Norrtälje weather in October

In October, Norrtälje sees average daytime highs of 10°C and overnight lows near 5°C, with 50 mm of precipitation across 9.7 wet days and about 9.8 hours of daylight. It is the 6th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 12°C in the first days to 7°C by the end. The sky is clear or mostly clear about 18% of the time in October, and the air most often feels dry.

Daylight stretches from about 11 h 06 min at the start of October to 8 h 24 min by month's end. Set against the rest of the year, October is Norrtälje's 8th-clearest and 5th-windiest month. For the whole year in context, see Norrtälje's year-round climate.

Daytime high
10°
6th warmest
Overnight low
7th coldest
Precipitation
50 mm
9.7 wet days
Daylight
9 h 48 min
6:37 AM – 4:23 PM
Cloud cover
71%
8th clearest
Wind
16 km/h
5th windiest
Solar energy
1.22 kWh/m²
Travel score
2.0
out of 10

Norrtälje is urban area in Norrtälje Municipality, Sweden.

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 12°C in the first days to 7°C by the end.

A typical October day in Norrtälje reaches about 10°C in the afternoon and slips back to 5°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 13°C. Set against its neighbours, October runs about 6°C cooler than September and about 5°C warmer than November.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1127
2127
3127
4127
5127
6117
7116
8116
9116
10116
11106
12106
13105
14105
15105
1695
1795
1895
1995
2094
2184
2284
2384
2484
2584
2684
2784
2874
2973
3073
3173

How October really feels in Norrtälje

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 6 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
6
wind chill below the day's low

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

Norrtälje weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°368.66.56.50.0
Feb / -4°297.378.70.0
Mar / -2°297.4511.30.0
Apr / 317.8214.11.4
May13° / 398.50.116.73.8
Jun17° / 10°5910018.25.5
Jul20° / 13°6210.2017.66.4
Aug20° / 13°6411.5015.36.0
Sep15° / 509012.64.6
Oct10° / 509.70.39.82.0
Nov / 4910.73.17.20.2
Dec / -2°4610.86.45.80.0

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 15% of October, with mostly cloudy or overcast conditions the remaining 67%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23862
33862
43862
53862
63862
73763
83763
93763
103664
113565
123565
133565
143466
153367
163367
173268
183169
193169
203070
213070
222971
232971
242971
252971
262971
272872
282872
292872
302872
312872

Chance of precipitation in October

Any precipitationSnow

Norrtälje gets around 50 mm of rain and snow over 9.7 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 31% and peaks near 32% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
1290
2290
3300
4300
5310
6310
7320
8320
9320
10320
11320
12320
13320
14320
15320
16321
17311
18311
19311
20311
21311
22312
23312
24312
25313
26313
27323
28324
29324
30314
31315

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 (%)Comfortable (%)
1982
2982
3991
4991
5991
6991
7991
8991
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in October

Winds average 16 km/h in October.

Across October, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

Sunrise & sunset in October

DaylightNight

Daylight runs from about 11 h 06 min at the start of October to 8 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 162 minutes over October. Sunrise moves from 6:00 AM to 7:15 AM, and sunset from 5:09 PM to 3:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.16:005:09
211.16:025:05
311.06:055:02
410.96:074:59
510.86:104:56
610.76:124:53
710.66:144:50
810.56:174:47
910.46:194:44
1010.36:224:41
1110.26:244:38
1210.16:274:35
1310.06:294:32
1410.06:324:29
159.96:344:26
169.86:374:23
179.76:394:21
189.66:424:18
199.56:454:15
209.46:474:12
219.36:504:09
229.26:524:06
239.16:554:04
249.16:574:01
259.07:003:58
268.97:023:55
278.87:053:53
288.77:083:50
298.67:103:47
308.57:133:45
318.47:153:42

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 1.22 kWh/m².

For context, solar energy here swings from a low near 0.19 kWh/m² to a high of 5.93 kWh/m² in June across the year — October's 1.22 kWh/m² falls in the middle.

00.511.522.5151015202531
Solar energy (kWh/m²)Level
11.9Dim
21.8Dim
31.8Dim
41.7Dim
51.7Dim
61.6Dim
71.6Dim
81.6Dim
91.5Dim
101.4Dim
111.4Dim
121.4Dim
131.3Dim
141.3Dim
151.2Dim
161.2Dim
171.2Dim
181.1Dim
191.1Dim
201.1Dim
211.0Dim
221.0Dim
231.0Dim
240.9Dim
250.9Dim
260.9Dim
270.8Dim
280.8Dim
290.8Dim
300.8Dim
310.7Dim
Planning a trip in October

Is October a good time to visit Norrtälje?

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

2.0
Sightseeing
6th-best month of the year
0.0
Beach & pool
6th-best month of the year

October is a weaker month for outdoor sightseeing in Norrtälje.

What to pack for Norrtälje in October

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

In October, Norrtälje sees daytime highs around 10°C and nights near 5°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

Sea temperature near Norrtälje in October

The nearest coast averages about 10°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 18 km away) is warmest in August at about 17°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°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan3Bracing
Feb1Bracing
Mar2Bracing
Apr3Bracing
May6Bracing
Jun11Bracing
Jul16Cool
Aug17Cool
Sep14Bracing
Oct10Bracing
Nov7Bracing
Dec4Bracing

UV index in Norrtälje 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 Norrtälje peaks around June 17 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 19 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 17UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Norrtälje?

Norrtälje sits at 59.8°N, 18.7°E, 13 m above sea level, in Sweden. The nearest listed city is Åkersberga, 38 km away.

Topography around Norrtälje

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

Within 3 km, the terrain around Norrtälje has only modest variations in elevation — a maximum elevation change of 51 m around an average of 17 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, only modest variations in elevation — a maximum elevation change of 111 m.

The land around Norrtälje is covered by trees (43%) and grassland (23%) within 3 km, trees (61%) within 16 km, and water (53%) and trees (35%) within 80 km.

3 km
51 m
16 km
68 m
80 km
111 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Åkersberga 38 km · Vallentuna 43 km · Täby 50 km · Märsta 50 km · Gustavsberg 51 km · Upplands Väsby 52 km · Boo 53 km · Lidingö 54 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 Norrtälje (59.758°, 18.705°, elevation 13 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).