Swindon weather in August

In August, Swindon sees average daytime highs of 21°C and overnight lows near 13°C, with 65 mm of rain across 10.8 wet days and about 14.4 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 19°C by the end. The sky is clear or mostly clear about 14% of the time in August, and the air most often feels dry.

Daylight stretches from about 15 h 18 min at the start of August to 13 h 30 min by month's end. Set against the rest of the year, August is Swindon's 2nd-clearest and 11th-windiest month. For the whole year in context, see Swindon's year-round climate.

Daytime high: 21°; 2nd warmest
Overnight low: 13°; 11th coldest
Rainfall: 65 mm; 10.8 wet days
Daylight: 14 h 24 min; 4:59 AM – 7:24 PM
Cloud cover: 69%; 2nd clearest
Wind: 14 km/h; 11th windiest
Solar energy: 4.14 kWh/m²
Travel score: 6.1; out of 10

Swindon is town in Wiltshire, England, United Kingdom.

Density: 5,042/km²; people per km²

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

← July Swindon 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 21°C in the first days to 19°C by the end.

A typical August day in Swindon reaches about 21°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 17°C and 25°C. Set against its neighbours, August runs on par with July and about 3°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)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	20	20	20	20	20	20	20	20	20	20	20	20	19	19
Avg low (°C)	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	13	12	12	12	12	12	12	12	12	12	12	12	12

	Avg high (°C)	Avg low (°C)
1	21	13
2	21	13
3	21	13
4	21	13
5	21	13
6	21	13
7	21	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	20	13
19	20	13
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	20	12
27	20	12
28	20	12
29	20	12
30	19	12
31	19	12

How August really feels in Swindon

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.

Swindon 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	7° / 2°	62	11.5	1	8.1	0.9
Feb	8° / 2°	47	9.8	1	9.6	1.1
Mar	10° / 4°	50	10.3	0.8	11.5	2.1
Apr	13° / 5°	57	11.4	0.2	13.5	3.3
May	16° / 8°	61	11.2	0	15.3	4.6
Jun	19° / 11°	56	10.4	0	16.3	5.7
Jul	21° / 13°	59	11	0	15.9	6.2
Aug	21° / 13°	65	10.8	0	14.4	6.1
Sep	18° / 10°	54	9.4	0	12.4	5.6
Oct	14° / 8°	69	11.3	0	10.4	3.8
Nov	10° / 5°	68	12	0.1	8.6	2.1
Dec	8° / 3°	65	11.4	0.8	7.7	1.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 14% 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 67%.

	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 (%)	35	34	34	34	33	33	33	33	33	33	33	33	33	33	34	32	32	33	33	33	33	33	33	32	33	33	32	32	31	31	31
Cloudier (%)	65	66	66	66	67	67	67	67	67	67	67	67	67	67	66	68	68	67	67	67	67	67	67	68	67	67	68	68	69	69	69

	Clearer (%)	Cloudier (%)
1	35	65
2	34	66
3	34	66
4	34	66
5	33	67
6	33	67
7	33	67
8	33	67
9	33	67
10	33	67
11	33	67
12	33	67
13	33	67
14	33	67
15	34	66
16	32	68
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	33	67
24	32	68
25	33	67
26	33	67
27	32	68
28	32	68
29	31	69
30	31	69
31	31	69

Chance of precipitation in August

Any precipitation

Swindon gets around 65 mm of rain over 10.8 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 35% and peaks near 38% 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 (%)	36	36	36	36	35	35	35	35	35	35	35	36	36	36	37	37	37	38	38	38	38	37	36	36	35	34	33	32	31	30	30

	Rain chance (%)
1	36
2	36
3	36
4	36
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	36
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	36
24	36
25	35
26	34
27	33
28	32
29	31
30	30
31	30

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 59% 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	51	52	53	53	53	54	54	55	55	55	56	56	56	57	58	58	58	60	60	61	62	63	64	65	66	67	67	68	69	70
Comfortable (%)	39	39	38	37	36	36	35	35	34	34	34	33	33	33	32	32	32	32	31	31	31	30	29	29	28	28	27	27	27	26	26
Humid (%)	9	10	10	10	11	11	11	11	11	11	11	11	11	11	11	10	10	10	9	9	8	8	8	7	7	6	6	6	5	5	4

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	51	39	10
3	52	38	10
4	53	37	10
5	53	36	11
6	53	36	11
7	54	35	11
8	54	35	11
9	55	34	11
10	55	34	11
11	55	34	11
12	56	33	11
13	56	33	11
14	56	33	11
15	57	32	11
16	58	32	10
17	58	32	10
18	58	32	10
19	60	31	9
20	60	31	9
21	61	31	8
22	62	30	8
23	63	29	8
24	64	29	7
25	65	28	7
26	66	28	6
27	67	27	6
28	67	27	6
29	68	27	5
30	69	26	5
31	70	26	4

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 14 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)	13	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze

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

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 18 min at the start of August to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over August. Sunrise moves from 4:35 AM to 5:23 AM, and sunset from 7:51 PM to 6:51 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)	15.3	15.2	15.2	15.1	15.1	15.0	14.9	14.9	14.8	14.8	14.7	14.7	14.6	14.5	14.5	14.4	14.4	14.3	14.2	14.2	14.1	14.0	14.0	13.9	13.8	13.8	13.7	13.7	13.6	13.5	13.5
Sunrise (AM)	4:35	4:37	4:38	4:40	4:41	4:43	4:44	4:46	4:48	4:49	4:51	4:52	4:54	4:56	4:57	4:59	5:00	5:02	5:04	5:05	5:07	5:09	5:10	5:12	5:14	5:15	5:17	5:18	5:20	5:22	5:23
Sunset (PM)	7:51	7:50	7:48	7:46	7:45	7:43	7:41	7:39	7:37	7:35	7:34	7:32	7:30	7:28	7:26	7:24	7:22	7:20	7:17	7:15	7:13	7:11	7:09	7:07	7:04	7:02	7:00	6:58	6:56	6:53	6:51

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	15.3	4:35	7:51
2	15.2	4:37	7:50
3	15.2	4:38	7:48
4	15.1	4:40	7:46
5	15.1	4:41	7:45
6	15.0	4:43	7:43
7	14.9	4:44	7:41
8	14.9	4:46	7:39
9	14.8	4:48	7:37
10	14.8	4:49	7:35
11	14.7	4:51	7:34
12	14.7	4:52	7:32
13	14.6	4:54	7:30
14	14.5	4:56	7:28
15	14.5	4:57	7:26
16	14.4	4:59	7:24
17	14.4	5:00	7:22
18	14.3	5:02	7:20
19	14.2	5:04	7:17
20	14.2	5:05	7:15
21	14.1	5:07	7:13
22	14.0	5:09	7:11
23	14.0	5:10	7:09
24	13.9	5:12	7:07
25	13.8	5:14	7:04
26	13.8	5:15	7:02
27	13.7	5:17	7:00
28	13.7	5:18	6:58
29	13.6	5:20	6:56
30	13.5	5:22	6:53
31	13.5	5:23	6:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.14 kWh/m².

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.19 kWh/m² in June across the year — August's 4.14 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)	4.6	4.6	4.6	4.5	4.5	4.5	4.5	4.4	4.4	4.3	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	3.9	3.8	3.8	3.8	3.7	3.7	3.7	3.6
Level	Bright	Bright	Bright	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

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

Planning a trip in August

Is August a good time to visit Swindon?

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

6.1

Sightseeing

2nd-best month of the year

3.5

Beach & pool

2nd-best month of the year

August is a reasonable time to visit Swindon for sightseeing.

What to pack for Swindon in August

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

In August, Swindon sees daytime highs around 21°C and nights near 13°C. Worth packing: rain gear. About 11 days see rain.

rain gear

UV index in Swindon 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 Swindon peaks around August 11 at about 6 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near January 1 at about 1 (low).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	3	4	6	6	6	6	4	2	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	3	Moderate
Apr	4	Moderate
May	6	High
Jun	6	High
Jul	6	High
Aug	6	High
Sep	4	Moderate
Oct	2	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Swindon?

Swindon sits at 51.6°N, 1.8°W, 113 m above sea level, in United Kingdom. The nearest listed city is Calne, 20 km away.

Topography around Swindon

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

Within 3 km, the terrain around Swindon has only modest variations in elevation — a maximum elevation change of 64 m around an average of 106 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 218 m; within 80 km, significant variations in elevation — a maximum elevation change of 419 m.

The land around Swindon is covered by artificial surfaces (49%), trees (26%) and grassland (23%) within 3 km, grassland (42%) and cropland (35%) within 16 km, and grassland (43%) and cropland (32%) within 80 km.

3 km

64 m

artificial surfaces 49%

16 km

218 m

grassland 42%

80 km

419 m

grassland 43%

treesgrasslandcroplandartificial surfaceswater

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

August weather nearby: Calne 20 km · Cirencester 22 km · Carterton 26 km · Chippenham 26 km · Devizes 27 km · Melksham 32 km · Witney 32 km · Neston 33 km

United Kingdom travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type D / G / M; 230 V · 50 Hz
Prices: ≈ 89% of US; price level, 2025
GDP per capita: $57,602; 2025
Happiness: 6.7 / 10; World Happiness, 2025
Safe drinking water: 100%; of population, 2024
Homicide rate: 1.1; per 100k, 2021
Road deaths: 3.2; per 100k/yr, 2019
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 Swindon (51.558°, -1.7812°, elevation 113 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. 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	21	13
2	21	13
3	21	13
4	21	13
5	21	13
6	21	13
7	21	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	20	13
19	20	13
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	20	12
27	20	12
28	20	12
29	20	12
30	19	12
31	19	12

	Clearer (%)	Cloudier (%)
1	35	65
2	34	66
3	34	66
4	34	66
5	33	67
6	33	67
7	33	67
8	33	67
9	33	67
10	33	67
11	33	67
12	33	67
13	33	67
14	33	67
15	34	66
16	32	68
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	33	67
24	32	68
25	33	67
26	33	67
27	32	68
28	32	68
29	31	69
30	31	69
31	31	69

	Rain chance (%)
1	36
2	36
3	36
4	36
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	36
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	36
24	36
25	35
26	34
27	33
28	32
29	31
30	30
31	30

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	51	39	10
3	52	38	10
4	53	37	10
5	53	36	11
6	53	36	11
7	54	35	11
8	54	35	11
9	55	34	11
10	55	34	11
11	55	34	11
12	56	33	11
13	56	33	11
14	56	33	11
15	57	32	11
16	58	32	10
17	58	32	10
18	58	32	10
19	60	31	9
20	60	31	9
21	61	31	8
22	62	30	8
23	63	29	8
24	64	29	7
25	65	28	7
26	66	28	6
27	67	27	6
28	67	27	6
29	68	27	5
30	69	26	5
31	70	26	4

	Avg high (°C)	Avg low (°C)
1	21	13
2	21	13
3	21	13
4	21	13
5	21	13
6	21	13
7	21	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	20	13
19	20	13
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	20	12
27	20	12
28	20	12
29	20	12
30	19	12
31	19	12

	Clearer (%)	Cloudier (%)
1	35	65
2	34	66
3	34	66
4	34	66
5	33	67
6	33	67
7	33	67
8	33	67
9	33	67
10	33	67
11	33	67
12	33	67
13	33	67
14	33	67
15	34	66
16	32	68
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	33	67
24	32	68
25	33	67
26	33	67
27	32	68
28	32	68
29	31	69
30	31	69
31	31	69

	Rain chance (%)
1	36
2	36
3	36
4	36
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	36
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	36
24	36
25	35
26	34
27	33
28	32
29	31
30	30
31	30

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	51	39	10
3	52	38	10
4	53	37	10
5	53	36	11
6	53	36	11
7	54	35	11
8	54	35	11
9	55	34	11
10	55	34	11
11	55	34	11
12	56	33	11
13	56	33	11
14	56	33	11
15	57	32	11
16	58	32	10
17	58	32	10
18	58	32	10
19	60	31	9
20	60	31	9
21	61	31	8
22	62	30	8
23	63	29	8
24	64	29	7
25	65	28	7
26	66	28	6
27	67	27	6
28	67	27	6
29	68	27	5
30	69	26	5
31	70	26	4

	Avg high (°C)	Avg low (°C)
1	21	13
2	21	13
3	21	13
4	21	13
5	21	13
6	21	13
7	21	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	20	13
19	20	13
20	20	12
21	20	12
22	20	12
23	20	12
24	20	12
25	20	12
26	20	12
27	20	12
28	20	12
29	20	12
30	19	12
31	19	12

	Clearer (%)	Cloudier (%)
1	35	65
2	34	66
3	34	66
4	34	66
5	33	67
6	33	67
7	33	67
8	33	67
9	33	67
10	33	67
11	33	67
12	33	67
13	33	67
14	33	67
15	34	66
16	32	68
17	32	68
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	33	67
24	32	68
25	33	67
26	33	67
27	32	68
28	32	68
29	31	69
30	31	69
31	31	69

	Rain chance (%)
1	36
2	36
3	36
4	36
5	35
6	35
7	35
8	35
9	35
10	35
11	35
12	36
13	36
14	36
15	37
16	37
17	37
18	38
19	38
20	38
21	38
22	37
23	36
24	36
25	35
26	34
27	33
28	32
29	31
30	30
31	30

	Dry (%)	Comfortable (%)	Humid (%)
1	52	39	9
2	51	39	10
3	52	38	10
4	53	37	10
5	53	36	11
6	53	36	11
7	54	35	11
8	54	35	11
9	55	34	11
10	55	34	11
11	55	34	11
12	56	33	11
13	56	33	11
14	56	33	11
15	57	32	11
16	58	32	10
17	58	32	10
18	58	32	10
19	60	31	9
20	60	31	9
21	61	31	8
22	62	30	8
23	63	29	8
24	64	29	7
25	65	28	7
26	66	28	6
27	67	27	6
28	67	27	6
29	68	27	5
30	69	26	5
31	70	26	4