St Austell weather in May

In May, St Austell sees average daytime highs of 14°C and overnight lows near 9°C, with 63 mm of rain across 11.4 wet days and about 15.2 hours of daylight. It is the 5th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 16°C by the end. The sky is clear or mostly clear about 17% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 24 min at the start of May to 15 h 48 min by month's end. Set against the rest of the year, May is St Austell's 2nd-clearest and 8th-windiest month. For the whole year in context, see St Austell's year-round climate.

Daytime high: 14°; 5th warmest
Overnight low: 9°; 7th coldest
Rainfall: 63 mm; 11.4 wet days
Daylight: 15 h 12 min; 4:39 AM – 7:52 PM
Cloud cover: 68%; 2nd clearest
Wind: 18 km/h; 8th windiest
Solar energy: 5.26 kWh/m²
Travel score: 4.0; out of 10

St Austell is town in Cornwall, England, UK.

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

← April St Austell year-round climate June →Best places to visit in May

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 16°C by the end.

A typical May day in St Austell reaches about 14°C in the afternoon and slips back to 9°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, May runs about 3°C warmer than April and about 2°C cooler than June.

	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)	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15	15	15	15	15	16	16	16	16
Avg low (°C)	8	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	11	11	11	11

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

St Austell weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, 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 (%)	36	36	35	35	35	36	35	35	35	36	36	35	34	34	34	34	35	34	34	33	33	33	33	34	34	33	33	34	34	34	35
Cloudier (%)	64	64	65	65	65	64	65	65	65	64	64	65	66	66	66	66	65	66	66	67	67	67	67	66	66	67	67	66	66	66	65

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

Chance of precipitation in May

Any precipitation

St Austell gets around 63 mm of rain over 11.4 wet days in May. 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 42% 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 (%)	42	41	41	40	39	39	38	38	38	38	38	38	38	38	38	38	38	37	37	37	37	37	37	37	37	37	38	38	38	39	39

	Rain chance (%)
1	42
2	41
3	41
4	40
5	39
6	39
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	38
17	38
18	37
19	37
20	37
21	37
22	37
23	37
24	37
25	37
26	37
27	38
28	38
29	38
30	39
31	39

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 97% 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 (%)	100	99	99	99	99	99	98	98	98	98	98	98	97	97	97	97	97	97	97	96	96	96	95	95	95	94	94	93	93	92	91
Comfortable (%)	0	1	1	1	1	1	2	2	2	2	2	2	3	3	3	3	3	3	3	4	4	4	5	5	5	6	6	7	7	8	9

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	98	2
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	97	3
14	97	3
15	97	3
16	97	3
17	97	3
18	97	3
19	97	3
20	96	4
21	96	4
22	96	4
23	95	5
24	95	5
25	95	5
26	94	6
27	94	6
28	93	7
29	93	7
30	92	8
31	91	9

Wind in May

Winds average 18 km/h in May.

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

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 24 min at the start of May to 15 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over May. Sunrise moves from 5:04 AM to 4:22 AM, and sunset from 7:29 PM to 8:11 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)	14.4	14.5	14.5	14.6	14.6	14.7	14.8	14.8	14.9	14.9	15.0	15.0	15.1	15.1	15.2	15.2	15.3	15.3	15.4	15.4	15.4	15.5	15.5	15.6	15.6	15.6	15.7	15.7	15.8	15.8	15.8
Sunrise (AM)	5:04	5:02	5:00	4:58	4:56	4:55	4:53	4:51	4:50	4:48	4:46	4:45	4:43	4:42	4:40	4:39	4:37	4:36	4:35	4:33	4:32	4:31	4:30	4:29	4:27	4:26	4:25	4:24	4:23	4:23	4:22
Sunset (PM)	7:29	7:31	7:32	7:34	7:35	7:37	7:38	7:40	7:41	7:43	7:45	7:46	7:47	7:49	7:50	7:52	7:53	7:55	7:56	7:58	7:59	8:00	8:02	8:03	8:04	8:05	8:07	8:08	8:09	8:10	8:11

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.4	5:04	7:29
2	14.5	5:02	7:31
3	14.5	5:00	7:32
4	14.6	4:58	7:34
5	14.6	4:56	7:35
6	14.7	4:55	7:37
7	14.8	4:53	7:38
8	14.8	4:51	7:40
9	14.9	4:50	7:41
10	14.9	4:48	7:43
11	15.0	4:46	7:45
12	15.0	4:45	7:46
13	15.1	4:43	7:47
14	15.1	4:42	7:49
15	15.2	4:40	7:50
16	15.2	4:39	7:52
17	15.3	4:37	7:53
18	15.3	4:36	7:55
19	15.4	4:35	7:56
20	15.4	4:33	7:58
21	15.4	4:32	7:59
22	15.5	4:31	8:00
23	15.5	4:30	8:02
24	15.6	4:29	8:03
25	15.6	4:27	8:04
26	15.6	4:26	8:05
27	15.7	4:25	8:07
28	15.7	4:24	8:08
29	15.8	4:23	8:09
30	15.8	4:23	8:10
31	15.8	4:22	8:11

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.26 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 — May's 5.26 kWh/m² sits near the top of that range.

	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	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.4
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	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	4.9	Bright
2	4.9	Bright
3	4.9	Bright
4	5.0	Bright
5	5.0	Bright
6	5.0	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.1	Bright
11	5.2	Bright
12	5.2	Bright
13	5.2	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.3	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.3	Bright
24	5.3	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.4	Bright
29	5.4	Bright
30	5.4	Bright
31	5.4	Bright

Planning a trip in May

Is May a good time to visit St Austell?

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

4.0

Sightseeing

5th-best month of the year

0.1

Beach & pool

5th-best month of the year

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

What to pack for St Austell in May

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

In May, St Austell sees daytime highs around 14°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near St Austell in May

The nearest coast averages about 12°C in May — 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 May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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

← April St Austell year-round climate June →Best places to visit in May

May 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	13	8
2	13	8
3	13	8
4	13	8
5	13	9
6	13	9
7	14	9
8	14	9
9	14	9
10	14	9
11	14	9
12	14	9
13	14	9
14	14	9
15	14	9
16	14	9
17	14	9
18	15	10
19	15	10
20	15	10
21	15	10
22	15	10
23	15	10
24	15	10
25	15	10
26	15	10
27	15	10
28	16	11
29	16	11
30	16	11
31	16	11

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

	Rain chance (%)
1	42
2	41
3	41
4	40
5	39
6	39
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	38
17	38
18	37
19	37
20	37
21	37
22	37
23	37
24	37
25	37
26	37
27	38
28	38
29	38
30	39
31	39

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	98	2
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	97	3
14	97	3
15	97	3
16	97	3
17	97	3
18	97	3
19	97	3
20	96	4
21	96	4
22	96	4
23	95	5
24	95	5
25	95	5
26	94	6
27	94	6
28	93	7
29	93	7
30	92	8
31	91	9

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

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

	Rain chance (%)
1	42
2	41
3	41
4	40
5	39
6	39
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	38
17	38
18	37
19	37
20	37
21	37
22	37
23	37
24	37
25	37
26	37
27	38
28	38
29	38
30	39
31	39

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	98	2
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	97	3
14	97	3
15	97	3
16	97	3
17	97	3
18	97	3
19	97	3
20	96	4
21	96	4
22	96	4
23	95	5
24	95	5
25	95	5
26	94	6
27	94	6
28	93	7
29	93	7
30	92	8
31	91	9

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

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

	Rain chance (%)
1	42
2	41
3	41
4	40
5	39
6	39
7	38
8	38
9	38
10	38
11	38
12	38
13	38
14	38
15	38
16	38
17	38
18	37
19	37
20	37
21	37
22	37
23	37
24	37
25	37
26	37
27	38
28	38
29	38
30	39
31	39

	Dry (%)	Comfortable (%)
1	100	0
2	99	1
3	99	1
4	99	1
5	99	1
6	99	1
7	98	2
8	98	2
9	98	2
10	98	2
11	98	2
12	98	2
13	97	3
14	97	3
15	97	3
16	97	3
17	97	3
18	97	3
19	97	3
20	96	4
21	96	4
22	96	4
23	95	5
24	95	5
25	95	5
26	94	6
27	94	6
28	93	7
29	93	7
30	92	8
31	91	9