Sundsvall weather in October

In October, Sundsvall sees average daytime highs of 7°C and overnight lows near 1°C, with 63 mm of precipitation across 10.2 wet days and about 9.5 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 5°C by the end. The sky is clear or mostly clear about 24% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of October to 8 hours by month's end. Set against the rest of the year, October is Sundsvall's 7th-clearest and 5th-windiest month. For the whole year in context, see Sundsvall's year-round climate.

Daytime high
7th warmest
Overnight low
7th coldest
Precipitation
63 mm
10.2 wet days
Daylight
9 h 30 min
6:50 AM – 4:21 PM
Cloud cover
68%
7th clearest
Wind
12 km/h
5th windiest
Solar energy
1.04 kWh/m²
Travel score
1.0
out of 10

Sundsvall is urban area in Sundsvall Municipality, Sweden.

Air quality
Good
PM2.5 5.8 µg/m³ · 2019
Founded
1621

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 10°C in the first days to 5°C by the end.

A typical October day in Sundsvall reaches about 7°C in the afternoon and slips back to 1°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 3°C and 12°C. Set against its neighbours, October runs about 7°C cooler than September and about 6°C warmer than November.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1114
2114
3103
4103
5103
6103
793
893
992
1092
1182
1282
1382
1481
1571
1671
1771
1871
1961
2060
2160
2260
2360
2450
2550
2650
2750
2850
295-1
304-1
314-1

How October really feels in Sundsvall

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 27 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
27
wind chill below the day's low

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

Sundsvall weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -9°489.89.65.60.0
Feb-2° / -9°347.88.48.30.0
Mar / -6°357.3711.30.0
Apr / -1°377.94.314.41.2
May13° / 449.80.617.33.6
Jun17° / 5810.6019.25.4
Jul20° / 11°7312.1018.55.9
Aug19° / 10°7511.7015.75.7
Sep14° / 559.6012.64.0
Oct / 6310.21.99.51.0
Nov / -3°5310.66.56.60.0
Dec-1° / -7°5010.58.94.70.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 11% of October, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23565
33565
43565
53664
63664
73664
83763
93862
103763
113862
123862
133862
143862
153862
163763
173763
183763
193763
203664
213565
223664
233466
243466
253466
263268
273268
283268
293268
303268
313169

Chance of precipitation in October

Any precipitationSnow

Sundsvall gets around 63 mm of rain and snow over 10.2 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 35% on the wettest days, and about 2 days bring snow.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1331
2331
3331
4331
5332
6332
7332
8333
9323
10323
11324
12314
13314
14315
15315
16305
17306
18306
19316
20317
21317
22328
23328
24339
253410
263410
273511
283511
293512
303512
313513

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 12 km/h in October.

Across October, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 hours at the start of October to 8 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 180 minutes over October. Sunrise moves from 6:08 AM to 7:34 AM, and sunset from 5:11 PM to 3:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.06:085:11
210.96:115:08
310.86:145:04
410.76:175:01
510.66:194:58
610.56:224:54
710.46:254:51
810.36:284:48
910.26:314:44
1010.16:334:41
1110.06:364:38
129.96:394:34
139.86:424:31
149.76:454:28
159.66:484:24
169.56:504:21
179.46:534:18
189.36:564:15
199.26:594:11
209.17:024:08
219.07:054:05
228.97:084:02
238.87:113:59
248.77:143:56
258.67:173:53
268.57:203:49
278.47:233:46
288.37:253:43
298.27:283:40
308.17:313:37
318.07:343:34

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.04 kWh/m².

For context, solar energy here swings from a low near 0.1 kWh/m² to a high of 5.57 kWh/m² in June across the year — October's 1.04 kWh/m² falls in the middle.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.6Dim
21.6Dim
31.5Dim
41.5Dim
51.4Dim
61.4Dim
71.4Dim
81.3Dim
91.3Dim
101.3Dim
111.2Dim
121.2Dim
131.1Dim
141.1Dim
151.1Dim
161.1Dim
171.0Dim
181.0Dim
190.9Dim
200.9Dim
210.9Dim
220.8Dim
230.8Dim
240.8Dim
250.8Dim
260.7Dim
270.7Dim
280.7Dim
290.6Dim
300.6Dim
310.6Dim
Planning a trip in October

Is October a good time to visit Sundsvall?

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

1.0
Sightseeing
7th-best month of the year
0.0
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Sundsvall.

What to pack for Sundsvall in October

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

In October, Sundsvall sees daytime highs around 7°C and nights near 1°C. Pack a warm layer. Worth having: a heavy coat and rain gear. About 10 days see rain.

a warm layera heavy coatrain gear

Sea temperature near Sundsvall 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 17 km away) is warmest in August at about 16°C and coldest in February near 1°C.

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

0°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan2Bracing
Feb1Bracing
Mar1Bracing
Apr2Bracing
May6Bracing
Jun10Bracing
Jul15Cool
Aug16Cool
Sep13Bracing
Oct9Bracing
Nov5Bracing
Dec3Bracing

UV index in Sundsvall in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sundsvall peaks around June 18 at about 4 (moderate) — a little sun protection helps at midday. It bottoms out near December 17 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 18UV 4Dec 17UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar1Low
Apr2Moderate
May4Moderate
Jun5Moderate
Jul4Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Sundsvall?

Sundsvall sits at 62.4°N, 17.3°E, 26 m above sea level, in Sweden. The nearest listed city is Härnösand, 42 km away.

ÖrnsköldsvikÖstersundGävleSandvikenFalunUmeå

Topography around Sundsvall

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

Within 3 km, the terrain around Sundsvall has only modest variations in elevation — a maximum elevation change of 241 m around an average of 70 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 343 m; within 80 km, significant variations in elevation — a maximum elevation change of 549 m.

The land around Sundsvall is covered by trees (54%) and artificial surfaces (29%) within 3 km, trees (61%) and water (23%) within 16 km, and trees (66%) and water (28%) within 80 km.

3 km
241 m
16 km
343 m
80 km
549 m
treesgrasslandcroplandartificial surfaceswater
October weather nearby: Härnösand 42 km · Hudiksvall 75 km · Örnsköldsvik 123 km · Östersund 162 km · Gävle 191 km · Sandviken 199 km · Falun 218 km · Umeå 218 km

Sweden travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 87% of US
price level, 2025
GDP per capita
$63,133
2025
Happiness
7.3 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
1.1
per 100k, 2023
Road deaths
3.1
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 609
Religion
Church of Sweden 54%none or unspecified 37%other 9%

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 Sundsvall (62.3913°, 17.3063°, elevation 26 m), 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).