Douglas weather in August

In August, Douglas sees average daytime highs of 16°C and overnight lows near 14°C, with 78 mm of rain across 12.9 wet days and about 14.6 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. 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 15 h 36 min at the start of August to 13 h 36 min by month's end. Set against the rest of the year, August is Douglas's 4th-clearest and 10th-windiest month. For the whole year in context, see Douglas's year-round climate.

Daytime high: 16°; 1st warmest
Overnight low: 14°; 12th coldest
Rainfall: 78 mm; 12.9 wet days
Daylight: 14 h 42 min; 5:02 AM – 7:42 PM
Cloud cover: 66%; 4th clearest
Wind: 25 km/h; 10th windiest
Solar energy: 4.47 kWh/m²
Travel score: 4.4; out of 10

Douglas is capital city of the Isle of Man.

Density: 2,596/km²; people per km²
Founded: 1670

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

← July Douglas 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

Day-to-day highs hold fairly steady near 16°C through the month.

A typical August day in Douglas reaches about 16°C in the afternoon and slips back to 14°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 17°C. Set against its neighbours, August runs on par with July and on par with 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)	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	15	15	15	15
Avg low (°C)	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14

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

Douglas weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	8° / 6°	97	16.5	0.2	7.7	1.1
Feb	8° / 6°	75	14.2	0.4	9.4	1.0
Mar	8° / 6°	70	12.9	0.5	11.5	1.2
Apr	9° / 7°	59	11.7	0.1	13.7	1.7
May	11° / 9°	56	11.2	0	15.7	2.7
Jun	13° / 12°	64	10.7	0	16.8	3.6
Jul	15° / 14°	67	12.2	0	16.4	4.2
Aug	16° / 14°	78	12.9	0	14.6	4.4
Sep	15° / 13°	85	13.3	0	12.5	4.1
Oct	13° / 11°	117	16.2	0	10.2	3.1
Nov	11° / 9°	125	18.5	0.1	8.2	2.0
Dec	9° / 7°	114	18.2	0.2	7.2	1.5

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%.

	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 (%)	37	37	37	37	38	38	37	37	37	37	38	38	38	40	40	40	40	40	40	41	41	42	43	43	42	42	42	42	42	41	41
Cloudier (%)	63	63	63	63	62	62	63	63	63	63	62	62	62	60	60	60	60	60	60	59	59	58	57	57	58	58	58	58	58	59	59

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	37	63
4	37	63
5	38	62
6	38	62
7	37	63
8	37	63
9	37	63
10	37	63
11	38	62
12	38	62
13	38	62
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	41	59
22	42	58
23	43	57
24	43	57
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59
31	41	59

Chance of precipitation in August

Any precipitation

Douglas gets around 78 mm of rain over 12.9 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.

	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 (%)	43	43	43	43	43	43	43	42	42	42	42	42	42	42	42	43	43	43	43	42	42	42	41	41	40	39	39	38	38	38	38

	Rain chance (%)
1	43
2	43
3	43
4	43
5	43
6	43
7	43
8	42
9	42
10	42
11	42
12	42
13	42
14	42
15	42
16	43
17	43
18	43
19	43
20	42
21	42
22	42
23	41
24	41
25	40
26	39
27	39
28	38
29	38
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 61% 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 (%)	56	56	56	56	56	56	57	57	57	58	57	58	58	59	59	60	60	61	62	63	63	64	65	65	66	66	68	68	68	69	69
Comfortable (%)	44	44	44	43	43	43	42	42	42	41	41	40	40	39	39	38	38	37	36	35	35	34	33	33	32	32	31	31	31	30	30
Humid (%)	0	0	0	1	1	1	1	1	1	1	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)
1	56	44	0
2	56	44	0
3	56	44	0
4	56	43	1
5	56	43	1
6	56	43	1
7	57	42	1
8	57	42	1
9	57	42	1
10	58	41	1
11	57	41	2
12	58	40	2
13	58	40	2
14	59	39	2
15	59	39	2
16	60	38	2
17	60	38	2
18	61	37	2
19	62	36	2
20	63	35	2
21	63	35	2
22	64	34	2
23	65	33	2
24	65	33	2
25	66	32	2
26	66	32	2
27	68	31	1
28	68	31	1
29	68	31	1
30	69	30	1
31	69	30	1

Wind in August

Winds average 25 km/h in August.

Across August, daily wind ranges from about 23 km/h on the calmest days to 26 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)	23	23	24	24	24	24	24	24	24	24	24	24	24	25	25	25	25	25	25	25	25	25	25	25	26	26	26	26	26	26	26
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

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

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 36 min at the start of August to 13 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over August. Sunrise moves from 4:36 AM to 5:30 AM, and sunset from 8:12 PM to 7:06 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)	15.6	15.6	15.5	15.4	15.4	15.3	15.3	15.2	15.1	15.1	15.0	14.9	14.9	14.8	14.7	14.7	14.6	14.5	14.5	14.4	14.3	14.2	14.2	14.1	14.0	14.0	13.9	13.8	13.8	13.7	13.6
Sunrise (AM)	4:36	4:37	4:39	4:41	4:42	4:44	4:46	4:48	4:50	4:51	4:53	4:55	4:57	4:59	5:00	5:02	5:04	5:06	5:08	5:09	5:11	5:13	5:15	5:17	5:19	5:21	5:22	5:24	5:26	5:28	5:30
Sunset (PM)	8:12	8:11	8:09	8:07	8:05	8:03	8:01	7:59	7:57	7:55	7:53	7:51	7:49	7:46	7:44	7:42	7:40	7:37	7:35	7:33	7:30	7:28	7:26	7:23	7:21	7:18	7:16	7:14	7:11	7:09	7:06

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	15.6	4:36	8:12
2	15.6	4:37	8:11
3	15.5	4:39	8:09
4	15.4	4:41	8:07
5	15.4	4:42	8:05
6	15.3	4:44	8:03
7	15.3	4:46	8:01
8	15.2	4:48	7:59
9	15.1	4:50	7:57
10	15.1	4:51	7:55
11	15.0	4:53	7:53
12	14.9	4:55	7:51
13	14.9	4:57	7:49
14	14.8	4:59	7:46
15	14.7	5:00	7:44
16	14.7	5:02	7:42
17	14.6	5:04	7:40
18	14.5	5:06	7:37
19	14.5	5:08	7:35
20	14.4	5:09	7:33
21	14.3	5:11	7:30
22	14.2	5:13	7:28
23	14.2	5:15	7:26
24	14.1	5:17	7:23
25	14.0	5:19	7:21
26	14.0	5:21	7:18
27	13.9	5:22	7:16
28	13.8	5:24	7:14
29	13.8	5:26	7:11
30	13.7	5:28	7:09
31	13.6	5:30	7:06

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.47 kWh/m².

For context, solar energy here swings from a low near 0.5 kWh/m² to a high of 5.8 kWh/m² in June across the year — August's 4.47 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)	4.9	4.9	4.9	4.8	4.8	4.8	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.5	4.5	4.5	4.4	4.4	4.4	4.3	4.3	4.3	4.2	4.2	4.1	4.1	4.1	4.0	4.0	3.9	3.9
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	4.9	Bright
2	4.9	Bright
3	4.9	Bright
4	4.8	Bright
5	4.8	Bright
6	4.8	Bright
7	4.7	Bright
8	4.7	Bright
9	4.7	Bright
10	4.7	Bright
11	4.6	Bright
12	4.6	Bright
13	4.6	Bright
14	4.5	Bright
15	4.5	Bright
16	4.5	Bright
17	4.4	Bright
18	4.4	Bright
19	4.4	Bright
20	4.3	Bright
21	4.3	Bright
22	4.3	Bright
23	4.2	Bright
24	4.2	Bright
25	4.1	Bright
26	4.1	Bright
27	4.1	Bright
28	4.0	Bright
29	4.0	Moderate
30	3.9	Moderate
31	3.9	Moderate

Planning a trip in August

Is August a good time to visit Douglas?

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

4.4

Sightseeing

1st-best month of the year

—

Beach & pool

never really warm enough

August is a reasonable time to visit Douglas for sightseeing.

What to pack for Douglas in August

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

In August, Douglas sees daytime highs around 16°C and nights near 14°C. Worth packing: a warm layer, rain gear and a windbreaker. About 13 days see rain.

a warm layerrain geara windbreaker

Sea temperature near Douglas in August

The nearest coast averages about 15°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 15°C and coldest in March near 8°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)	9	8	8	8	10	12	14	15	15	14	12	10
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	9	Bracing
Feb	8	Bracing
Mar	8	Bracing
Apr	8	Bracing
May	10	Bracing
Jun	12	Bracing
Jul	14	Bracing
Aug	15	Cool
Sep	15	Bracing
Oct	14	Bracing
Nov	12	Bracing
Dec	10	Bracing

UV index in Douglas in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Douglas peaks around August 11 at about 6 (high) — a little sun protection helps at midday. It bottoms out near December 21 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 5 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	3	3	5	5	5	6	3	2	1	0
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	3	Moderate
Apr	3	Moderate
May	5	High
Jun	5	High
Jul	5	High
Aug	6	High
Sep	3	Moderate
Oct	2	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Douglas?

Douglas sits at 54.1°N, 4.5°W, 31 m above sea level, in Isle of Man. The nearest listed city is Whitehaven, 73 km away.

Topography around Douglas

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

Within 3 km, the terrain around Douglas has only modest variations in elevation — a maximum elevation change of 145 m around an average of 36 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 617 m; within 80 km, large variations in elevation — a maximum elevation change of 613 m.

The land around Douglas is covered by water (40%) and grassland (26%) within 3 km, water (52%) and grassland (36%) within 16 km, and water (88%) within 80 km.

3 km

145 m

water 40%

16 km

617 m

water 52%

80 km

613 m

water 88%

treesgrasslandcroplandartificial surfaceswater

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

August weather nearby: Whitehaven 73 km · Workington 82 km · Barrow in Furness 82 km · Newtownards 92 km · Bangor 95 km · Fleetwood 99 km · Thornton-Cleveleys 100 km · Blackpool 101 km

Isle of Man travel facts

Power plugs: Type G; 230 V · 50 Hz
GDP per capita: $90,015; 2023
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.2; per 100k, 2015
Income group: High; World Bank
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 Douglas (54.15°, -4.4833°, elevation 31 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	16	14
2	16	14
3	16	14
4	16	14
5	16	14
6	16	14
7	16	14
8	16	14
9	16	14
10	16	14
11	16	14
12	16	14
13	16	14
14	16	14
15	16	14
16	16	14
17	16	14
18	16	14
19	16	14
20	16	14
21	16	14
22	16	14
23	16	14
24	16	14
25	16	14
26	16	14
27	16	14
28	15	14
29	15	14
30	15	14
31	15	14

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	37	63
4	37	63
5	38	62
6	38	62
7	37	63
8	37	63
9	37	63
10	37	63
11	38	62
12	38	62
13	38	62
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	41	59
22	42	58
23	43	57
24	43	57
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59
31	41	59

	Rain chance (%)
1	43
2	43
3	43
4	43
5	43
6	43
7	43
8	42
9	42
10	42
11	42
12	42
13	42
14	42
15	42
16	43
17	43
18	43
19	43
20	42
21	42
22	42
23	41
24	41
25	40
26	39
27	39
28	38
29	38
30	38
31	38

	Dry (%)	Comfortable (%)	Humid (%)
1	56	44	0
2	56	44	0
3	56	44	0
4	56	43	1
5	56	43	1
6	56	43	1
7	57	42	1
8	57	42	1
9	57	42	1
10	58	41	1
11	57	41	2
12	58	40	2
13	58	40	2
14	59	39	2
15	59	39	2
16	60	38	2
17	60	38	2
18	61	37	2
19	62	36	2
20	63	35	2
21	63	35	2
22	64	34	2
23	65	33	2
24	65	33	2
25	66	32	2
26	66	32	2
27	68	31	1
28	68	31	1
29	68	31	1
30	69	30	1
31	69	30	1

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

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	37	63
4	37	63
5	38	62
6	38	62
7	37	63
8	37	63
9	37	63
10	37	63
11	38	62
12	38	62
13	38	62
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	41	59
22	42	58
23	43	57
24	43	57
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59
31	41	59

	Rain chance (%)
1	43
2	43
3	43
4	43
5	43
6	43
7	43
8	42
9	42
10	42
11	42
12	42
13	42
14	42
15	42
16	43
17	43
18	43
19	43
20	42
21	42
22	42
23	41
24	41
25	40
26	39
27	39
28	38
29	38
30	38
31	38

	Dry (%)	Comfortable (%)	Humid (%)
1	56	44	0
2	56	44	0
3	56	44	0
4	56	43	1
5	56	43	1
6	56	43	1
7	57	42	1
8	57	42	1
9	57	42	1
10	58	41	1
11	57	41	2
12	58	40	2
13	58	40	2
14	59	39	2
15	59	39	2
16	60	38	2
17	60	38	2
18	61	37	2
19	62	36	2
20	63	35	2
21	63	35	2
22	64	34	2
23	65	33	2
24	65	33	2
25	66	32	2
26	66	32	2
27	68	31	1
28	68	31	1
29	68	31	1
30	69	30	1
31	69	30	1

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

	Clearer (%)	Cloudier (%)
1	37	63
2	37	63
3	37	63
4	37	63
5	38	62
6	38	62
7	37	63
8	37	63
9	37	63
10	37	63
11	38	62
12	38	62
13	38	62
14	40	60
15	40	60
16	40	60
17	40	60
18	40	60
19	40	60
20	41	59
21	41	59
22	42	58
23	43	57
24	43	57
25	42	58
26	42	58
27	42	58
28	42	58
29	42	58
30	41	59
31	41	59

	Rain chance (%)
1	43
2	43
3	43
4	43
5	43
6	43
7	43
8	42
9	42
10	42
11	42
12	42
13	42
14	42
15	42
16	43
17	43
18	43
19	43
20	42
21	42
22	42
23	41
24	41
25	40
26	39
27	39
28	38
29	38
30	38
31	38

	Dry (%)	Comfortable (%)	Humid (%)
1	56	44	0
2	56	44	0
3	56	44	0
4	56	43	1
5	56	43	1
6	56	43	1
7	57	42	1
8	57	42	1
9	57	42	1
10	58	41	1
11	57	41	2
12	58	40	2
13	58	40	2
14	59	39	2
15	59	39	2
16	60	38	2
17	60	38	2
18	61	37	2
19	62	36	2
20	63	35	2
21	63	35	2
22	64	34	2
23	65	33	2
24	65	33	2
25	66	32	2
26	66	32	2
27	68	31	1
28	68	31	1
29	68	31	1
30	69	30	1
31	69	30	1