Lillestrøm weather in August

In August, Lillestrøm sees average daytime highs of 20°C and overnight lows near 11°C, with 104 mm of rain across 13.6 wet days and about 15.4 hours of daylight. It is the 2nd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 18°C by the end. The sky is clear or mostly clear about 18% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 36 min at the start of August to 14 hours by month's end. Set against the rest of the year, August is Lillestrøm's 7th-clearest and 11th-windiest month. For the whole year in context, see Lillestrøm's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
11°
11th coldest
Rainfall
104 mm
13.6 wet days
Daylight
15 h 24 min
4:39 AM – 8:01 PM
Cloud cover
67%
7th clearest
Wind
9 km/h
11th windiest
Solar energy
3.94 kWh/m²
Travel score
5.7
out of 10

Lillestrøm is town in Lillestrøm Municipality, Norway.

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 18°C by the end.

A typical August day in Lillestrøm reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 24°C. Set against its neighbours, August runs about 1°C cooler than July and about 5°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52112
62112
72112
82112
92112
102112
112012
122012
132012
142011
152011
162011
172011
182011
192011
201911
211911
221911
231910
241910
251910
261910
271810
281810
291810
301810
31189

How August really feels in Lillestrøm

Once humidity and wind are folded in, August 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

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

Lillestrøm weather by month

How August compares with the rest of the year at a glance. August is the 2nd-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° / -6°6510.59.86.40.0
Feb-0° / -6°488.27.98.60.0
Mar / -4°4986.511.30.2
Apr10° / 539.12.914.12.2
May15° / 7411.60.816.74.4
Jun19° / 9111.9018.35.6
Jul21° / 12°9412.6017.76.0
Aug20° / 11°10413.6015.45.7
Sep15° / 8110.4012.64.4
Oct / 8411.41.39.81.6
Nov / -1°8411.65.67.20.0
Dec-0° / -5°6610.87.75.70.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14357
24357
34258
44258
54159
64159
74159
84159
94159
104060
114060
124060
134159
144159
154159
164159
174060
184159
194159
204159
214060
223961
233961
243961
253961
264060
273862
283862
293961
303862
313961

Chance of precipitation in August

Any precipitation

Lillestrøm gets around 104 mm of rain over 13.6 wet days in August, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
142
243
343
444
544
645
745
845
945
1044
1144
1244
1344
1443
1543
1643
1743
1843
1943
2043
2143
2242
2342
2442
2541
2641
2740
2839
2939
3038
3138

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the dry band about 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
161336
262326
362326
463316
563316
665305
765305
866295
967285
1068284
1169274
1270264
1370264
1471254
1573243
1673243
1774233
1874233
1975223
2075223
2176213
2278202
2379192
2480182
2581172
2682162
2783152
2884142
2985132
3086122
3187112

Wind in August

Winds average 9 km/h in August.

Across August, 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.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 36 min at the start of August to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 156 minutes over August. Sunrise moves from 4:03 AM to 5:15 AM, and sunset from 8:41 PM to 7:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.64:038:41
216.54:058:38
316.54:088:36
416.44:108:33
516.34:128:31
616.24:158:28
716.14:178:26
816.14:208:23
916.04:228:20
1015.94:248:18
1115.84:278:15
1215.74:298:12
1315.64:328:09
1415.54:348:07
1515.54:368:04
1615.44:398:01
1715.34:417:58
1815.24:447:55
1915.14:467:52
2015.04:497:49
2114.94:517:46
2214.84:547:43
2314.74:567:41
2414.74:587:38
2514.65:017:35
2614.55:037:32
2714.45:067:28
2814.35:087:25
2914.25:117:22
3014.15:137:19
3114.05:157:16

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.94 kWh/m².

For context, solar energy here swings from a low near 0.19 kWh/m² to a high of 5.56 kWh/m² in June across the year — August's 3.94 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.5Bright
34.5Bright
44.5Bright
54.4Bright
64.4Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.0Bright
154.0Moderate
164.0Moderate
173.9Moderate
183.9Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.7Moderate
233.7Moderate
243.6Moderate
253.6Moderate
263.5Moderate
273.5Moderate
283.4Moderate
293.4Moderate
303.3Moderate
313.3Moderate
Planning a trip in August

Is August a good time to visit Lillestrøm?

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

5.7
Sightseeing
2nd-best month of the year
2.8
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Lillestrøm for sightseeing.

What to pack for Lillestrøm in August

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

In August, Lillestrøm sees daytime highs around 20°C and nights near 11°C. Worth packing: rain gear. About 14 days see rain.

rain gear

Sea temperature near Lillestrøm in August

The nearest coast averages about 18°C in August — 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 18°C and coldest in February near 3°C.

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

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr6Bracing
May11Bracing
Jun15Cool
Jul18Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec6Bracing

UV index in Lillestrøm in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lillestrøm peaks around June 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJun 23UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun5Moderate
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Lillestrøm?

Lillestrøm sits at 60.0°N, 11.0°E, 116 m above sea level, in Norway. The nearest listed city is Oslo, 18 km away.

Topography around Lillestrøm

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

Within 3 km, the terrain around Lillestrøm has only modest variations in elevation — a maximum elevation change of 214 m around an average of 135 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 444 m; within 80 km, large variations in elevation — a maximum elevation change of 1,025 m.

The land around Lillestrøm is covered by trees (36%), artificial surfaces (29%) and cropland (23%) within 3 km, trees (61%) within 16 km, and trees (75%) within 80 km.

3 km
214 m
16 km
444 m
80 km
1,025 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Oslo 18 km · Asker 37 km · Drammen 53 km · Moss 62 km · Horten 68 km · Sarpsborg 75 km · Fredrikstad 82 km · Kongsberg 84 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 Lillestrøm (59.956°, 11.0492°, elevation 116 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).