Tromso weather in October

In October, Tromso sees average daytime highs of 4°C and overnight lows near 0°C, with 128 mm of precipitation across 16.9 wet days and about 8.4 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 7°C in the first days to 2°C by the end. The sky is clear or mostly clear about 13% of the time in October, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of October to 6 hours by month's end. Set against the rest of the year, October is Tromso's 4th-clearest and 6th-windiest month. For the whole year in context, see Tromso's year-round climate.

Daytime high
6th warmest
Overnight low
7th coldest
Precipitation
128 mm
16.9 wet days
Daylight
8 h 24 min
7:17 AM – 3:42 PM
Cloud cover
75%
4th clearest
Wind
9 km/h
6th windiest
Solar energy
0.54 kWh/m²
Travel score
0.2
out of 10

Tromso is city in Tromsø municipality, Norway.

Air quality
Good
PM2.5 6.3 µg/m³ · 2019
Density
1,972/km²
people per km²
Founded
1794

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 7°C in the first days to 2°C by the end.

A typical October day in Tromso reaches about 4°C in the afternoon and slips back to 0°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -0°C and 9°C. Set against its neighbours, October runs about 6°C cooler than September and about 4°C warmer than November.

-10°10°151015202531
Avg high (°C)Avg low (°C)
183
273
373
473
572
672
762
862
962
1061
1151
1251
1351
1450
1540
1640
1740
1840
194-1
203-1
213-1
223-1
233-2
243-2
252-2
262-2
272-2
282-2
292-3
302-3
311-3

How October really feels in Tromso

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 28 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
28
wind chill below the day's low

The story in October is cold — wind chill drags the overnight "feels like" below the raw low.

Tromso weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-4° / -10°10514.715.20.80.0
Feb-4° / -10°9114.114.66.40.0
Mar-1° / -7°10215.616.310.90.0
Apr / -3°8514.612.715.50.0
May / 9116.16.921.11.1
Jun12° / 9315.20.6242.6
Jul15° / 9014.2023.34.0
Aug14° / 10215.3017.63.6
Sep10° / 12517.21.312.92.0
Oct / 12816.98.88.40.2
Nov-0° / -5°951512.22.70.0
Dec-3° / -8°10315.414.900.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 10% of October, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12971
23070
32971
42971
52971
62971
72971
82971
92971
102872
112674
122575
132575
142476
152377
162377
172179
182179
192179
202179
212080
221981
231981
241981
251981
261981
272080
282080
292080
302080
312080

Chance of precipitation in October

Any precipitationSnow

Tromso gets around 128 mm of rain and snow over 16.9 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 55% and peaks near 59% on the wettest days, and about 9 days bring snow.

0%20%40%60%151015202531
Rain chance (%)Snow chance (%)
15313
25314
35314
45315
55316
65317
75418
85419
95520
105622
115724
125825
135827
145829
155930
165932
175833
185834
195835
205736
215736
225637
235637
245538
255538
265538
275438
285438
295438
305438
315337

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in October

Winds average 9 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 10 h 42 min at the start of October to 6 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 282 minutes over October. Sunrise moves from 6:14 AM to 8:27 AM, and sunset from 4:53 PM to 2:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.76:144:53
210.56:184:48
310.46:224:43
410.26:264:39
510.16:304:34
69.96:344:29
79.86:384:25
89.66:424:20
99.56:464:15
109.36:514:10
119.26:554:06
129.06:594:01
138.97:033:56
148.77:083:51
158.67:123:47
168.47:173:42
178.37:213:37
188.17:253:32
198.07:303:28
207.87:343:23
217.67:393:18
227.57:443:13
237.37:483:08
247.27:533:03
257.07:582:58
266.98:022:53
276.78:072:48
286.58:122:44
296.48:172:38
306.28:222:33
316.08:272:28

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 0.54 kWh/m².

For context, solar energy here swings from a low near 0 kWh/m² to a high of 4.65 kWh/m² in June across the year — October's 0.54 kWh/m² falls in the middle.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.0Dim
21.0Dim
30.9Dim
40.9Dim
50.9Dim
60.8Dim
70.8Dim
80.8Dim
90.7Dim
100.7Dim
110.7Dim
120.6Dim
130.6Dim
140.6Dim
150.5Dim
160.5Dim
170.5Dim
180.5Dim
190.4Dim
200.4Dim
210.4Dim
220.4Dim
230.3Dim
240.3Dim
250.3Dim
260.3Dim
270.3Dim
280.3Dim
290.2Dim
300.2Dim
310.2Dim
Planning a trip in October

Is October a good time to visit Tromso?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.2
Sightseeing
6th-best month of the year
Beach & pool
never really warm enough

October is a weaker month for outdoor sightseeing in Tromso.

What to pack for Tromso in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Tromso sees daytime highs around 4°C and nights near 0°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 17 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Tromso in October

The nearest coast averages about 9°C in October — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 28 km away) is warmest in August at about 11°C and coldest in March near 4°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°C)Comfort
Jan5Bracing
Feb5Bracing
Mar4Bracing
Apr4Bracing
May6Bracing
Jun8Bracing
Jul10Bracing
Aug11Bracing
Sep10Bracing
Oct9Bracing
Nov7Bracing
Dec6Bracing

UV index in Tromso in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 0. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tromso peaks around July 15 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near January 1 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 2 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 15UV 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Low
May3Moderate
Jun3Moderate
Jul4Moderate
Aug3Moderate
Sep1Low
Oct0Low
Nov0Low
Dec0Low
Location & terrain

Where is Tromso?

Tromso sits at 69.6°N, 19.0°E, in Norway. The nearest listed city is Tromsdalen, 2.0 km away.

AltaKirunaLofotenLeviBodøMo i Rana

Topography around Tromso

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tromso.

Within 3 km, the terrain around Tromso has large variations in elevation — a maximum elevation change of 641 m around an average of 68 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,225 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,831 m.

The land around Tromso is covered by trees (39%) and water (37%) within 3 km, grassland (36%), water (26%) and trees (20%) within 16 km, and water (43%) and grassland (21%) within 80 km.

3 km
641 m
16 km
1,225 m
80 km
1,831 m
treesgrasslandartificial surfacesbare terrainsnow and icewaterwetlandmoss and lichen
October weather nearby: Tromsdalen 2.0 km · Harstad 134 km · Alta 169 km · Kiruna 206 km · Lofoten 235 km · Levi 312 km · Bodø 323 km · Mo i Rana 421 km

Norway travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 91% of US
price level, 2025
GDP per capita
$94,594
2025
Happiness
7.2 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.7
per 100k, 2023
Road deaths
2.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 613
Religion
Church of Norway 68%other Christian 4%Muslim 3%Roman Catholic 3%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Tromso (69.6489°, 18.9551°), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).