Kalundborg weather in August

In August, Kalundborg sees average daytime highs of 19°C and overnight lows near 16°C, with 71 mm of rain across 11.6 wet days and about 14.8 hours of daylight. It is the 1st-warmest and 2nd-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 30% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 15 h 48 min at the start of August to 13 h 42 min by month's end. Set against the rest of the year, August is Kalundborg's 5th-clearest and 9th-windiest month. For the whole year in context, see Kalundborg's year-round climate.

Daytime high
19°
1st warmest
Overnight low
16°
12th coldest
Rainfall
71 mm
11.6 wet days
Daylight
14 h 48 min
4:55 AM – 7:44 PM
Cloud cover
58%
5th clearest
Wind
22 km/h
9th windiest
Solar energy
4.6 kWh/m²
Travel score
5.9
out of 10

Kalundborg is town in Denmark.

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 Kalundborg reaches about 19°C in the afternoon and slips back to 16°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 22°C. Set against its neighbours, August runs on par with July and about 3°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12017
22017
32017
42017
52017
61917
71917
81917
91917
101917
111917
121917
131917
141916
151916
161916
171916
181916
191916
201916
211916
221916
231816
241816
251816
261816
271816
281816
291815
301815
311815

How August really feels in Kalundborg

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.

Kalundborg weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5712.23.47.40.0
Feb / 449.93.59.20.0
Mar / 439.42.111.40.1
Apr / 368.50.313.81.5
May13° / 10°5110015.93.6
Jun16° / 13°6410.5017.15.1
Jul19° / 16°6310.7016.76.0
Aug19° / 16°7111.6014.85.9
Sep16° / 14°6711.6012.54.7
Oct12° / 10°7513010.12.8
Nov / 6513.40.681.1
Dec / 6312.72.46.90.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35050
45050
55050
64951
74951
84951
95050
105050
115050
124951
134951
144951
154951
165050
175050
184951
195050
205050
215050
224951
234951
244951
254852
264852
274852
284852
294753
304753
314753

Chance of precipitation in August

Any precipitation

Kalundborg gets around 71 mm of rain over 11.6 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 38% and peaks near 41% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
133
233
333
434
534
634
735
835
936
1036
1137
1237
1338
1438
1538
1639
1739
1839
1939
2039
2139
2239
2340
2440
2540
2640
2740
2840
2941
3041
3141

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12446264
22446264
32445264
42545264
52545263
62645263
72645263
82645262
92745262
102745262
112744262
122844262
132844262
142944252
152944252
163044252
173044241
183144241
193244231
203344221
213344211
223543201
233643191
243843181
253943171
264142151
274342141
284542131
294641111
304841101
31504091

Wind in August

Winds average 22 km/h in August.

Across August, daily wind ranges from about 20 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
120light breeze
220breezy
320breezy
420breezy
521breezy
621breezy
721breezy
821breezy
921breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1822breezy
1922breezy
2022breezy
2123breezy
2223breezy
2323breezy
2423breezy
2523breezy
2623breezy
2723breezy
2823breezy
2923breezy
3023breezy
3123breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 48 min at the start of August to 13 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 126 minutes over August. Sunrise moves from 4:26 AM to 5:25 AM, and sunset from 8:17 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.84:268:17
215.84:288:15
315.74:308:13
415.74:328:11
515.64:348:09
615.54:368:07
715.54:388:05
815.44:398:03
915.34:418:01
1015.24:437:58
1115.24:457:56
1215.14:477:54
1315.04:497:52
1415.04:517:49
1514.94:537:47
1614.84:557:44
1714.84:577:42
1814.74:597:40
1914.65:017:37
2014.55:037:35
2114.55:057:32
2214.45:077:30
2314.35:097:27
2414.25:117:25
2514.25:137:22
2614.15:157:20
2714.05:177:17
2813.95:197:15
2913.95:217:12
3013.85:237:09
3113.75:257:07

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.6 kWh/m².

For context, solar energy here swings from a low near 0.38 kWh/m² to a high of 6 kWh/m² in June across the year — August's 4.6 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.2Bright
45.2Bright
55.2Bright
65.1Bright
75.1Bright
85.0Bright
95.0Bright
104.9Bright
114.9Bright
124.8Bright
134.8Bright
144.7Bright
154.7Bright
164.6Bright
174.5Bright
184.5Bright
194.4Bright
204.4Bright
214.3Bright
224.3Bright
234.2Bright
244.2Bright
254.1Bright
264.1Bright
274.0Bright
284.0Moderate
293.9Moderate
303.9Moderate
313.8Moderate
Planning a trip in August

Is August a good time to visit Kalundborg?

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
2.4
Beach & pool
1st-best month of the year

August is a reasonable time to visit Kalundborg for sightseeing.

What to pack for Kalundborg in August

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

In August, Kalundborg sees daytime highs around 19°C and nights near 16°C. Worth packing: rain gear, sun protection and a windbreaker. About 12 days see rain.

rain gearsun protectiona windbreaker

Sea temperature near Kalundborg 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 2°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
Jan3Bracing
Feb2Bracing
Mar3Bracing
Apr6Bracing
May11Bracing
Jun15Bracing
Jul18Cool
Aug18Cool
Sep16Cool
Oct12Bracing
Nov8Bracing
Dec5Bracing

UV index in Kalundborg 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 Kalundborg peaks around June 22 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 20 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 6 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 22UV 6Dec 20UV 0
UV index (midday)Level
Jan0Low
Feb1Low
Mar2Moderate
Apr3Moderate
May5Moderate
Jun6High
Jul6High
Aug5Moderate
Sep4Moderate
Oct2Low
Nov1Low
Dec0Low
Location & terrain

Where is Kalundborg?

Kalundborg sits at 55.7°N, 11.1°E, 3 m above sea level, in Denmark. The nearest listed city is Slagelse, 35 km away.

SlagelseHolbækNyborgRingstedOdenseRoskildeKlinteby FrihedFrederikssund

Topography around Kalundborg

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

Within 3 km, the terrain around Kalundborg has only modest variations in elevation — a maximum elevation change of 62 m around an average of 12 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 83 m; within 80 km, only modest variations in elevation — a maximum elevation change of 149 m.

The land around Kalundborg is covered by cropland (22%), water (22%) and grassland (20%) within 3 km, water (61%) and cropland (20%) within 16 km, and water (53%) and cropland (25%) within 80 km.

3 km
62 m
16 km
83 m
80 km
149 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Slagelse 35 km · Holbæk 39 km · Nyborg 45 km · Ringsted 51 km · Odense 54 km · Roskilde 62 km · Klinteby Frihed 62 km · Frederikssund 64 km

Denmark travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E / F / K
230 V · 50 Hz
Prices
≈ 92% of US
price level, 2025
GDP per capita
$76,970
2025
Happiness
7.5 / 10
World Happiness, 2025
Safe drinking water
100%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
3.7
per 100k/yr, 2019
Income group
High
World Bank
English
Very high
EF EPI 611
Religion
Evangelical Lutheran 71%other/none/unspecified 24%Muslim 4%

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 Kalundborg (55.6795°, 11.0886°, elevation 3 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).