Horten weather in August

In August, Horten sees average daytime highs of 21°C and overnight lows near 12°C, with 87 mm of rain across 12.7 wet days and about 15.3 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 19°C by the end. The sky is clear or mostly clear about 23% 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 14 hours by month's end. Set against the rest of the year, August is Horten's 4th-clearest and 11th-windiest month. For the whole year in context, see Horten's year-round climate.

Daytime high: 21°; 2nd warmest
Overnight low: 12°; 11th coldest
Rainfall: 87 mm; 12.7 wet days
Daylight: 15 h 18 min; 4:43 AM – 8:01 PM
Cloud cover: 63%; 4th clearest
Wind: 9 km/h; 11th windiest
Solar energy: 4.05 kWh/m²
Travel score: 6.0; out of 10

Horten is settlement in Horten Municipality, Norway.

Density: 3,138/km²; people per km²

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

← July Horten year-round climate September →Best places to visit in August

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 19°C by the end.

A typical August day in Horten reaches about 21°C in the afternoon and slips back to 12°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°C. Set against its neighbours, August runs about 1°C cooler than July and about 5°C warmer than September.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	22	22	22	22	22	22	22	21	21	21	21	21	21	21	21	21	21	21	20	20	20	20	20	20	20	19	19	19	19	19	19
Avg low (°C)	14	14	14	13	13	13	13	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	11	11	11	11	11	11

	Avg high (°C)	Avg low (°C)
1	22	14
2	22	14
3	22	14
4	22	13
5	22	13
6	22	13
7	22	13
8	21	13
9	21	13
10	21	13
11	21	13
12	21	13
13	21	13
14	21	13
15	21	13
16	21	13
17	21	13
18	21	12
19	20	12
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	19	11
27	19	11
28	19	11
29	19	11
30	19	11
31	19	11

How August really feels in Horten

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Horten 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.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	0° / -5°	76	11.4	8.9	6.6	0.0
Feb	1° / -5°	54	8.7	7.4	8.7	0.0
Mar	5° / -2°	54	8.3	5.4	11.3	0.4
Apr	11° / 2°	52	8.7	1.9	14.1	2.6
May	16° / 7°	68	10.2	0.5	16.6	4.9
Jun	19° / 11°	82	11.8	0	18.1	5.8
Jul	22° / 13°	86	11.1	0	17.5	6.3
Aug	21° / 12°	87	12.7	0	15.3	6.0
Sep	16° / 9°	88	10.7	0	12.6	4.8
Oct	10° / 4°	92	11.6	0.9	9.8	2.2
Nov	5° / 1°	92	12.2	4.2	7.3	0.2
Dec	1° / -3°	73	11.5	6.6	5.9	0.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% 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 55%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	46	45	46	45	45	45	45	45	45	45	46	46	46	46	45	46	46	46	46	45	45	45	45	44	44	44	43	44	43	44	43
Cloudier (%)	54	55	54	55	55	55	55	55	55	55	54	54	54	54	55	54	54	54	54	55	55	55	55	56	56	56	57	56	57	56	57

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	45	55
11	46	54
12	46	54
13	46	54
14	46	54
15	45	55
16	46	54
17	46	54
18	46	54
19	46	54
20	45	55
21	45	55
22	45	55
23	45	55
24	44	56
25	44	56
26	44	56
27	43	57
28	44	56
29	43	57
30	44	56
31	43	57

Chance of precipitation in August

Any precipitation

Horten gets around 87 mm of rain over 12.7 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 40% and peaks near 41% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	38	39	40	40	41	41	41	41	41	41	41	41	41	41	40	40	40	40	40	40	40	40	40	40	40	40	39	39	39	38	38

	Rain chance (%)
1	38
2	39
3	40
4	40
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	39
28	39
29	39
30	38
31	38

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 65% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	52	53	53	53	55	56	56	57	59	60	60	61	61	63	63	64	65	66	66	67	68	69	70	71	74	75	77	78	80	81	82
Comfortable (%)	39	38	38	38	37	36	36	35	34	33	33	32	32	31	31	30	30	29	29	28	28	27	26	25	23	22	20	19	17	16	15
Humid (%)	9	9	9	9	8	8	8	8	7	7	7	7	7	6	6	6	5	5	5	5	4	4	4	4	3	3	3	3	3	3	3

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	53	38	9
3	53	38	9
4	53	38	9
5	55	37	8
6	56	36	8
7	56	36	8
8	57	35	8
9	59	34	7
10	60	33	7
11	60	33	7
12	61	32	7
13	61	32	7
14	63	31	6
15	63	31	6
16	64	30	6
17	65	30	5
18	66	29	5
19	66	29	5
20	67	28	5
21	68	28	4
22	69	27	4
23	70	26	4
24	71	25	4
25	74	23	3
26	75	22	3
27	77	20	3
28	78	19	3
29	80	17	3
30	81	16	3
31	82	15	3

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	9	calm
2	9	calm
3	9	calm
4	9	calm
5	9	calm
6	9	calm
7	9	calm
8	9	calm
9	9	calm
10	9	calm
11	9	calm
12	9	calm
13	9	calm
14	9	calm
15	9	calm
16	9	calm
17	9	calm
18	9	calm
19	9	calm
20	9	calm
21	10	calm
22	10	calm
23	10	calm
24	10	calm
25	10	calm
26	10	calm
27	10	calm
28	10	calm
29	10	calm
30	10	calm
31	10	calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 16 h 30 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 150 minutes over August. Sunrise moves from 4:09 AM to 5:19 AM, and sunset from 8:40 PM to 7:17 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	16.5	16.4	16.4	16.3	16.2	16.1	16.0	16.0	15.9	15.8	15.7	15.6	15.5	15.5	15.4	15.3	15.2	15.1	15.0	14.9	14.9	14.8	14.7	14.6	14.5	14.4	14.3	14.2	14.1	14.1	14.0
Sunrise (AM)	4:09	4:11	4:13	4:15	4:18	4:20	4:22	4:25	4:27	4:29	4:32	4:34	4:36	4:39	4:41	4:43	4:46	4:48	4:51	4:53	4:55	4:58	5:00	5:02	5:05	5:07	5:10	5:12	5:14	5:17	5:19
Sunset (PM)	8:40	8:37	8:35	8:32	8:30	8:27	8:25	8:22	8:20	8:17	8:14	8:12	8:09	8:06	8:04	8:01	7:58	7:55	7:52	7:50	7:47	7:44	7:41	7:38	7:35	7:32	7:29	7:26	7:23	7:20	7:17

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	16.5	4:09	8:40
2	16.4	4:11	8:37
3	16.4	4:13	8:35
4	16.3	4:15	8:32
5	16.2	4:18	8:30
6	16.1	4:20	8:27
7	16.0	4:22	8:25
8	16.0	4:25	8:22
9	15.9	4:27	8:20
10	15.8	4:29	8:17
11	15.7	4:32	8:14
12	15.6	4:34	8:12
13	15.5	4:36	8:09
14	15.5	4:39	8:06
15	15.4	4:41	8:04
16	15.3	4:43	8:01
17	15.2	4:46	7:58
18	15.1	4:48	7:55
19	15.0	4:51	7:52
20	14.9	4:53	7:50
21	14.9	4:55	7:47
22	14.8	4:58	7:44
23	14.7	5:00	7:41
24	14.6	5:02	7:38
25	14.5	5:05	7:35
26	14.4	5:07	7:32
27	14.3	5:10	7:29
28	14.2	5:12	7:26
29	14.1	5:14	7:23
30	14.1	5:17	7:20
31	14.0	5:19	7:17

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.05 kWh/m².

For context, solar energy here swings from a low near 0.22 kWh/m² to a high of 5.63 kWh/m² in June across the year — August's 4.05 kWh/m² falls in the middle.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	4.7	4.7	4.6	4.6	4.5	4.5	4.4	4.4	4.3	4.3	4.3	4.2	4.2	4.2	4.1	4.1	4.0	4.0	4.0	3.9	3.9	3.8	3.8	3.7	3.7	3.6	3.5	3.5	3.4	3.4	3.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.7	Bright
2	4.7	Bright
3	4.6	Bright
4	4.6	Bright
5	4.5	Bright
6	4.5	Bright
7	4.4	Bright
8	4.4	Bright
9	4.3	Bright
10	4.3	Bright
11	4.3	Bright
12	4.2	Bright
13	4.2	Bright
14	4.2	Bright
15	4.1	Bright
16	4.1	Bright
17	4.0	Bright
18	4.0	Moderate
19	4.0	Moderate
20	3.9	Moderate
21	3.9	Moderate
22	3.8	Moderate
23	3.8	Moderate
24	3.7	Moderate
25	3.7	Moderate
26	3.6	Moderate
27	3.5	Moderate
28	3.5	Moderate
29	3.4	Moderate
30	3.4	Moderate
31	3.3	Moderate

Planning a trip in August

Is August a good time to visit Horten?

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

6.0

Sightseeing

2nd-best month of the year

3.4

Beach & pool

2nd-best month of the year

August is a reasonable time to visit Horten for sightseeing.

What to pack for Horten in August

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

In August, Horten sees daytime highs around 21°C and nights near 12°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Horten 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	4	3	3	6	11	15	18	18	15	12	9	6
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	4	Bracing
Feb	3	Bracing
Mar	3	Bracing
Apr	6	Bracing
May	11	Bracing
Jun	15	Cool
Jul	18	Cool
Aug	18	Cool
Sep	15	Cool
Oct	12	Bracing
Nov	9	Bracing
Dec	6	Bracing

UV index in Horten 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 Horten peaks around July 18 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	4	4	5	5	3	1	0	0
Level	Low	Low	Low	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Low
Apr	3	Moderate
May	4	Moderate
Jun	4	Moderate
Jul	5	Moderate
Aug	5	Moderate
Sep	3	Moderate
Oct	1	Low
Nov	0	Low
Dec	0	Low

Location & terrain

Where is Horten?

Horten sits at 59.4°N, 10.5°E, 16 m above sea level, in Norway. The nearest listed city is Moss, 10 km away.

Topography around Horten

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

Within 3 km, the terrain around Horten has only modest variations in elevation — a maximum elevation change of 124 m around an average of 15 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 946 m.

The land around Horten is covered by water (58%) and trees (21%) within 3 km, water (44%) and trees (29%) within 16 km, and trees (62%) and water (25%) within 80 km.

3 km

124 m

water 58%

16 km

307 m

water 44%

80 km

946 m

trees 62%

treesgrasslandcroplandartificial surfaceswater

← July Horten year-round climate September →Best places to visit in August

August weather nearby: Moss 10 km · Tønsberg 17 km · Fredrikstad 34 km · Sandefjord 35 km · Sarpsborg 38 km · Drammen 40 km · Asker 46 km · Larvik 48 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

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 Horten (59.4172°, 10.4834°, elevation 16 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).

	Avg high (°C)	Avg low (°C)
1	22	14
2	22	14
3	22	14
4	22	13
5	22	13
6	22	13
7	22	13
8	21	13
9	21	13
10	21	13
11	21	13
12	21	13
13	21	13
14	21	13
15	21	13
16	21	13
17	21	13
18	21	12
19	20	12
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	19	11
27	19	11
28	19	11
29	19	11
30	19	11
31	19	11

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	45	55
11	46	54
12	46	54
13	46	54
14	46	54
15	45	55
16	46	54
17	46	54
18	46	54
19	46	54
20	45	55
21	45	55
22	45	55
23	45	55
24	44	56
25	44	56
26	44	56
27	43	57
28	44	56
29	43	57
30	44	56
31	43	57

	Rain chance (%)
1	38
2	39
3	40
4	40
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	39
28	39
29	39
30	38
31	38

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	53	38	9
3	53	38	9
4	53	38	9
5	55	37	8
6	56	36	8
7	56	36	8
8	57	35	8
9	59	34	7
10	60	33	7
11	60	33	7
12	61	32	7
13	61	32	7
14	63	31	6
15	63	31	6
16	64	30	6
17	65	30	5
18	66	29	5
19	66	29	5
20	67	28	5
21	68	28	4
22	69	27	4
23	70	26	4
24	71	25	4
25	74	23	3
26	75	22	3
27	77	20	3
28	78	19	3
29	80	17	3
30	81	16	3
31	82	15	3

	Avg high (°C)	Avg low (°C)
1	22	14
2	22	14
3	22	14
4	22	13
5	22	13
6	22	13
7	22	13
8	21	13
9	21	13
10	21	13
11	21	13
12	21	13
13	21	13
14	21	13
15	21	13
16	21	13
17	21	13
18	21	12
19	20	12
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	19	11
27	19	11
28	19	11
29	19	11
30	19	11
31	19	11

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	45	55
11	46	54
12	46	54
13	46	54
14	46	54
15	45	55
16	46	54
17	46	54
18	46	54
19	46	54
20	45	55
21	45	55
22	45	55
23	45	55
24	44	56
25	44	56
26	44	56
27	43	57
28	44	56
29	43	57
30	44	56
31	43	57

	Rain chance (%)
1	38
2	39
3	40
4	40
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	39
28	39
29	39
30	38
31	38

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	53	38	9
3	53	38	9
4	53	38	9
5	55	37	8
6	56	36	8
7	56	36	8
8	57	35	8
9	59	34	7
10	60	33	7
11	60	33	7
12	61	32	7
13	61	32	7
14	63	31	6
15	63	31	6
16	64	30	6
17	65	30	5
18	66	29	5
19	66	29	5
20	67	28	5
21	68	28	4
22	69	27	4
23	70	26	4
24	71	25	4
25	74	23	3
26	75	22	3
27	77	20	3
28	78	19	3
29	80	17	3
30	81	16	3
31	82	15	3

	Avg high (°C)	Avg low (°C)
1	22	14
2	22	14
3	22	14
4	22	13
5	22	13
6	22	13
7	22	13
8	21	13
9	21	13
10	21	13
11	21	13
12	21	13
13	21	13
14	21	13
15	21	13
16	21	13
17	21	13
18	21	12
19	20	12
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	19	11
27	19	11
28	19	11
29	19	11
30	19	11
31	19	11

	Clearer (%)	Cloudier (%)
1	46	54
2	45	55
3	46	54
4	45	55
5	45	55
6	45	55
7	45	55
8	45	55
9	45	55
10	45	55
11	46	54
12	46	54
13	46	54
14	46	54
15	45	55
16	46	54
17	46	54
18	46	54
19	46	54
20	45	55
21	45	55
22	45	55
23	45	55
24	44	56
25	44	56
26	44	56
27	43	57
28	44	56
29	43	57
30	44	56
31	43	57

	Rain chance (%)
1	38
2	39
3	40
4	40
5	41
6	41
7	41
8	41
9	41
10	41
11	41
12	41
13	41
14	41
15	40
16	40
17	40
18	40
19	40
20	40
21	40
22	40
23	40
24	40
25	40
26	40
27	39
28	39
29	39
30	38
31	38

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	53	38	9
3	53	38	9
4	53	38	9
5	55	37	8
6	56	36	8
7	56	36	8
8	57	35	8
9	59	34	7
10	60	33	7
11	60	33	7
12	61	32	7
13	61	32	7
14	63	31	6
15	63	31	6
16	64	30	6
17	65	30	5
18	66	29	5
19	66	29	5
20	67	28	5
21	68	28	4
22	69	27	4
23	70	26	4
24	71	25	4
25	74	23	3
26	75	22	3
27	77	20	3
28	78	19	3
29	80	17	3
30	81	16	3
31	82	15	3