Hamar weather in September

In September, Hamar sees average daytime highs of 14°C and overnight lows near 7°C, with 73 mm of precipitation across 10.5 wet days and about 12.6 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 16°C in the first days to 12°C by the end. The sky is clear or mostly clear about 19% of the time in September, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of September to 11 h 12 min by month's end. Set against the rest of the year, September is Hamar's 8th-clearest and 1st-windiest month. For the whole year in context, see Hamar's year-round climate.

Daytime high
14°
5th warmest
Overnight low
9th coldest
Precipitation
73 mm
10.5 wet days
Daylight
12 h 36 min
5:53 AM – 6:27 PM
Cloud cover
69%
8th clearest
Wind
8 km/h
1st windiest
Solar energy
2.35 kWh/m²
Travel score
3.9
out of 10

Hamar is city in Hamar Municipality, Norway.

Air quality
Good
PM2.5 7.1 µg/m³ · 2019
Density
84/km²
people per km²
Founded
1050

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 16°C in the first days to 12°C by the end.

A typical September day in Hamar reaches about 14°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 10°C and 18°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

10°15°20°151015202530
Avg high (°C)Avg low (°C)
1169
2169
3168
4168
5168
6168
7158
8158
9158
10158
11158
12158
13157
14147
15147
16147
17147
18147
19137
20136
21136
22136
23136
24136
25126
26126
27125
28125
29115
30115

How September really feels in Hamar

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.

Hamar weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-3° / -9°559.910.56.20.0
Feb-2° / -9°377.68.88.50.0
Mar / -5°4288.111.30.0
Apr / -1°478.64.514.21.5
May14° / 7311.41.416.93.9
Jun18° / 8111.9018.65.3
Jul20° / 11°9113.3017.95.7
Aug19° / 10°10113.7015.55.4
Sep14° / 7310.50.112.63.9
Oct / 75112.29.71.1
Nov / -2°7111.27.470.0
Dec-2° / -6°5510.195.40.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13466
23466
33466
43466
53466
63367
73466
83565
93565
103466
113466
123565
133466
143466
153367
163367
173466
183466
193466
203466
213466
223565
233466
243466
253367
263367
273367
283367
293268
303268

Chance of precipitation in September

Any precipitation

Hamar gets around 73 mm of rain and snow over 10.5 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 36% and peaks near 38% on the wettest days, and about 0 day brings snow.

0%10%20%30%40%50%151015202530
Rain chance (%)
135
235
335
435
535
635
735
835
935
1035
1135
1235
1335
1435
1535
1635
1735
1835
1935
2035
2135
2235
2336
2436
2536
2637
2737
2837
2938
3038

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 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19361
29361
39550
49640
59640
69730
79730
89730
99730
109820
119820
129820
139820
149820
159910
169910
179910
189910
199910
209910
219910
229910
239910
2410000
2510000
2610000
2710000
2810000
2910000
3010000

Wind in September

Winds average 8 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

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

Days shrink by about 168 minutes over September. Sunrise moves from 5:16 AM to 6:29 AM, and sunset from 7:15 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:167:15
213.95:187:12
313.85:217:09
413.75:237:06
513.65:267:02
613.55:286:59
713.45:316:56
813.35:336:53
913.25:366:49
1013.15:386:46
1113.05:416:43
1212.95:436:40
1312.85:466:36
1412.75:486:33
1512.65:516:30
1612.65:536:27
1712.55:566:23
1812.45:586:20
1912.36:016:17
2012.26:046:14
2112.16:066:10
2212.06:096:07
2311.96:116:04
2411.86:146:01
2511.76:165:57
2611.66:195:54
2711.56:215:51
2811.46:245:48
2911.36:265:44
3011.26:295:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.35 kWh/m².

For context, solar energy here swings from a low near 0.16 kWh/m² to a high of 5.41 kWh/m² in June across the year — September's 2.35 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.0Moderate
23.0Moderate
32.9Moderate
42.9Moderate
52.8Moderate
62.8Moderate
72.7Moderate
82.7Moderate
92.6Moderate
102.6Moderate
112.5Moderate
122.5Moderate
132.4Moderate
142.4Moderate
152.3Moderate
162.3Moderate
172.2Moderate
182.2Moderate
192.1Moderate
202.1Moderate
212.1Moderate
222.0Moderate
232.0Dim
241.9Dim
251.9Dim
261.8Dim
271.8Dim
281.7Dim
291.7Dim
301.6Dim
Planning a trip in September

Is September a good time to visit Hamar?

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

3.9
Sightseeing
4th-best month of the year
0.2
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Hamar.

What to pack for Hamar in September

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

In September, Hamar sees daytime highs around 14°C and nights near 7°C. Worth packing: a warm layer and rain gear. About 11 days see rain.

a warm layerrain gear

UV index in Hamar 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 Hamar peaks around June 20 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 20UV 5Dec 19UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul5Moderate
Aug4Moderate
Sep2Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Hamar?

Hamar sits at 60.8°N, 11.1°E, 137 m above sea level, in Norway. The nearest listed city is Gjøvik, 20 km away.

Moss

Topography around Hamar

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

Within 3 km, the terrain around Hamar has only modest variations in elevation — a maximum elevation change of 168 m around an average of 143 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 580 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,336 m.

The land around Hamar is covered by water (42%), trees (21%) and artificial surfaces (21%) within 3 km, trees (37%), cropland (28%) and water (22%) within 16 km, and trees (76%) within 80 km.

3 km
168 m
16 km
580 m
80 km
1,336 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Gjøvik 20 km · Lillehammer 48 km · Lillestrøm 93 km · Oslo 100 km · Asker 112 km · Drammen 126 km · Kongsberg 148 km · Moss 153 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 Hamar (60.7945°, 11.068°, elevation 137 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).