12 days, totalling 42 mm; on about 10 of them it snows. All in all, April is not an ideal month for a holiday in Alta.

Alta in April
23May9° · Sea 4° · 6.5 h

In May, Alta is cold: daytime highs average 9 °C, and nights cool down to about 2 °C. The sea averages 4.3 °C – swimming is only for the hardy. The sun shines for around 6.5 hours a day. It rains often – on about 14 days, adding up to 55 mm. Snow falls on about 6 days. All in all, May is not an ideal month for a holiday in Alta.

Alta in May
53June14° · Sea 7° · 7.3 h

In June, Alta is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. The sea averages 7.3 °C – swimming is only for the hardy. The sun shines for around 7.3 hours a day. It rains often – on about 14 days, adding up to 73 mm. All in all, June is a so-so month for a holiday in Alta.

Alta in June
71July17° · Sea 10° · 6.6 h

In July, Alta is mild: daytime highs average 17 °C, and nights cool down to about 11 °C. The sea averages 10.1 °C – swimming is only for the hardy. The sun shines for around 6.6 hours a day. It rains often – on about 14 days, adding up to 77 mm. All in all, July is a good month for a holiday in Alta.

Alta in July
59August16° · Sea 11° · 4.4 h

In August, Alta is cool: daytime highs average 16 °C, and nights cool down to about 9 °C. The sea averages 10.6 °C – swimming is only for the hardy. Expect around 4.4 hours of sunshine a day. Rain is frequent, with about 13 rainy days and 73 mm in total. All in all, August is a so-so month for a holiday in Alta.

Alta in August
30September11° · Sea 9° · 3.2 h

In September, Alta is cool: daytime highs average 11 °C, and nights cool down to about 5 °C. The sea averages 9.3 °C – swimming is only for the hardy. The sun is scarce, with only about 3.2 hours a day. Rain is frequent, with about 13 rainy days and 63 mm in total. All in all, September is not an ideal month for a holiday in Alta.

Alta in September
11October5° · Sea 8° · 1.6 h

In October, Alta is cold: daytime highs average 5 °C, and nights cool down to about 0 °C. The sea averages 8.1 °C – swimming is only for the hardy. The sun is scarce, with only about 1.6 hours a day. Rain is frequent, with about 13 rainy days and 54 mm in total. Snow falls on about 6 days. All in all, October is not an ideal month for a holiday in Alta.

Alta in October
17November0° · Sea 7° · 0.1 h

In November, Alta is bitterly cold: daytime highs average 0 °C, and nights often drop below freezing (−6 °C). The sea averages 6.8 °C – swimming is only for the hardy. The sun is scarce, with only about 0.1 hours a day. Precipitation falls on about 10 days, totalling 40 mm; on about 8 of them it snows. All in all, November is not an ideal month for a holiday in Alta.

Alta in November
18December−2° · Sea 6° · 0.0 h

In December, Alta is bitterly cold: daytime highs average −2 °C, and nights often drop below freezing (−8 °C). The sea averages 5.9 °C – swimming is only for the hardy. The sun stays below the horizon all day (polar night). Precipitation falls on about 10 days, totalling 41 mm; on about 9 of them it snows. All in all, December is not an ideal month for a holiday in Alta.

Alta in December

Climate in detail

Year & climate table

Climate through the year

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

Best time to visit

Nights and sleep in Alta

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°
  • Cool 8–15°

ColdOctober: nights around 0°. The room should be heated.

The coolest nights are in February (−11°), the warmest in July (11°). Nights fall below 8 °C on average from September to June, so the room should be heated.

Temperatures through the year

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

OctoberDay 5°Night 0°Sea 8°
DayNightSea
MonthScoreDayNightSeaSunRain daysRain mm
JanuaryJan17−4°−10°4.6°0.0 h1043
FebruaryFeb18−4°−11°3.6°1.8 h1038
MarchMar18−1°−8°2.8°4.2 h1141
AprilApr224°−3°2.6°5.8 h1242
MayMay239°2°4.3°6.5 h1455
JuneJun5314°7°7.3°7.3 h1473
JulyJul7117°11°10.1°6.6 h1477
AugustAug5916°9°10.6°4.4 h1373
SeptemberSep3011°5°9.3°3.2 h1363
OctoberOct115°0°8.1°1.6 h1354
NovemberNov170°−6°6.8°0.1 h1040
DecemberDec18−2°−8°5.9°0.0 h1041

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

69.97° N, 23.27° E · 65 m · Europe/Oslo

Sea temperature
Swimming calendar

Sea temperature in Alta

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

Sea in October8.1°Ccold

8 in 10 years: 7.6 – 9.4 °C

Swimming season: Always below 20 °C

  • cold
  • fresh
  • refreshing
  • pleasant
  • warm
  • very warm
OctoberMean sea temperature 8.1°8 in 10 years 7.6° – 9.4°
20°
Mean sea temperature8 in 10 years20 °C – comfortable for swimming

The sea temperature in Alta ranges from 2.6 °C in April to 10.6 °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 March 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 9.7 and 12.0 °C.

Sea temperature by month
MonthAverageCool yearWarm yearFeels
JanuaryJan4.6°3.6°5.4°cold
FebruaryFeb3.6°2.4°4.6°cold
MarchMar2.8°1.8°3.7°cold
AprilApr2.6°1.3°3.7°cold
MayMay4.3°3.5°5.4°cold
JuneJun7.3°6.3°8.4°cold
JulyJul10.1°8.7°11.7°cold
AugustAug10.6°9.7°12.0°cold
SeptemberSep9.3°8.4°10.8°cold
OctoberOct8.1°7.6°9.4°cold
NovemberNov6.8°6.1°8.0°cold
DecemberDec5.9°5.1°6.6°cold
Sunshine
Sunshine

Sunshine hours in Alta

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

Per year
1,270 hours
Sunniest month
Jun · 7.3 h a day
Least sunshine
Jan · no direct sun
OctoberSunshine 1.6 hDaylight 9.2 hShare of daylight 17 %
SunshineDaylight

In October, the sun shines for about 1.6 of 9.2 hours of daylight in Alta, 17 % 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

Rain in Alta: 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
637 mm on 144 days
Wettest month
Jul · 77 mm
Driest month
Feb · 38 mm
OctoberRainy days 13Rainfall 54 mm

In October, Alta has about 13 rainy days with 54 mm of rain in total.

UV index
Sun protection

UV index in Alta

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 & clouds

Wind and clouds in Alta

How breezy and how cloudy Alta 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
13 km/h · gentle breeze
Windiest month
Feb · 14 km/h
Calmest month
Jul · 12 km/h
OctoberWind 13 km/hBeaufort 3
20
WindBeaufort 4

In October, the wind in Alta typically peaks at 13 km/h during the day: Beaufort 3, gentle breeze.

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
80 % · mostly overcast
Clearest month
Apr · 75 %
Cloudiest month
Nov · 84 %
OctoberCloud cover 84 %Sunshine 1.6 h

In October, cloud covers on average 84 % of the sky over Alta: mostly overcast, with about 1.6 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

Snow in Alta

When Alta 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
70 days
Fresh snow a year
211 cm
Snowy months
Oct – Apr

Snow calendar

  • hardly any
  • possible
  • likely
  • very likely
OctoberDays with fresh snow 6Fresh snow 19 cmChance of snow 51 / 100

In October, Alta has about 6 days with at least 1 cm of fresh snow, 19 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 Alta

Weather for your travel dates

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

Alta 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.

Alta has its best school-holiday weather during the summer holidays (score 63) and its weakest during October half-term (score 11).

  • Easter holidays

    Mar – Apr

    21

    Poor

    • 2 °C by day
    • Sea 3 °C
    • 5.3 h of sun a day
    • 12 rainy days a month

    Keep in mind: Frequent rain, Snow

  • May half-term

    May – Jun

    29

    Poor

    • 10 °C by day
    • Sea 5 °C
    • 6.7 h of sun a day
    • 14 rainy days a month

    Keep in mind: Frequent rain, Snow

  • Summer holidays

    Jul – Aug

    63

    GoodBest holidays

    • 16 °C by day
    • Sea 10 °C
    • 5.2 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain

  • October half-term

    Oct

    11

    Poor

    • 5 °C by day
    • Sea 8 °C
    • 1.6 h of sun a day
    • 13 rainy days a month

    Keep in mind: Frequent rain, Snow

  • Christmas holidays

    Dec – Jan

    18

    Poor

    • −3 °C by day
    • Sea 5 °C
    • 0.0 h of sun a day
    • 10 rainy days a month

    Keep in mind: Snow

Based on the climate averages 1996–2025.

Getting there

Flying from

Nonstop flight
about 3 h 25 min
Distance
2,390 km
Time zone
UTC+2
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: Norway

Currency
Norwegian Krone (NOK)
Languages
Norwegian, Norwegian Bokmål, Norwegian Nynorsk
Sockets
Type C, F · 230 V
Traffic
Drives on the right
Dialling code
+47
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

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Alta compared

Put Alta side by side with another destination.

Nearby:
Compare with home:

Alta vs Lakselv

In October the holiday weather in Alta and Lakselv is about equally good (score 11 vs 11). During the day it is about as warm in Lakselv as in Alta. The sea in Lakselv is 1 °C cooler.

Alta vs Lakselv, in October
in OctoberAltaLakselv
Holiday weather score1111
Daytime high5°5°
Sea8°7°
Sunshine2 h2 h
Rainy days1313
Best timeJulJul

Through the year

OctoberAlta 5°Lakselv 5°
AltaLakselv
Go to Lakselv
Best places in the country
Ranking

Norway in October: the best places

In October, Alta ranks 12 among the 31 nearest destinations in this country.

  1. Hønefoss10°22
  2. 2Måløy11°12°19
  3. 3Florø11°12°18
  4. 4Vadsø4°8°16
  5. 5Kirkenes4°8°16
  6. 6Ålesund11°12°16
  7. 7Lillehammer8°14
  8. 8Førde11°12°14
  9. 12AltaThis page5°8°11
All destinations: Norway
Places nearby

Near Alta

Other destinations close by.

Places with a similar climate

Places with a climate like Alta

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

  1. 83 % similar10SeveromorskRussia4°8°Best time: Jul
  2. 82 % similar11MurmanskRussia4°8°Best time: Jul
  3. 81 % similar16KirkenesNorway4°8°Best time: Jul – Aug
  4. 78 % similar4HonningsvågNorway6°8°Best time: Jul

Frequently asked questions about Alta

When is the best time to visit Alta?

The best time to visit Alta 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 Alta?

The sea temperature in Alta ranges from 2.6 °C in April to 10.6 °C in August. Even at its warmest the sea stays below 20 °C, so swimming is bracing at best.

Can you swim in Alta in October?

Only if you don't mind cold water: in October the sea averages just 8.1 °C. Comfortable swimming temperatures are not reached at any time of year.

What is the warmest month in Alta?

July is the warmest month, with average highs of 17 °C and nights around 11 °C. February is the coolest month at −4 °C.

When does it rain most in Alta?

Rain is frequent from April to June and from August to October; the wettest month is July with 77 mm. The driest month is February with 38 mm.

How many hours of sunshine does Alta get?

Alta gets around 1,270 hours of sunshine a year. The sunniest month is June with 7.3 hours a day; in January there is practically no direct sun.

What time zone is Alta in?

Alta is on UTC+1 in January and UTC+2 in July.

How long is the flight from London to Alta?

A nonstop flight from London to Alta takes about 3 h 25 min, for a straight-line distance of about 2,390 km.

Which school holidays are best for Alta?

Alta has its best school-holiday weather during the summer holidays (score 63) and its weakest during October half-term (score 11). Holiday ratings (0–100): Easter holidays 21, May half-term 29, summer holidays 63, October half-term 11, Christmas holidays 18.