Rovaniemi weather in September

In September, Rovaniemi sees average daytime highs of 11°C and overnight lows near 4°C, with 55 mm of precipitation across 10.2 wet days and about 12.8 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 14°C in the first days to 8°C by the end. The sky is clear or mostly clear about 12% of the time in September, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of September to 11 hours by month's end. Set against the rest of the year, September is Rovaniemi's 7th-clearest and 6th-windiest month. For the whole year in context, see Rovaniemi's year-round climate.

Daytime high: 11°; 4th warmest
Overnight low: 4°; 9th coldest
Precipitation: 55 mm; 10.2 wet days
Daylight: 12 h 42 min; 5:50 AM – 6:33 PM
Cloud cover: 77%; 7th clearest
Wind: 11 km/h; 6th windiest
Solar energy: 1.73 kWh/m²
Travel score: 2.7; out of 10

← August Rovaniemi 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 14°C in the first days to 8°C by the end.

A typical September day in Rovaniemi reaches about 11°C in the afternoon and slips back to 4°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 15°C. Set against its neighbours, September runs about 6°C cooler than August and about 8°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)	15	14	14	14	14	14	13	13	13	13	12	12	12	12	11	11	11	11	10	10	10	10	9	9	9	9	8	8	8	8
Avg low (°C)	7	7	6	6	6	6	6	6	5	5	5	5	5	5	4	4	4	4	4	4	3	3	3	3	3	3	3	2	2	2

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

How September really feels in Rovaniemi

Once humidity and wind are folded in, September averages 0 days that feel above 32°C and 7 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.

Rovaniemi 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.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-8° / -14°	36	9.3	10.2	3.5	0.0
Feb	-7° / -14°	29	8	10.1	7.4	0.0
Mar	-2° / -10°	32	8	9.4	11.1	0.0
Apr	4° / -4°	33	7.8	5.9	14.9	0.2
May	11° / 2°	49	10	2.1	18.8	2.5
Jun	17° / 8°	70	12.1	0.1	22.5	4.8
Jul	20° / 11°	80	12.5	0	20.7	5.7
Aug	17° / 9°	69	11.5	0	16.6	5.0
Sep	11° / 4°	55	10.2	0.4	12.8	2.7
Oct	3° / -2°	51	9.7	4.1	9	0.2
Nov	-2° / -7°	47	11	9.4	5	0.0
Dec	-5° / -11°	42	10.4	11.7	1.4	0.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 77%.

	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 (%)	25	25	25	24	24	24	25	25	25	25	24	24	24	25	25	25	24	24	24	24	24	23	22	22	21	22	22	21	21	21
Cloudier (%)	75	75	75	76	76	76	75	75	75	75	76	76	76	75	75	75	76	76	76	76	76	77	78	78	79	78	78	79	79	79

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	24	76
5	24	76
6	24	76
7	25	75
8	25	75
9	25	75
10	25	75
11	24	76
12	24	76
13	24	76
14	25	75
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	24	76
21	24	76
22	23	77
23	22	78
24	22	78
25	21	79
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79

Chance of precipitation in September

Any precipitationSnow

Rovaniemi gets around 55 mm of rain and snow over 10.2 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 34% and peaks near 35% on the wettest days, and about 0 day brings 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 (%)	33	33	33	33	33	33	33	33	33	33	33	34	34	34	34	34	35	35	35	35	35	35	35	35	34	34	34	34	34	34
Snow chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	2	2	2	3	3	3	3	4	4	4

	Rain chance (%)	Snow chance (%)
1	33	0
2	33	0
3	33	0
4	33	0
5	33	0
6	33	0
7	33	0
8	33	0
9	33	0
10	33	0
11	33	0
12	34	0
13	34	0
14	34	0
15	34	1
16	34	1
17	35	1
18	35	1
19	35	1
20	35	2
21	35	2
22	35	2
23	35	2
24	35	3
25	34	3
26	34	3
27	34	3
28	34	4
29	34	4
30	34	4

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.

	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 (%)	95	96	96	97	97	97	98	98	99	99	99	99	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100
Comfortable (%)	5	4	4	3	3	3	2	2	1	1	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

	Dry (%)	Comfortable (%)
1	95	5
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	99	1
10	99	1
11	99	1
12	99	1
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 11 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)	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11	11
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 14 h 36 min at the start of September to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 216 minutes over September. Sunrise moves from 5:00 AM to 6:37 AM, and sunset from 7:34 PM to 5:36 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)	14.6	14.5	14.3	14.2	14.1	14.0	13.8	13.7	13.6	13.5	13.3	13.2	13.1	13.0	12.8	12.7	12.6	12.5	12.3	12.2	12.1	12.0	11.8	11.7	11.6	11.5	11.4	11.2	11.1	11.0
Sunrise (AM)	5:00	5:03	5:06	5:10	5:13	5:17	5:20	5:23	5:27	5:30	5:33	5:37	5:40	5:44	5:47	5:50	5:54	5:57	6:00	6:04	6:07	6:10	6:14	6:17	6:20	6:24	6:27	6:30	6:34	6:37
Sunset (PM)	7:34	7:30	7:26	7:22	7:18	7:14	7:10	7:06	7:02	6:57	6:53	6:49	6:45	6:41	6:37	6:33	6:29	6:25	6:21	6:17	6:12	6:08	6:04	6:00	5:56	5:52	5:48	5:44	5:40	5:36

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.6	5:00	7:34
2	14.5	5:03	7:30
3	14.3	5:06	7:26
4	14.2	5:10	7:22
5	14.1	5:13	7:18
6	14.0	5:17	7:14
7	13.8	5:20	7:10
8	13.7	5:23	7:06
9	13.6	5:27	7:02
10	13.5	5:30	6:57
11	13.3	5:33	6:53
12	13.2	5:37	6:49
13	13.1	5:40	6:45
14	13.0	5:44	6:41
15	12.8	5:47	6:37
16	12.7	5:50	6:33
17	12.6	5:54	6:29
18	12.5	5:57	6:25
19	12.3	6:00	6:21
20	12.2	6:04	6:17
21	12.1	6:07	6:12
22	12.0	6:10	6:08
23	11.8	6:14	6:04
24	11.7	6:17	6:00
25	11.6	6:20	5:56
26	11.5	6:24	5:52
27	11.4	6:27	5:48
28	11.2	6:30	5:44
29	11.1	6:34	5:40
30	11.0	6:37	5:36

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 1.73 kWh/m².

For context, solar energy here swings from a low near 0 kWh/m² to a high of 5.1 kWh/m² in June across the year — September's 1.73 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)	2.4	2.4	2.3	2.3	2.3	2.2	2.1	2.1	2.0	2.0	1.9	1.9	1.9	1.8	1.8	1.7	1.7	1.6	1.6	1.5	1.5	1.4	1.4	1.3	1.3	1.3	1.2	1.2	1.1	1.1
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim	Dim

	Solar energy (kWh/m²)	Level
1	2.4	Moderate
2	2.4	Moderate
3	2.3	Moderate
4	2.3	Moderate
5	2.3	Moderate
6	2.2	Moderate
7	2.1	Moderate
8	2.1	Moderate
9	2.0	Moderate
10	2.0	Moderate
11	1.9	Dim
12	1.9	Dim
13	1.9	Dim
14	1.8	Dim
15	1.8	Dim
16	1.7	Dim
17	1.7	Dim
18	1.6	Dim
19	1.6	Dim
20	1.5	Dim
21	1.5	Dim
22	1.4	Dim
23	1.4	Dim
24	1.3	Dim
25	1.3	Dim
26	1.3	Dim
27	1.2	Dim
28	1.2	Dim
29	1.1	Dim
30	1.1	Dim

Planning a trip in September

Is September a good time to visit Rovaniemi?

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

2.7

Sightseeing

4th-best month of the year

0.0

Beach & pool

4th-best month of the year

September is a weaker month for outdoor sightseeing in Rovaniemi.

What to pack for Rovaniemi in September

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

In September, Rovaniemi sees daytime highs around 11°C and nights near 4°C. Pack a warm layer. Worth having: rain gear. About 10 days see rain.

a warm layerrain gear

UV index in Rovaniemi 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 Rovaniemi 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.

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

Location & terrain

Where is Rovaniemi?

Rovaniemi sits at 66.5°N, 25.7°E, 90 m above sea level, in Finland. The nearest listed city is Kemi, 99 km away.

Topography around Rovaniemi

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

Within 3 km, the terrain around Rovaniemi has only modest variations in elevation — a maximum elevation change of 90 m around an average of 93 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 206 m; within 80 km, significant variations in elevation — a maximum elevation change of 357 m.

The land around Rovaniemi is covered by trees (57%) within 3 km, trees (80%) within 16 km, and trees (82%) within 80 km.

3 km

90 m

trees 57%

16 km

206 m

trees 80%

80 km

357 m

trees 82%

treesgrasslandartificial surfacesbare terrainwaterwetland

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

September weather nearby: Kemi 99 km · Tornio 100 km · Haukipudas 148 km · Levi 150 km · Oulu 166 km · Luleå 189 km · Boden 195 km · Raahe 209 km

Finland travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 85% of US; price level, 2025
GDP per capita: $56,149; 2025
Happiness: 7.8 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1; per 100k, 2023
Road deaths: 3.9; per 100k/yr, 2019
Income group: High; World Bank
English: Very high; EF EPI 603
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 Rovaniemi (66.499°, 25.6887°, elevation 90 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. 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	15	7
2	14	7
3	14	6
4	14	6
5	14	6
6	14	6
7	13	6
8	13	6
9	13	5
10	13	5
11	12	5
12	12	5
13	12	5
14	12	5
15	11	4
16	11	4
17	11	4
18	11	4
19	10	4
20	10	4
21	10	3
22	10	3
23	9	3
24	9	3
25	9	3
26	9	3
27	8	3
28	8	2
29	8	2
30	8	2

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	24	76
5	24	76
6	24	76
7	25	75
8	25	75
9	25	75
10	25	75
11	24	76
12	24	76
13	24	76
14	25	75
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	24	76
21	24	76
22	23	77
23	22	78
24	22	78
25	21	79
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79

	Rain chance (%)	Snow chance (%)
1	33	0
2	33	0
3	33	0
4	33	0
5	33	0
6	33	0
7	33	0
8	33	0
9	33	0
10	33	0
11	33	0
12	34	0
13	34	0
14	34	0
15	34	1
16	34	1
17	35	1
18	35	1
19	35	1
20	35	2
21	35	2
22	35	2
23	35	2
24	35	3
25	34	3
26	34	3
27	34	3
28	34	4
29	34	4
30	34	4

	Dry (%)	Comfortable (%)
1	95	5
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	99	1
10	99	1
11	99	1
12	99	1
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

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

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	24	76
5	24	76
6	24	76
7	25	75
8	25	75
9	25	75
10	25	75
11	24	76
12	24	76
13	24	76
14	25	75
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	24	76
21	24	76
22	23	77
23	22	78
24	22	78
25	21	79
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79

	Rain chance (%)	Snow chance (%)
1	33	0
2	33	0
3	33	0
4	33	0
5	33	0
6	33	0
7	33	0
8	33	0
9	33	0
10	33	0
11	33	0
12	34	0
13	34	0
14	34	0
15	34	1
16	34	1
17	35	1
18	35	1
19	35	1
20	35	2
21	35	2
22	35	2
23	35	2
24	35	3
25	34	3
26	34	3
27	34	3
28	34	4
29	34	4
30	34	4

	Dry (%)	Comfortable (%)
1	95	5
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	99	1
10	99	1
11	99	1
12	99	1
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0

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

	Clearer (%)	Cloudier (%)
1	25	75
2	25	75
3	25	75
4	24	76
5	24	76
6	24	76
7	25	75
8	25	75
9	25	75
10	25	75
11	24	76
12	24	76
13	24	76
14	25	75
15	25	75
16	25	75
17	24	76
18	24	76
19	24	76
20	24	76
21	24	76
22	23	77
23	22	78
24	22	78
25	21	79
26	22	78
27	22	78
28	21	79
29	21	79
30	21	79

	Rain chance (%)	Snow chance (%)
1	33	0
2	33	0
3	33	0
4	33	0
5	33	0
6	33	0
7	33	0
8	33	0
9	33	0
10	33	0
11	33	0
12	34	0
13	34	0
14	34	0
15	34	1
16	34	1
17	35	1
18	35	1
19	35	1
20	35	2
21	35	2
22	35	2
23	35	2
24	35	3
25	34	3
26	34	3
27	34	3
28	34	4
29	34	4
30	34	4

	Dry (%)	Comfortable (%)
1	95	5
2	96	4
3	96	4
4	97	3
5	97	3
6	97	3
7	98	2
8	98	2
9	99	1
10	99	1
11	99	1
12	99	1
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	100	0
30	100	0