Devizes weather in August

In August, Devizes sees average daytime highs of 20°C and overnight lows near 13°C, with 72 mm of rain across 11.3 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 12 min at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is Devizes's 2nd-clearest and 11th-windiest month. For the whole year in context, see Devizes's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
13°
11th coldest
Rainfall
72 mm
11.3 wet days
Daylight
14 h 24 min
5:00 AM – 7:24 PM
Cloud cover
69%
2nd clearest
Wind
14 km/h
11th windiest
Solar energy
4.17 kWh/m²
Travel score
6.0
out of 10

Devizes is town in Wiltshire, England.

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

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 Devizes reaches about 20°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 24°C. Set against its neighbours, August runs on par with July and about 3°C warmer than September.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12113
22113
32113
42113
52113
62113
72113
82113
92113
102113
112113
122113
132113
142113
152013
162013
172013
182013
192012
202012
212012
222012
232012
242012
252012
262012
272012
282012
291912
301912
311911

How August really feels in Devizes

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
0
heat index over the day's high
Days feeling ≤ C
0
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.

Devizes 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6912.50.78.20.9
Feb / 5310.50.89.61.1
Mar10° / 5410.30.611.52.2
Apr13° / 6111.50.213.53.3
May16° / 6311.2015.34.6
Jun19° / 11°5910.7016.35.6
Jul21° / 13°6210.9015.96.2
Aug20° / 13°7211.3014.46.0
Sep18° / 10°559.5012.45.6
Oct14° / 7411.8010.43.8
Nov10° / 7412.20.18.62.2
Dec / 7211.60.77.71.2

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%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43763
53763
63664
73565
83565
93466
103466
113565
123565
133565
143565
153565
163565
173466
183565
193565
203565
213565
223565
233466
243466
253367
263367
273268
283367
293268
303169
313169

Chance of precipitation in August

Any precipitation

Devizes gets around 72 mm of rain over 11.3 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 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
237
337
437
537
637
737
837
936
1036
1136
1236
1337
1437
1537
1638
1738
1838
1939
2039
2138
2238
2337
2436
2535
2635
2734
2833
2932
3031
3130

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 56% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
148439
2484210
3494110
4494011
5503911
6513811
7513712
8523612
9523612
10533512
11533512
12543412
13543412
14543412
15553411
16553411
17553411
18563410
19563410
2058339
2158339
2258339
2360328
2461318
2562317
2663307
2763307
2865296
2965296
3066295
3167285

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.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 12 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 108 minutes over August. Sunrise moves from 4:37 AM to 5:25 AM, and sunset from 7:51 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:377:51
215.24:387:50
315.14:407:48
415.14:417:46
515.04:437:45
615.04:447:43
714.94:467:41
814.94:477:39
914.84:497:38
1014.84:517:36
1114.74:527:34
1214.64:547:32
1314.64:557:30
1414.54:577:28
1514.54:597:26
1614.45:007:24
1714.35:027:22
1814.35:037:20
1914.25:057:18
2014.25:077:16
2114.15:087:14
2214.05:107:11
2314.05:127:09
2413.95:137:07
2513.85:157:05
2613.85:167:03
2713.75:187:00
2813.65:206:58
2913.65:216:56
3013.55:236:54
3113.45:256:51

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.17 kWh/m².

For context, solar energy here swings from a low near 0.67 kWh/m² to a high of 5.24 kWh/m² in June across the year — August's 4.17 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.4Bright
124.3Bright
134.3Bright
144.3Bright
154.2Bright
164.2Bright
174.2Bright
184.1Bright
194.1Bright
204.0Bright
214.0Bright
224.0Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.7Moderate
303.7Moderate
313.7Moderate
Planning a trip in August

Is August a good time to visit Devizes?

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
3.3
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Devizes for sightseeing.

What to pack for Devizes in August

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

In August, Devizes sees daytime highs around 20°C and nights near 13°C. Worth packing: rain gear. About 11 days see rain.

rain gear

Sea temperature near Devizes 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 at the nearest coast (about 61 km away) is warmest in August at about 18°C and coldest in February near 7°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan8Bracing
Feb7Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun15Cool
Jul18Cool
Aug18Cool
Sep17Cool
Oct15Bracing
Nov12Bracing
Dec9Bracing

UV index in Devizes 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 Devizes peaks around August 13 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug7High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Devizes?

Devizes sits at 51.4°N, 2.0°W, 130 m above sea level, in United Kingdom. The nearest listed city is Calne, 10 km away.

Topography around Devizes

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

Within 3 km, the terrain around Devizes has only modest variations in elevation — a maximum elevation change of 175 m around an average of 111 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 265 m; within 80 km, significant variations in elevation — a maximum elevation change of 333 m.

The land around Devizes is covered by cropland (37%), grassland (32%) and trees (21%) within 3 km, grassland (53%) and cropland (32%) within 16 km, and grassland (43%) and cropland (28%) within 80 km.

3 km
175 m
16 km
265 m
80 km
333 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Calne 10 km · Melksham 10 km · Chippenham 15 km · Trowbridge 15 km · Neston 16 km · Westbury 17 km · Warminster 21 km · Bath 26 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
Christian 60%none 26%Muslim 4%other 2%

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 Devizes (51.3508°, -1.9942°, elevation 130 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).