Swindon weather in July

In July, Swindon sees average daytime highs of 21°C and overnight lows near 13°C, with 59 mm of rain across 11 wet days and about 15.9 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 21°C through the month. The sky is clear or mostly clear about 15% of the time in July, and the air most often feels dry.

Daylight stretches from about 16 h 24 min at the start of July to 15 h 18 min by month's end. Set against the rest of the year, July is Swindon's 1st-clearest and 11th-windiest month. For the whole year in context, see Swindon's year-round climate.

Daytime high
21°
1st warmest
Overnight low
13°
12th coldest
Rainfall
59 mm
11 wet days
Daylight
16 hours
4:13 AM – 8:12 PM
Cloud cover
69%
1st clearest
Wind
14 km/h
11th windiest
Solar energy
4.96 kWh/m²
Travel score
6.2
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.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 21°C through the month.

A typical July 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 26°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12012
22012
32012
42012
52012
62012
72012
82112
92112
102113
112113
122113
132113
142113
152113
162113
172113
182113
192113
202113
212113
222113
232113
242113
252113
262113
272113
282113
292113
302113
312113

How July really feels in Swindon

Once humidity and wind are folded in, July 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

July 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 July compares with the rest of the year at a glance. July is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6211.518.10.9
Feb / 479.819.61.1
Mar10° / 5010.30.811.52.1
Apr13° / 5711.40.213.53.3
May16° / 6111.2015.34.6
Jun19° / 11°5610.4016.35.7
Jul21° / 13°5911015.96.2
Aug21° / 13°6510.8014.46.1
Sep18° / 10°549.4012.45.6
Oct14° / 6911.3010.43.8
Nov10° / 68120.18.62.1
Dec / 6511.40.87.71.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of July, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53070
63169
73169
83169
93169
103169
113169
123268
133367
143367
153466
163565
173565
183664
193664
203664
213763
223763
233763
243664
253664
263664
273664
283565
293565
303565
313664

Chance of precipitation in July

Any precipitation

Swindon gets around 59 mm of rain over 11 wet days in July. 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 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
437
537
637
737
837
937
1036
1136
1235
1335
1434
1534
1633
1733
1832
1932
2032
2132
2233
2333
2433
2534
2634
2735
2835
2935
3036
3136

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 60% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
171263
270273
369283
468293
566313
665323
765323
864333
963343
1062344
1162344
1262344
1361345
1461345
1561345
1661345
1760346
1859356
1959356
2058366
2157367
2256377
2356377
2455387
2555387
2654397
2754397
2852408
2952408
3052408
3151409

Wind in July

Winds average 14 km/h in July.

Across July, 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
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 24 min at the start of July to 15 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over July. Sunrise moves from 4:00 AM to 4:34 AM, and sunset from 8:21 PM to 7:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.44:008:21
216.34:008:21
316.34:018:21
416.34:028:20
516.34:038:20
616.34:038:19
716.24:048:19
816.24:058:18
916.24:068:18
1016.24:078:17
1116.14:088:16
1216.14:098:16
1316.14:108:15
1416.04:118:14
1516.04:128:13
1616.04:138:12
1715.94:158:11
1815.94:168:10
1915.94:178:09
2015.84:188:08
2115.84:208:07
2215.74:218:05
2315.74:228:04
2415.74:248:03
2515.64:258:02
2615.64:268:00
2715.54:287:59
2815.54:297:57
2915.44:317:56
3015.44:327:54
3115.34:347:53

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 4.96 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 — July's 4.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
204.9Bright
214.9Bright
224.9Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.8Bright
294.7Bright
304.7Bright
314.7Bright
Planning a trip in July

Is July a good time to visit Swindon?

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

6.2
Sightseeing
1st-best month of the year
3.7
Beach & pool
1st-best month of the year

July is a reasonable time to visit Swindon for sightseeing.

What to pack for Swindon in July

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

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

rain gearsun protection

UV index in Swindon in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 11UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
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
16 km
218 m
80 km
419 m
treesgrasslandcroplandartificial surfaceswater
July 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
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 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).