Stjørdalshalsen weather in September

In September, Stjørdalshalsen sees average daytime highs of 13°C and overnight lows near 7°C, with 118 mm of precipitation across 15.9 wet days and about 12.7 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 15°C in the first days to 11°C by the end. The sky is clear or mostly clear about 16% of the time in September, and the air most often feels dry.

Daylight stretches from about 14 h 12 min at the start of September to 11 h 06 min by month's end. Set against the rest of the year, September is Stjørdalshalsen's 4th-clearest and 7th-windiest month. For the whole year in context, see Stjørdalshalsen's year-round climate.

Daytime high
13°
4th warmest
Overnight low
9th coldest
Precipitation
118 mm
15.9 wet days
Daylight
12 h 36 min
5:52 AM – 6:29 PM
Cloud cover
73%
4th clearest
Wind
9 km/h
7th windiest
Solar energy
2.13 kWh/m²
Travel score
3.2
out of 10

Stjørdalshalsen is town in Stjørdal Municipality, Norway.

Density
1,937/km²
people per km²
Founded
1997

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 15°C in the first days to 11°C by the end.

A typical September day in Stjørdalshalsen reaches about 13°C in the afternoon and slips back to 7°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 9°C and 18°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
1168
2158
3158
4158
5158
6158
7158
8158
9158
10148
11147
12147
13147
14147
15147
16137
17137
18137
19136
20136
21136
22126
23126
24126
25126
26125
27115
28115
29115
30115

How September really feels in Stjørdalshalsen

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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Stjørdalshalsen weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -5°11216.315.25.20.0
Feb / -6°9614.813.58.10.0
Mar / -4°10216.113.611.20.0
Apr / -0°7613.88.314.51.0
May12° / 8416.54.117.72.6
Jun15° / 11717.30.519.83.7
Jul18° / 10°10616.6018.94.8
Aug18° / 10°11516.3015.94.7
Sep13° / 11815.90.612.73.2
Oct / 10216.559.40.9
Nov / -2°9313.99.36.20.0
Dec / -4°1111613.44.20.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12278
22278
32377
42377
52476
62575
72575
82674
92674
102674
112773
122773
132674
142674
152773
162773
172773
182773
192773
202773
212773
222674
232674
242674
252674
262674
272674
282575
292674
302674

Chance of precipitation in September

Any precipitationSnow

Stjørdalshalsen gets around 118 mm of rain and snow over 15.9 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 54% and peaks near 55% on the wettest days, and about 1 day brings snow.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
1550
2550
3550
4540
5540
6540
7540
8540
9540
10541
11541
12541
13541
14541
15541
16541
17541
18542
19542
20542
21543
22543
23533
24534
25534
26535
27535
28536
29536
30537

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1973
2973
3973
4982
5982
6982
7991
8991
9991
10991
11991
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 14 h 12 min at the start of September to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 186 minutes over September. Sunrise moves from 5:09 AM to 6:32 AM, and sunset from 7:23 PM to 5:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:097:23
214.15:127:20
314.05:157:16
413.95:187:12
513.85:207:09
613.75:237:05
713.65:267:02
813.55:296:58
913.45:326:54
1013.35:356:51
1113.25:386:47
1213.15:416:44
1312.95:436:40
1412.85:466:36
1512.75:496:33
1612.65:526:29
1712.55:556:26
1812.45:586:22
1912.36:016:18
2012.26:036:15
2112.16:066:11
2212.06:096:08
2311.96:126:04
2411.86:156:00
2511.66:185:57
2611.56:215:53
2711.46:245:50
2811.36:265:46
2911.26:295:43
3011.16:325:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.13 kWh/m².

For context, solar energy here swings from a low near 0.06 kWh/m² to a high of 4.66 kWh/m² in May across the year — September's 2.13 kWh/m² falls in the middle.

0123151015202530
Solar energy (kWh/m²)Level
12.8Moderate
22.7Moderate
32.7Moderate
42.6Moderate
52.6Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.4Moderate
102.4Moderate
112.3Moderate
122.3Moderate
132.2Moderate
142.2Moderate
152.1Moderate
162.1Moderate
172.0Moderate
182.0Moderate
192.0Dim
201.9Dim
211.9Dim
221.8Dim
231.8Dim
241.8Dim
251.7Dim
261.7Dim
271.6Dim
281.6Dim
291.6Dim
301.5Dim
Planning a trip in September

Is September a good time to visit Stjørdalshalsen?

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

3.2
Sightseeing
4th-best month of the year
0.1
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Stjørdalshalsen.

What to pack for Stjørdalshalsen in September

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

In September, Stjørdalshalsen sees daytime highs around 13°C and nights near 7°C. Pack rain gear. Worth having: a warm layer. About 16 days see rain.

rain geara warm layer

Sea temperature near Stjørdalshalsen in September

The nearest coast averages about 13°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 69 km away) is warmest in August at about 14°C and coldest in March near 5°C.

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

5°10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan6Bracing
Feb6Bracing
Mar5Bracing
Apr6Bracing
May8Bracing
Jun11Bracing
Jul13Bracing
Aug14Bracing
Sep13Bracing
Oct11Bracing
Nov9Bracing
Dec7Bracing

UV index in Stjørdalshalsen in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Stjørdalshalsen peaks around July 13 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 4 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 13UV 4Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb0Low
Mar1Low
Apr2Moderate
May4Moderate
Jun4Moderate
Jul5Moderate
Aug4Moderate
Sep2Low
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Stjørdalshalsen?

Stjørdalshalsen sits at 63.5°N, 10.9°E, 15 m above sea level, in Norway. The nearest listed city is Trondheim, 27 km away.

ÖstersundMoldeLillehammerAlesund

Topography around Stjørdalshalsen

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

Within 3 km, the terrain around Stjørdalshalsen has only modest variations in elevation — a maximum elevation change of 242 m around an average of 32 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 587 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,711 m.

The land around Stjørdalshalsen is covered by trees (31%) and cropland (21%) within 3 km, trees (53%) and water (22%) within 16 km, and grassland (42%) and trees (37%) within 80 km.

3 km
242 m
16 km
587 m
80 km
1,711 m
treesgrasslandcroplandartificial surfacesbare terrainwatermoss and lichen
September weather nearby: Trondheim 27 km · Levanger 36 km · Åre 107 km · Kristiansund 165 km · Östersund 188 km · Molde 206 km · Lillehammer 263 km · Alesund 265 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 Stjørdalshalsen (63.4681°, 10.9262°, elevation 15 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).