Vik weather in September

In September, Vik sees average daytime highs of 8°C and overnight lows near 5°C, with 273 mm of precipitation across 20.4 wet days and about 12.7 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 9°C in the first days to 7°C by the end. The sky is clear or mostly clear about 9% 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 Vik's 12th-clearest and 8th-windiest month. For the whole year in context, see Vik's year-round climate.

Daytime high: 8°; 3rd warmest
Overnight low: 5°; 9th coldest
Precipitation: 273 mm; 20.4 wet days
Daylight: 12 h 36 min; 6:52 AM – 7:29 PM
Cloud cover: 80%; 12th clearest
Wind: 19 km/h; 8th windiest
Solar energy: 2.25 kWh/m²
Travel score: 0.8; out of 10

Vik is human settlement in Iceland.

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

← August Vik year-round climate October →Best places to visit in September

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 9°C in the first days to 7°C by the end.

A typical September day in Vik reaches about 8°C in the afternoon and slips back to 5°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 9°C. Set against its neighbours, September runs about 2°C cooler than August and about 3°C warmer than October.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	9	9	9	8	8	8	8	8	8	8	8	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7	7	6
Avg low (°C)	7	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5	5	5	4	4	4	4	4	4	4

	Avg high (°C)	Avg low (°C)
1	9	7
2	9	6
3	9	6
4	8	6
5	8	6
6	8	6
7	8	6
8	8	6
9	8	6
10	8	6
11	8	6
12	8	6
13	8	6
14	8	5
15	8	5
16	8	5
17	8	5
18	7	5
19	7	5
20	7	5
21	7	5
22	7	5
23	7	5
24	7	4
25	7	4
26	7	4
27	7	4
28	7	4
29	7	4
30	6	4

How September really feels in Vik

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 3 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Vik weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	2° / -1°	289	22	19.9	5.2	0.0
Feb	2° / -1°	278	20.1	18	8.1	0.0
Mar	2° / -1°	263	21.2	19.3	11.2	0.0
Apr	3° / 1°	201	18.9	15	14.5	0.0
May	5° / 3°	143	16.7	8.8	17.7	0.1
Jun	8° / 6°	124	14.8	1.9	19.8	1.0
Jul	9° / 7°	138	16.8	0.1	18.9	1.5
Aug	9° / 7°	179	16.7	0.1	15.9	1.6
Sep	8° / 5°	273	20.4	4	12.7	0.8
Oct	5° / 3°	285	20.1	10.7	9.4	0.1
Nov	3° / 0°	270	19.4	15.4	6.3	0.0
Dec	2° / -1°	306	21.9	18.9	4.2	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 9% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 80%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	19	19	19	18	18	18	18	18	18	19	20	20	20	20	20	20	20	20	20	20	20	20	21	21	22	22	22	22	22	22
Cloudier (%)	81	81	81	82	82	82	82	82	82	81	80	80	80	80	80	80	80	80	80	80	80	80	79	79	78	78	78	78	78	78

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	19	81
11	20	80
12	20	80
13	20	80
14	20	80
15	20	80
16	20	80
17	20	80
18	20	80
19	20	80
20	20	80
21	20	80
22	20	80
23	21	79
24	21	79
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

Chance of precipitation in September

Any precipitationSnow

Vik gets around 273 mm of rain and snow over 20.4 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 68% and peaks near 69% on the wettest days, and about 4 days bring snow.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	64	65	65	66	67	67	67	68	68	68	67	67	67	68	68	68	68	68	68	68	68	68	68	68	69	69	69	69	69	69
Snow chance (%)	3	3	3	4	4	5	6	6	7	8	9	10	11	12	13	14	15	16	17	18	18	19	20	21	21	22	23	23	24	25

	Rain chance (%)	Snow chance (%)
1	64	3
2	65	3
3	65	3
4	66	4
5	67	4
6	67	5
7	67	6
8	68	6
9	68	7
10	68	8
11	67	9
12	67	10
13	67	11
14	68	12
15	68	13
16	68	14
17	68	15
18	68	16
19	68	17
20	68	18
21	68	18
22	68	19
23	68	20
24	68	21
25	69	21
26	69	22
27	69	23
28	69	23
29	69	24
30	69	25

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

Wind in September

Winds average 19 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	17	17	17	17	17	18	18	18	18	18	18	18	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

	Wind speed (km/h)	Feels
1	17	light breeze
2	17	light breeze
3	17	light breeze
4	17	light breeze
5	17	light breeze
6	18	light breeze
7	18	light breeze
8	18	light breeze
9	18	light breeze
10	18	light breeze
11	18	light breeze
12	18	light breeze
13	19	light breeze
14	19	light breeze
15	19	light breeze
16	19	light breeze
17	19	light breeze
18	19	light breeze
19	19	light breeze
20	19	light breeze
21	19	light breeze
22	19	light breeze
23	19	light breeze
24	19	light breeze
25	19	light breeze
26	19	light breeze
27	19	light breeze
28	19	light breeze
29	19	light breeze
30	19	light breeze

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 6:09 AM to 7:32 AM, and sunset from 8:23 PM to 6:39 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	14.2	14.1	14.0	13.9	13.8	13.7	13.6	13.5	13.4	13.3	13.2	13.0	12.9	12.8	12.7	12.6	12.5	12.4	12.3	12.2	12.1	12.0	11.9	11.8	11.7	11.5	11.4	11.3	11.2	11.1
Sunrise (AM)	6:09	6:12	6:15	6:17	6:20	6:23	6:26	6:29	6:32	6:35	6:38	6:40	6:43	6:46	6:49	6:52	6:55	6:58	7:00	7:03	7:06	7:09	7:12	7:15	7:18	7:20	7:23	7:26	7:29	7:32
Sunset (PM)	8:23	8:19	8:16	8:12	8:08	8:05	8:01	7:58	7:54	7:50	7:47	7:43	7:40	7:36	7:33	7:29	7:25	7:22	7:18	7:15	7:11	7:07	7:04	7:00	6:57	6:53	6:49	6:46	6:42	6:39

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.2	6:09	8:23
2	14.1	6:12	8:19
3	14.0	6:15	8:16
4	13.9	6:17	8:12
5	13.8	6:20	8:08
6	13.7	6:23	8:05
7	13.6	6:26	8:01
8	13.5	6:29	7:58
9	13.4	6:32	7:54
10	13.3	6:35	7:50
11	13.2	6:38	7:47
12	13.0	6:40	7:43
13	12.9	6:43	7:40
14	12.8	6:46	7:36
15	12.7	6:49	7:33
16	12.6	6:52	7:29
17	12.5	6:55	7:25
18	12.4	6:58	7:22
19	12.3	7:00	7:18
20	12.2	7:03	7:15
21	12.1	7:06	7:11
22	12.0	7:09	7:07
23	11.9	7:12	7:04
24	11.8	7:15	7:00
25	11.7	7:18	6:57
26	11.5	7:20	6:53
27	11.4	7:23	6:49
28	11.3	7:26	6:46
29	11.2	7:29	6:42
30	11.1	7:32	6:39

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.25 kWh/m².

For context, solar energy here swings from a low near 0.07 kWh/m² to a high of 5.3 kWh/m² in June across the year — September's 2.25 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	3.0	2.9	2.9	2.8	2.8	2.7	2.7	2.6	2.6	2.5	2.5	2.4	2.4	2.3	2.3	2.2	2.2	2.1	2.1	2.0	2.0	1.9	1.9	1.8	1.8	1.8	1.7	1.7	1.6	1.6
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	3.0	Moderate
2	2.9	Moderate
3	2.9	Moderate
4	2.8	Moderate
5	2.8	Moderate
6	2.7	Moderate
7	2.7	Moderate
8	2.6	Moderate
9	2.6	Moderate
10	2.5	Moderate
11	2.5	Moderate
12	2.4	Moderate
13	2.4	Moderate
14	2.3	Moderate
15	2.3	Moderate
16	2.2	Moderate
17	2.2	Moderate
18	2.1	Moderate
19	2.1	Moderate
20	2.0	Moderate
21	2.0	Dim
22	1.9	Dim
23	1.9	Dim
24	1.8	Dim
25	1.8	Dim
26	1.8	Dim
27	1.7	Dim
28	1.7	Dim
29	1.6	Dim
30	1.6	Dim

Planning a trip in September

Is September a good time to visit Vik?

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

0.8

Sightseeing

4th-best month of the year

—

Beach & pool

never really warm enough

September is a weaker month for outdoor sightseeing in Vik.

What to pack for Vik in September

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

In September, Vik sees daytime highs around 8°C and nights near 5°C. Pack a warm layer and rain gear. Worth having: a heavy coat. About 20 days see rain.

a warm layerrain geara heavy coat

Sea temperature near Vik in September

The nearest coast averages about 10°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 12°C and coldest in February near 7°C.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	8	7	7	8	8	10	11	12	10	9	8	8
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	8	Bracing
Feb	7	Bracing
Mar	7	Bracing
Apr	8	Bracing
May	8	Bracing
Jun	10	Bracing
Jul	11	Bracing
Aug	12	Bracing
Sep	10	Bracing
Oct	9	Bracing
Nov	8	Bracing
Dec	8	Bracing

UV index in Vik 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 Vik peaks around June 19 at about 5 (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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	0	1	3	4	5	5	3	2	1	0	0
Level	Low	Low	Low	Moderate	Moderate	Moderate	Moderate	Moderate	Low	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	0	Low
Mar	1	Low
Apr	3	Moderate
May	4	Moderate
Jun	5	Moderate
Jul	5	Moderate
Aug	3	Moderate
Sep	2	Low
Oct	1	Low
Nov	0	Low
Dec	0	Low

Location & terrain

Where is Vik?

Vik sits at 63.4°N, 19.0°W, 0 m above sea level, in Iceland. The nearest listed city is Hafnarfjörður, 161 km away.

Topography around Vik

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

Within 3 km, the terrain around Vik has significant variations in elevation — a maximum elevation change of 492 m around an average of 96 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,219 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,623 m.

The land around Vik is covered by grassland (45%) and water (31%) within 3 km, water (47%) and grassland (28%) within 16 km, and water (42%) and grassland (23%) within 80 km.

3 km

492 m

grassland 45%

16 km

1,219 m

water 47%

80 km

1,623 m

water 42%

treesgrasslandcroplandartificial surfacesbare terrainsnow and icewaterwetlandmoss and lichen

← August Vik year-round climate October →Best places to visit in September

September weather nearby: Hafnarfjörður 161 km · Kópavogur 162 km · Reykjavik 163 km · Reykjanesbær 186 km · Keflavik 187 km · Akureyri 256 km · Tórshavn 642 km · Isle of Lewis 893 km

Iceland travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 118% of US; price level, 2025
GDP per capita: $98,323; 2025
Happiness: 7.5 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.3; per 100k, 2023
Road deaths: 2; per 100k/yr, 2019
Income group: High; World Bank
Religion

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 Vik (63.4194°, -19.0097°, elevation 0 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).

	Avg high (°C)	Avg low (°C)
1	9	7
2	9	6
3	9	6
4	8	6
5	8	6
6	8	6
7	8	6
8	8	6
9	8	6
10	8	6
11	8	6
12	8	6
13	8	6
14	8	5
15	8	5
16	8	5
17	8	5
18	7	5
19	7	5
20	7	5
21	7	5
22	7	5
23	7	5
24	7	4
25	7	4
26	7	4
27	7	4
28	7	4
29	7	4
30	6	4

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	19	81
11	20	80
12	20	80
13	20	80
14	20	80
15	20	80
16	20	80
17	20	80
18	20	80
19	20	80
20	20	80
21	20	80
22	20	80
23	21	79
24	21	79
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

	Rain chance (%)	Snow chance (%)
1	64	3
2	65	3
3	65	3
4	66	4
5	67	4
6	67	5
7	67	6
8	68	6
9	68	7
10	68	8
11	67	9
12	67	10
13	67	11
14	68	12
15	68	13
16	68	14
17	68	15
18	68	16
19	68	17
20	68	18
21	68	18
22	68	19
23	68	20
24	68	21
25	69	21
26	69	22
27	69	23
28	69	23
29	69	24
30	69	25

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	9	7
2	9	6
3	9	6
4	8	6
5	8	6
6	8	6
7	8	6
8	8	6
9	8	6
10	8	6
11	8	6
12	8	6
13	8	6
14	8	5
15	8	5
16	8	5
17	8	5
18	7	5
19	7	5
20	7	5
21	7	5
22	7	5
23	7	5
24	7	4
25	7	4
26	7	4
27	7	4
28	7	4
29	7	4
30	6	4

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	19	81
11	20	80
12	20	80
13	20	80
14	20	80
15	20	80
16	20	80
17	20	80
18	20	80
19	20	80
20	20	80
21	20	80
22	20	80
23	21	79
24	21	79
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

	Rain chance (%)	Snow chance (%)
1	64	3
2	65	3
3	65	3
4	66	4
5	67	4
6	67	5
7	67	6
8	68	6
9	68	7
10	68	8
11	67	9
12	67	10
13	67	11
14	68	12
15	68	13
16	68	14
17	68	15
18	68	16
19	68	17
20	68	18
21	68	18
22	68	19
23	68	20
24	68	21
25	69	21
26	69	22
27	69	23
28	69	23
29	69	24
30	69	25

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100

	Avg high (°C)	Avg low (°C)
1	9	7
2	9	6
3	9	6
4	8	6
5	8	6
6	8	6
7	8	6
8	8	6
9	8	6
10	8	6
11	8	6
12	8	6
13	8	6
14	8	5
15	8	5
16	8	5
17	8	5
18	7	5
19	7	5
20	7	5
21	7	5
22	7	5
23	7	5
24	7	4
25	7	4
26	7	4
27	7	4
28	7	4
29	7	4
30	6	4

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	18	82
5	18	82
6	18	82
7	18	82
8	18	82
9	18	82
10	19	81
11	20	80
12	20	80
13	20	80
14	20	80
15	20	80
16	20	80
17	20	80
18	20	80
19	20	80
20	20	80
21	20	80
22	20	80
23	21	79
24	21	79
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

	Rain chance (%)	Snow chance (%)
1	64	3
2	65	3
3	65	3
4	66	4
5	67	4
6	67	5
7	67	6
8	68	6
9	68	7
10	68	8
11	67	9
12	67	10
13	67	11
14	68	12
15	68	13
16	68	14
17	68	15
18	68	16
19	68	17
20	68	18
21	68	18
22	68	19
23	68	20
24	68	21
25	69	21
26	69	22
27	69	23
28	69	23
29	69	24
30	69	25

	Dry (%)
1	100
2	100
3	100
4	100
5	100
6	100
7	100
8	100
9	100
10	100
11	100
12	100
13	100
14	100
15	100
16	100
17	100
18	100
19	100
20	100
21	100
22	100
23	100
24	100
25	100
26	100
27	100
28	100
29	100
30	100