Dorchester weather in July

In July, Dorchester sees average daytime highs of 20°C and overnight lows near 13°C, with 57 mm of rain across 10.8 wet days and about 15.8 hours of daylight. It is the 1st-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 18% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 16 h 12 min at the start of July to 15 h 12 min by month's end. Set against the rest of the year, July is Dorchester's 1st-clearest and 11th-windiest month. For the whole year in context, see Dorchester's year-round climate.

Daytime high
20°
1st warmest
Overnight low
13°
12th coldest
Rainfall
57 mm
10.8 wet days
Daylight
15 h 48 min
4:20 AM – 8:11 PM
Cloud cover
67%
1st clearest
Wind
14 km/h
11th windiest
Solar energy
5.34 kWh/m²
Travel score
6.2
out of 10

Dorchester is town in Dorset, England, UK.

Density
3,431/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 20°C through the month.

A typical July day in Dorchester reaches about 20°C in the afternoon and slips back to 13°C overnight — a 7°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, 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)
12013
22013
32013
42013
52013
62013
72013
82013
92013
102013
112013
122013
132013
142013
152113
162113
172113
182113
192113
202113
212113
222114
232114
242114
252114
262114
272114
282114
292114
302114
312114

How July really feels in Dorchester

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.

Dorchester weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 70120.38.31.2
Feb / 5610.50.69.71.3
Mar10° / 5310.10.411.52.3
Apr13° / 6311.50.113.53.3
May16° / 6311.1015.24.6
Jun18° / 11°6010.8016.25.7
Jul20° / 13°5710.8015.86.2
Aug20° / 13°7110.7014.36.1
Sep18° / 11°569.3012.45.7
Oct14° / 8112.3010.43.9
Nov11° / 7712.208.72.4
Dec / 7611.70.27.81.5

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 63%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13367
23268
33268
43367
53367
63466
73466
83466
93565
103565
113664
123763
133862
143862
153961
164060
174060
184159
194159
204159
214159
224159
234060
244159
253961
263961
274060
283961
293961
303961
313862

Chance of precipitation in July

Any precipitation

Dorchester gets around 57 mm of rain over 10.8 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 34% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
338
438
537
637
737
836
935
1035
1134
1233
1333
1432
1532
1631
1731
1831
1931
2032
2132
2232
2333
2433
2534
2634
2735
2835
2935
3036
3136

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the comfortable band about 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
158384
257394
356404
455414
554424
653425
752435
852435
951445
1050446
1150446
1249447
1348457
1447458
1546468
1645468
1744479
1843489
19424910
20404910
21395011
22385111
23375211
24365311
25355312
26355312
27345412
28335512
29335413
30335413
31335314

Wind in July

Winds average 14 km/h in July.

Across July, daily wind ranges from about 14 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
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 July

DaylightNight

Daylight runs from about 16 h 12 min at the start of July to 15 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over July. Sunrise moves from 4:07 AM to 4:39 AM, and sunset from 8:19 PM to 7:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.24:078:19
216.24:078:19
316.24:088:19
416.24:098:19
516.14:098:18
616.14:108:18
716.14:118:17
816.14:128:17
916.14:138:16
1016.04:148:16
1116.04:158:15
1216.04:168:14
1315.94:178:13
1415.94:188:13
1515.94:198:12
1615.84:208:11
1715.84:218:10
1815.84:228:09
1915.74:238:08
2015.74:258:07
2115.74:268:06
2215.64:278:04
2315.64:288:03
2415.54:308:02
2515.54:318:01
2615.54:327:59
2715.44:347:58
2815.44:357:57
2915.34:377:55
3015.34:387:54
3115.24:397:52

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.34 kWh/m².

For context, solar energy here swings from a low near 0.71 kWh/m² to a high of 5.56 kWh/m² in June across the year — July's 5.34 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in July

Is July a good time to visit Dorchester?

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
3.5
Beach & pool
1st-best month of the year

July is a reasonable time to visit Dorchester for sightseeing.

What to pack for Dorchester in July

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

In July, Dorchester sees daytime highs around 20°C and nights near 13°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Dorchester in July

The nearest coast averages about 16°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 17°C and coldest in March near 8°C.

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

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan10Bracing
Feb9Bracing
Mar8Bracing
Apr10Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep17Cool
Oct16Cool
Nov13Bracing
Dec11Bracing

UV index in Dorchester 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 Dorchester 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 Dorchester?

Dorchester sits at 50.7°N, 2.4°W, 55 m above sea level, in United Kingdom. The nearest listed city is Weymouth, 12 km away.

Topography around Dorchester

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

Within 3 km, the terrain around Dorchester has only modest variations in elevation — a maximum elevation change of 75 m around an average of 74 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 272 m; within 80 km, significant variations in elevation — a maximum elevation change of 408 m.

The land around Dorchester is covered by grassland (42%) and cropland (30%) within 3 km, grassland (42%) and cropland (27%) within 16 km, and grassland (36%) and water (35%) within 80 km.

3 km
75 m
16 km
272 m
80 km
408 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Weymouth 12 km · Yeovil 29 km · Poole 32 km · Wimborne Minster 33 km · Ferndown 39 km · Bournemouth 39 km · Christchurch 46 km · New Milton 54 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 Dorchester (50.7167°, -2.4333°, elevation 55 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).