St Austell weather in August

In August, St Austell sees average daytime highs of 19°C and overnight lows near 14°C, with 67 mm of rain across 11.1 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 19°C through the month. The sky is clear or mostly clear about 14% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 15 h 06 min at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is St Austell's 6th-clearest and 11th-windiest month. For the whole year in context, see St Austell's year-round climate.

Daytime high: 19°; 1st warmest
Overnight low: 14°; 12th coldest
Rainfall: 67 mm; 11.1 wet days
Daylight: 14 h 18 min; 5:14 AM – 7:32 PM
Cloud cover: 69%; 6th clearest
Wind: 17 km/h; 11th windiest
Solar energy: 4.36 kWh/m²
Travel score: 5.8; out of 10

St Austell is town in Cornwall, England, UK.

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

← July St Austell 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 19°C through the month.

A typical August day in St Austell reaches about 19°C in the afternoon and slips back to 14°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 21°C. Set against its neighbours, August runs on par with July and about 2°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)	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	19	18	18	18	18	18	18
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	13

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

St Austell 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	Daylight (hours)	Travel score
Jan	9° / 6°	86	14.4	8.3	1.6
Feb	9° / 5°	68	11.7	9.7	1.6
Mar	10° / 6°	64	11.8	11.5	2.1
Apr	12° / 7°	66	12.4	13.5	2.9
May	14° / 9°	63	11.4	15.2	4.0
Jun	17° / 12°	63	11.4	16.1	5.1
Jul	19° / 14°	63	10.6	15.7	5.9
Aug	19° / 14°	67	11.1	14.3	5.8
Sep	17° / 13°	58	10.2	12.4	5.4
Oct	14° / 11°	90	13.5	10.5	3.8
Nov	12° / 8°	91	14.4	8.8	2.6
Dec	10° / 6°	91	14	7.9	1.9

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 20% of August, with mostly cloudy or overcast conditions the remaining 66%.

	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 (%)	34	34	34	34	34	34	34	34	34	34	34	34	34	34	34	33	33	33	33	33	33	33	35	35	35	35	35	35	36	36	36
Cloudier (%)	66	66	66	66	66	66	66	66	66	66	66	66	66	66	66	67	67	67	67	67	67	67	65	65	65	65	65	65	64	64	64

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	34	66
13	34	66
14	34	66
15	34	66
16	33	67
17	33	67
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	35	65
24	35	65
25	35	65
26	35	65
27	35	65
28	35	65
29	36	64
30	36	64
31	36	64

Chance of precipitation in August

Any precipitation

St Austell gets around 67 mm of rain over 11.1 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 36% and peaks near 40% 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 (%)	33	33	34	34	34	34	35	35	36	36	37	37	38	38	39	39	40	40	40	40	39	38	37	36	35	34	33	32	32	31	30

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	35
8	35
9	36
10	36
11	37
12	37
13	38
14	38
15	39
16	39
17	40
18	40
19	40
20	40
21	39
22	38
23	37
24	36
25	35
26	34
27	33
28	32
29	32
30	31
31	30

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 47% 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 (%)	32	33	33	34	35	35	36	36	36	37	37	37	37	38	38	38	38	38	38	39	39	40	41	42	43	44	45	45	46	47	49
Comfortable (%)	53	51	51	49	48	48	47	47	46	46	46	46	46	46	47	47	47	48	48	48	48	48	48	48	47	47	47	46	46	45	44
Humid (%)	15	16	16	16	17	17	17	17	17	17	16	16	16	16	15	15	15	14	14	13	12	12	11	10	10	9	9	8	8	7	7

	Dry (%)	Comfortable (%)	Humid (%)
1	32	53	15
2	33	51	16
3	33	51	16
4	34	49	16
5	35	48	17
6	35	48	17
7	36	47	17
8	36	47	17
9	36	46	17
10	37	46	17
11	37	46	16
12	37	46	16
13	37	46	16
14	38	46	16
15	38	47	15
16	38	47	15
17	38	47	15
18	38	48	14
19	38	48	14
20	39	48	13
21	39	48	12
22	40	48	12
23	41	48	11
24	42	48	10
25	43	47	10
26	44	47	9
27	45	47	9
28	45	46	8
29	46	46	8
30	47	45	7
31	49	44	7

Wind in August

Winds average 17 km/h in August.

Across August, daily wind ranges from about 17 km/h on the calmest days to 17 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)	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17
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	17	light breeze
2	17	light breeze
3	17	light breeze
4	17	light breeze
5	17	light breeze
6	17	light breeze
7	17	light breeze
8	17	light breeze
9	17	light breeze
10	17	light breeze
11	17	light breeze
12	17	light breeze
13	17	light breeze
14	17	light breeze
15	17	light breeze
16	17	light breeze
17	17	light breeze
18	17	light breeze
19	17	light breeze
20	17	light breeze
21	17	light breeze
22	17	light breeze
23	17	light breeze
24	17	light breeze
25	17	light breeze
26	17	light breeze
27	17	light breeze
28	17	light breeze
29	17	light breeze
30	17	light breeze
31	17	light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 06 min at the start of August to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 102 minutes over August. Sunrise moves from 4:52 AM to 5:37 AM, and sunset from 7:59 PM to 7:01 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)	15.1	15.1	15.0	15.0	14.9	14.9	14.8	14.8	14.7	14.6	14.6	14.5	14.5	14.4	14.4	14.3	14.3	14.2	14.1	14.1	14.0	14.0	13.9	13.8	13.8	13.7	13.6	13.6	13.5	13.5	13.4
Sunrise (AM)	4:52	4:53	4:54	4:56	4:57	4:59	5:00	5:02	5:03	5:05	5:06	5:08	5:09	5:11	5:12	5:14	5:15	5:17	5:19	5:20	5:22	5:23	5:25	5:26	5:28	5:29	5:31	5:33	5:34	5:36	5:37
Sunset (PM)	7:59	7:57	7:56	7:54	7:52	7:51	7:49	7:47	7:46	7:44	7:42	7:40	7:38	7:36	7:34	7:32	7:30	7:29	7:26	7:24	7:22	7:20	7:18	7:16	7:14	7:12	7:10	7:08	7:05	7:03	7:01

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	15.1	4:52	7:59
2	15.1	4:53	7:57
3	15.0	4:54	7:56
4	15.0	4:56	7:54
5	14.9	4:57	7:52
6	14.9	4:59	7:51
7	14.8	5:00	7:49
8	14.8	5:02	7:47
9	14.7	5:03	7:46
10	14.6	5:05	7:44
11	14.6	5:06	7:42
12	14.5	5:08	7:40
13	14.5	5:09	7:38
14	14.4	5:11	7:36
15	14.4	5:12	7:34
16	14.3	5:14	7:32
17	14.3	5:15	7:30
18	14.2	5:17	7:29
19	14.1	5:19	7:26
20	14.1	5:20	7:24
21	14.0	5:22	7:22
22	14.0	5:23	7:20
23	13.9	5:25	7:18
24	13.8	5:26	7:16
25	13.8	5:28	7:14
26	13.7	5:29	7:12
27	13.6	5:31	7:10
28	13.6	5:33	7:08
29	13.5	5:34	7:05
30	13.5	5:36	7:03
31	13.4	5:37	7:01

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.36 kWh/m².

For context, solar energy here swings from a low near 0.73 kWh/m² to a high of 5.47 kWh/m² in June across the year — August's 4.36 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)	4.8	4.8	4.7	4.7	4.7	4.7	4.6	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	4.2	4.1	4.1	4.1	4.0	4.0	4.0	3.9	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	Moderate	Moderate	Moderate	Moderate

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

Planning a trip in August

Is August a good time to visit St Austell?

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

2.4

Beach & pool

1st-best month of the year

August is a reasonable time to visit St Austell for sightseeing.

What to pack for St Austell in August

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

In August, St Austell sees daytime highs around 19°C and nights near 14°C. Worth packing: rain gear. About 11 days see rain.

rain gear

Sea temperature near St Austell in August

The nearest coast averages about 17°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 25 km away) is warmest in August at about 17°C and coldest in March near 9°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)	10	10	9	10	12	14	16	17	16	15	13	11
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	10	Bracing
Feb	10	Bracing
Mar	9	Bracing
Apr	10	Bracing
May	12	Bracing
Jun	14	Bracing
Jul	16	Cool
Aug	17	Cool
Sep	16	Cool
Oct	15	Bracing
Nov	13	Bracing
Dec	11	Bracing

UV index in St Austell in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in St Austell peaks around August 13 at about 7 (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	5	6	6	6	7	5	3	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	5	Moderate
May	6	High
Jun	6	High
Jul	6	High
Aug	7	High
Sep	5	Moderate
Oct	3	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is St Austell?

St Austell sits at 50.3°N, 4.8°W, 73 m above sea level, in United Kingdom. The nearest listed city is Bodmin, 15 km away.

Topography around St Austell

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

Within 3 km, the terrain around St Austell has significant variations in elevation — a maximum elevation change of 266 m around an average of 94 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 362 m; within 80 km, large variations in elevation — a maximum elevation change of 613 m.

The land around St Austell is covered by trees (36%) and grassland (34%) within 3 km, grassland (40%), water (26%) and trees (20%) within 16 km, and water (59%) and grassland (28%) within 80 km.

3 km

266 m

trees 36%

16 km

362 m

grassland 40%

80 km

613 m

water 59%

treesgrasslandcroplandartificial surfacesbare terrainwater

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

August weather nearby: Bodmin 15 km · Truro 22 km · Newquay 23 km · Falmouth 30 km · Redruth 34 km · Saltash 40 km · Camborne 40 km · Plymouth 45 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 St Austell (50.3425°, -4.7744°, elevation 73 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	19	14
2	19	14
3	19	14
4	19	14
5	19	14
6	19	14
7	19	14
8	19	14
9	19	14
10	19	14
11	19	14
12	19	14
13	19	14
14	19	14
15	19	14
16	19	14
17	19	14
18	19	14
19	19	14
20	19	14
21	19	14
22	19	14
23	19	14
24	19	14
25	19	14
26	18	14
27	18	14
28	18	14
29	18	14
30	18	14
31	18	13

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	34	66
13	34	66
14	34	66
15	34	66
16	33	67
17	33	67
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	35	65
24	35	65
25	35	65
26	35	65
27	35	65
28	35	65
29	36	64
30	36	64
31	36	64

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	35
8	35
9	36
10	36
11	37
12	37
13	38
14	38
15	39
16	39
17	40
18	40
19	40
20	40
21	39
22	38
23	37
24	36
25	35
26	34
27	33
28	32
29	32
30	31
31	30

	Dry (%)	Comfortable (%)	Humid (%)
1	32	53	15
2	33	51	16
3	33	51	16
4	34	49	16
5	35	48	17
6	35	48	17
7	36	47	17
8	36	47	17
9	36	46	17
10	37	46	17
11	37	46	16
12	37	46	16
13	37	46	16
14	38	46	16
15	38	47	15
16	38	47	15
17	38	47	15
18	38	48	14
19	38	48	14
20	39	48	13
21	39	48	12
22	40	48	12
23	41	48	11
24	42	48	10
25	43	47	10
26	44	47	9
27	45	47	9
28	45	46	8
29	46	46	8
30	47	45	7
31	49	44	7

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

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	34	66
13	34	66
14	34	66
15	34	66
16	33	67
17	33	67
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	35	65
24	35	65
25	35	65
26	35	65
27	35	65
28	35	65
29	36	64
30	36	64
31	36	64

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	35
8	35
9	36
10	36
11	37
12	37
13	38
14	38
15	39
16	39
17	40
18	40
19	40
20	40
21	39
22	38
23	37
24	36
25	35
26	34
27	33
28	32
29	32
30	31
31	30

	Dry (%)	Comfortable (%)	Humid (%)
1	32	53	15
2	33	51	16
3	33	51	16
4	34	49	16
5	35	48	17
6	35	48	17
7	36	47	17
8	36	47	17
9	36	46	17
10	37	46	17
11	37	46	16
12	37	46	16
13	37	46	16
14	38	46	16
15	38	47	15
16	38	47	15
17	38	47	15
18	38	48	14
19	38	48	14
20	39	48	13
21	39	48	12
22	40	48	12
23	41	48	11
24	42	48	10
25	43	47	10
26	44	47	9
27	45	47	9
28	45	46	8
29	46	46	8
30	47	45	7
31	49	44	7

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

	Clearer (%)	Cloudier (%)
1	34	66
2	34	66
3	34	66
4	34	66
5	34	66
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	34	66
13	34	66
14	34	66
15	34	66
16	33	67
17	33	67
18	33	67
19	33	67
20	33	67
21	33	67
22	33	67
23	35	65
24	35	65
25	35	65
26	35	65
27	35	65
28	35	65
29	36	64
30	36	64
31	36	64

	Rain chance (%)
1	33
2	33
3	34
4	34
5	34
6	34
7	35
8	35
9	36
10	36
11	37
12	37
13	38
14	38
15	39
16	39
17	40
18	40
19	40
20	40
21	39
22	38
23	37
24	36
25	35
26	34
27	33
28	32
29	32
30	31
31	30

	Dry (%)	Comfortable (%)	Humid (%)
1	32	53	15
2	33	51	16
3	33	51	16
4	34	49	16
5	35	48	17
6	35	48	17
7	36	47	17
8	36	47	17
9	36	46	17
10	37	46	17
11	37	46	16
12	37	46	16
13	37	46	16
14	38	46	16
15	38	47	15
16	38	47	15
17	38	47	15
18	38	48	14
19	38	48	14
20	39	48	13
21	39	48	12
22	40	48	12
23	41	48	11
24	42	48	10
25	43	47	10
26	44	47	9
27	45	47	9
28	45	46	8
29	46	46	8
30	47	45	7
31	49	44	7