Kristiansand weather in September

In September, Kristiansand sees average daytime highs of 15°C and overnight lows near 10°C, with 127 mm of rain across 13.4 wet days and about 12.5 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 17°C in the first days to 13°C by the end. The sky is clear or mostly clear about 24% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 48 min at the start of September to 11 h 18 min by month's end. Set against the rest of the year, September is Kristiansand's 6th-clearest and 7th-windiest month. For the whole year in context, see Kristiansand's year-round climate.

Daytime high
15°
4th warmest
Overnight low
10°
9th coldest
Rainfall
127 mm
13.4 wet days
Daylight
12 h 30 min
6:07 AM – 6:37 PM
Cloud cover
66%
6th clearest
Wind
15 km/h
7th windiest
Solar energy
2.65 kWh/m²
Travel score
4.2
out of 10

Kristiansand is settlement in Kristiansand Municipality, Norway.

Air quality
Good
PM10 18.2 µg/m³ · 2019
Density
4,710/km²
people per km²
Founded
1641

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 17°C in the first days to 13°C by the end.

A typical September day in Kristiansand reaches about 15°C in the afternoon and slips back to 10°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 18°C. Set against its neighbours, September runs about 4°C cooler than August and about 5°C warmer than October.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
11711
21711
31711
41711
51711
61711
71610
81610
91610
101610
111610
121610
131610
141510
151510
161510
17159
18159
19159
20159
21159
22149
23149
24149
25149
26148
27148
28138
29138
30138

How September really feels in Kristiansand

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.

Kristiansand weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°13415.69.36.90.0
Feb / -2°96128.58.90.0
Mar / -0°8611.45.811.40.3
Apr10° / 6911.11.8142.0
May14° / 7710.80.216.44.1
Jun18° / 10°9211017.85.5
Jul20° / 13°9511017.26.1
Aug19° / 12°12413.1015.15.7
Sep15° / 10°12713.4012.54.2
Oct10° / 14115.20.49.92.2
Nov / 1311537.60.5
Dec / -0°12314.35.66.20.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14159
24159
34060
44060
54060
64060
74060
83961
93961
104060
114060
124159
134258
144258
154258
164258
174258
184258
194258
204258
214258
224159
234159
244159
253862
263862
273862
283763
293664
303664

Chance of precipitation in September

Any precipitation

Kristiansand gets around 127 mm of rain over 13.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 45% and peaks near 47% on the wettest days.

0%20%40%60%151015202530
Rain chance (%)
146
246
346
447
547
647
747
847
947
1047
1147
1247
1346
1446
1546
1645
1745
1844
1944
2043
2143
2243
2343
2443
2543
2644
2745
2845
2946
3046

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
181172
282162
384151
485141
585141
686131
786131
886131
987121
1087121
1187121
1288111
1388111
1489101
1590100
169190
179190
189280
199280
209370
219370
229460
239460
249550
259550
269640
279640
289640
299730
309730

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 48 min at the start of September to 11 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 150 minutes over September. Sunrise moves from 5:34 AM to 6:39 AM, and sunset from 7:21 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:347:21
213.75:367:18
313.65:397:16
413.55:417:13
513.45:437:10
613.45:457:07
713.35:477:04
813.25:507:01
913.15:526:58
1013.05:546:55
1112.95:566:52
1212.85:596:49
1312.86:016:46
1412.76:036:43
1512.66:056:40
1612.56:076:37
1712.46:106:34
1812.36:126:31
1912.26:146:28
2012.26:166:25
2112.16:196:22
2212.06:216:19
2311.96:236:17
2411.86:256:14
2511.76:276:11
2611.66:306:08
2711.56:326:05
2811.56:346:02
2911.46:365:59
3011.36:395:56

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.65 kWh/m².

For context, solar energy here swings from a low near 0.27 kWh/m² to a high of 6.07 kWh/m² in June across the year — September's 2.65 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.0Moderate
93.0Moderate
102.9Moderate
112.9Moderate
122.8Moderate
132.8Moderate
142.7Moderate
152.7Moderate
162.6Moderate
172.6Moderate
182.5Moderate
192.5Moderate
202.4Moderate
212.4Moderate
222.3Moderate
232.3Moderate
242.2Moderate
252.2Moderate
262.1Moderate
272.1Moderate
282.0Moderate
292.0Moderate
301.9Dim
Planning a trip in September

Is September a good time to visit Kristiansand?

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

4.2
Sightseeing
4th-best month of the year
0.4
Beach & pool
4th-best month of the year

September is a reasonable time to visit Kristiansand for sightseeing.

What to pack for Kristiansand in September

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

In September, Kristiansand sees daytime highs around 15°C and nights near 10°C. Pack rain gear. Worth having: a warm layer. About 13 days see rain.

rain geara warm layer

Sea temperature near Kristiansand in September

The nearest coast averages about 15°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 18°C and coldest in February near 4°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
Jan5Bracing
Feb4Bracing
Mar4Bracing
Apr6Bracing
May10Bracing
Jun14Bracing
Jul17Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec7Bracing

UV index in Kristiansand in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kristiansand peaks around July 24 at about 5 (moderate) — a little sun protection helps at midday. It bottoms out near December 20 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 24UV 5Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May5Moderate
Jun4Moderate
Jul5Moderate
Aug5Moderate
Sep3Moderate
Oct1Low
Nov1Low
Dec0Low
Location & terrain

Where is Kristiansand?

Kristiansand sits at 58.1°N, 8.0°E, 12 m above sea level, in Norway. The nearest listed city is Grimstad, 41 km away.

Topography around Kristiansand

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

Within 3 km, the terrain around Kristiansand has only modest variations in elevation — a maximum elevation change of 160 m around an average of 30 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 317 m; within 80 km, large variations in elevation — a maximum elevation change of 996 m.

The land around Kristiansand is covered by trees (37%), water (35%) and artificial surfaces (22%) within 3 km, trees (54%) and water (37%) within 16 km, and trees (50%) and water (40%) within 80 km.

3 km
160 m
16 km
317 m
80 km
996 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Grimstad 41 km · Arendal 57 km · Hjørring 140 km · Porsgrunn 146 km · Time 149 km · Skien 151 km · Sandnes 153 km · Larvik 155 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 Kristiansand (58.1467°, 7.9956°, elevation 12 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).