Asker weather in August

In August, Asker sees average daytime highs of 20°C and overnight lows near 13°C, with 96 mm of rain across 12.9 wet days and about 15.3 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 21% 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 Asker's 7th-clearest and 11th-windiest month. For the whole year in context, see Asker's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
96 mm
12.9 wet days
Daylight
15 h 18 min
4:42 AM – 8:03 PM
Cloud cover
65%
7th clearest
Wind
8 km/h
11th windiest
Solar energy
3.98 kWh/m²
Travel score
5.9
out of 10

Asker is Municipal centre of Asker 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 Asker reaches about 20°C in the afternoon and slips back to 13°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 25°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)
12214
22214
32114
42114
52114
62114
72113
82113
92113
102113
112113
122113
132113
142113
152013
162013
172013
182013
192012
202012
212012
222012
231912
241912
251912
261912
271911
281911
291811
301811
311811

How August really feels in Asker

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.

Asker 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°7311.19.76.40.0
Feb / -6°518.57.78.70.0
Mar / -3°538.1611.30.2
Apr10° / 518.42.314.12.3
May15° / 7110.40.616.74.6
Jun19° / 10°8511.5018.35.8
Jul21° / 13°9211.8017.66.2
Aug20° / 13°9612.9015.35.9
Sep16° / 8610.3012.64.7
Oct10° / 9111.61.19.81.9
Nov / 9011.94.97.20.1
Dec / -4°7011.17.15.70.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24456
34456
44357
54357
64357
74258
84357
94357
104357
114456
124456
134456
144456
154456
164456
174555
184456
194456
204456
214456
224456
234456
244456
254456
264456
274456
284357
294357
304357
314357

Chance of precipitation in August

Any precipitation

Asker gets around 96 mm of rain over 12.9 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 41% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
240
340
441
541
641
741
842
942
1042
1142
1242
1342
1442
1542
1642
1742
1842
1942
2042
2142
2241
2341
2441
2541
2640
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 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1494010
2504010
3504010
4513910
5513910
653389
754379
854379
956368
1057358
1157358
1259347
1359347
1460337
1562326
1662326
1763316
1864315
1965305
2066295
2166295
2268284
2369274
2471254
2572244
2675223
2776213
2878193
2979183
3081163
3183152

Wind in August

Winds average 8 km/h in August.

Across August, 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.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
289calm
299calm
309calm
319calm

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 4:06 AM to 5:18 AM, and sunset from 8:42 PM to 7:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.64:068:42
216.54:098:40
316.44:118:37
416.44:138:35
516.34:168:32
616.24:188:30
716.14:208:27
816.04:238:25
916.04:258:22
1015.94:278:19
1115.84:308:17
1215.74:328:14
1315.64:358:11
1415.54:378:08
1515.44:398:06
1615.34:428:03
1715.34:448:00
1815.24:477:57
1915.14:497:54
2015.04:527:51
2114.94:547:48
2214.84:567:45
2314.74:597:43
2414.65:017:40
2514.55:047:37
2614.55:067:34
2714.45:097:31
2814.35:117:28
2914.25:137:25
3014.15:167:21
3114.05:187:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.98 kWh/m².

For context, solar energy here swings from a low near 0.2 kWh/m² to a high of 5.59 kWh/m² in June across the year — August's 3.98 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.6Bright
24.6Bright
34.5Bright
44.5Bright
54.5Bright
64.4Bright
74.4Bright
84.3Bright
94.3Bright
104.2Bright
114.2Bright
124.2Bright
134.1Bright
144.1Bright
154.0Bright
164.0Bright
174.0Moderate
183.9Moderate
193.9Moderate
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 Asker?

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

5.9
Sightseeing
2nd-best month of the year
3.1
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Asker for sightseeing.

What to pack for Asker in August

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

In August, Asker sees daytime highs around 20°C and nights near 13°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Asker 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 52 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 Asker 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 Asker peaks around July 17 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateLowJul 17UV 5Jan 1UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Low
Apr3Moderate
May4Moderate
Jun4Moderate
Jul5Moderate
Aug4Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Asker?

Asker sits at 59.8°N, 10.4°E, 119 m above sea level, in Norway. The nearest listed city is Drammen, 16 km away.

Topography around Asker

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

Within 3 km, the terrain around Asker has significant variations in elevation — a maximum elevation change of 345 m around an average of 129 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 599 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,482 m.

The land around Asker is covered by trees (62%) within 3 km, trees (60%) and water (22%) within 16 km, and trees (73%) within 80 km.

3 km
345 m
16 km
599 m
80 km
1,482 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Drammen 16 km · Oslo 19 km · Lillestrøm 37 km · Moss 46 km · Horten 46 km · Kongsberg 48 km · Tønsberg 63 km · Sarpsborg 72 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 Asker (59.8333°, 10.4372°, elevation 119 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).