Sandefjord weather in August

In August, Sandefjord sees average daytime highs of 19°C and overnight lows near 14°C, with 99 mm of rain across 13.1 wet days and about 15.2 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 18°C by the end. The sky is clear or mostly clear about 27% of the time in August, and the air most often feels dry.

Daylight stretches from about 16 h 30 min at the start of August to 13 h 54 min by month's end. Set against the rest of the year, August is Sandefjord's 4th-clearest and 11th-windiest month. For the whole year in context, see Sandefjord's year-round climate.

Daytime high
19°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
99 mm
13.1 wet days
Daylight
15 h 18 min
4:46 AM – 8:01 PM
Cloud cover
61%
4th clearest
Wind
12 km/h
11th windiest
Solar energy
4.2 kWh/m²
Travel score
5.8
out of 10

Sandefjord is city within Sandefjord Municipality, Norway.

Density
2,673/km²
people per km²
Founded
1680

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 20°C in the first days to 18°C by the end.

A typical August day in Sandefjord reaches about 19°C in the afternoon and slips back to 14°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 23°C. Set against its neighbours, August runs on par with July and about 4°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12015
22015
32014
42014
52014
62014
72014
82014
92014
102014
112014
122014
132014
142014
152014
162014
171914
181914
191914
201913
211913
221913
231913
241913
251913
261813
271813
281812
291812
301812
311812

How August really feels in Sandefjord

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.

Sandefjord weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°8812.29.16.60.0
Feb / -3°619.27.48.80.0
Mar / -1°608.75.511.30.2
Apr / 568.61.914.12.0
May14° / 7010.10.516.64.2
Jun18° / 11°8811.60185.5
Jul20° / 14°9111.5017.46.1
Aug19° / 14°9913.1015.25.8
Sep15° / 10°10911.3012.64.5
Oct10° / 11813.10.99.82.1
Nov / 115144.27.40.3
Dec / -1°8712.76.760.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 21% of August, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34951
44951
54951
64951
74852
84852
94852
104753
114951
124951
134852
144951
155050
164951
175050
185050
194951
204951
214951
224852
234951
244951
254951
264852
274852
284753
294753
304753
314753

Chance of precipitation in August

Any precipitation

Sandefjord gets around 99 mm of rain over 13.1 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 42% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
139
240
340
440
541
641
741
842
942
1042
1142
1242
1342
1442
1542
1642
1742
1842
1943
2043
2143
2243
2343
2443
2542
2642
2742
2841
2941
3040
3140

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 58% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
1444115
2444115
3444114
4454114
5464014
6474013
7483913
8493912
9503812
10513712
11523612
12543511
13553411
14553411
15573310
16573310
17583210
1859329
1960319
2061318
2162308
2264297
2365287
2467276
2569265
2670255
2772244
2873234
2975223
3077203
3178193

Wind in August

Winds average 12 km/h in August.

Across August, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 30 min at the start of August to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 156 minutes over August. Sunrise moves from 4:11 AM to 5:21 AM, and sunset from 8:39 PM to 7:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.54:118:39
216.44:148:37
316.34:168:34
416.24:188:32
516.14:208:29
616.14:238:27
716.04:258:24
815.94:278:22
915.84:308:19
1015.74:328:17
1115.74:348:14
1215.64:368:12
1315.54:398:09
1415.44:418:06
1515.34:438:03
1615.34:468:01
1715.24:487:58
1815.14:507:55
1915.04:537:52
2014.94:557:50
2114.84:577:47
2214.75:007:44
2314.65:027:41
2414.65:047:38
2514.55:077:35
2614.45:097:32
2714.35:117:29
2814.25:147:26
2914.15:167:24
3014.05:187:21
3113.95:217:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.2 kWh/m².

For context, solar energy here swings from a low near 0.23 kWh/m² to a high of 5.79 kWh/m² in June across the year — August's 4.2 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.8Bright
34.8Bright
44.7Bright
54.7Bright
64.7Bright
74.6Bright
84.6Bright
94.5Bright
104.5Bright
114.4Bright
124.4Bright
134.3Bright
144.3Bright
154.3Bright
164.2Bright
174.2Bright
184.1Bright
194.1Bright
204.0Bright
214.0Bright
224.0Moderate
233.9Moderate
243.8Moderate
253.8Moderate
263.7Moderate
273.7Moderate
283.6Moderate
293.6Moderate
303.5Moderate
313.5Moderate
Planning a trip in August

Is August a good time to visit Sandefjord?

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

5.8
Sightseeing
2nd-best month of the year
2.7
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Sandefjord for sightseeing.

What to pack for Sandefjord in August

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

In August, Sandefjord sees daytime highs around 19°C and nights near 14°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Sandefjord 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 offshore 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°5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan4Bracing
Feb3Bracing
Mar3Bracing
Apr6Bracing
May11Bracing
Jun15Bracing
Jul18Cool
Aug18Cool
Sep15Cool
Oct12Bracing
Nov9Bracing
Dec6Bracing

UV index in Sandefjord in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sandefjord 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
Jun5Moderate
Jul5Moderate
Aug5Moderate
Sep3Moderate
Oct1Low
Nov0Low
Dec0Low
Location & terrain

Where is Sandefjord?

Sandefjord sits at 59.1°N, 10.2°E, 11 m above sea level, in Norway. The nearest listed city is Larvik, 14 km away.

Topography around Sandefjord

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

Within 3 km, the terrain around Sandefjord has only modest variations in elevation — a maximum elevation change of 111 m around an average of 41 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 305 m; within 80 km, large variations in elevation — a maximum elevation change of 1,091 m.

The land around Sandefjord is covered by trees (39%), cropland (21%) and artificial surfaces (21%) within 3 km, trees (45%) and water (31%) within 16 km, and trees (54%) and water (35%) within 80 km.

3 km
111 m
16 km
305 m
80 km
1,091 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Larvik 14 km · Tønsberg 19 km · Porsgrunn 32 km · Horten 35 km · Skien 36 km · Fredrikstad 42 km · Moss 42 km · Sarpsborg 54 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 Sandefjord (59.1312°, 10.2166°, elevation 11 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).