Colchester weather in July

In July, Colchester sees average daytime highs of 20°C and overnight lows near 14°C, with 58 mm of rain across 11.8 wet days and about 16 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 21°C by the end. The sky is clear or mostly clear about 19% 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 24 min by month's end. Set against the rest of the year, July is Colchester's 1st-clearest and 12th-windiest month. For the whole year in context, see Colchester's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
14°
11th coldest
Rainfall
58 mm
11.8 wet days
Daylight
16 hours
4:01 AM – 8:03 PM
Cloud cover
64%
1st clearest
Wind
15 km/h
12th windiest
Solar energy
5.3 kWh/m²
Travel score
6.1
out of 10

Colchester is city in Essex, England, UK.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 21°C by the end.

A typical July day in Colchester reaches about 20°C in the afternoon and slips back to 14°C overnight — a 6°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, July runs about 3°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11913
21913
32013
42013
52014
62014
72014
82014
92014
102014
112014
122014
132014
142014
152014
162014
172114
182114
192114
202114
212115
222115
232115
242115
252115
262115
272115
282115
292115
302115
312115

How July really feels in Colchester

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.

Colchester weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5712.10.98.10.8
Feb / 469.71.19.60.9
Mar / 4310.20.611.51.9
Apr12° / 4510.4013.63.0
May15° / 5310015.44.4
Jun18° / 12°5710.9016.45.5
Jul20° / 14°5811.80166.1
Aug21° / 14°6410.7014.46.2
Sep18° / 12°5210.3012.45.6
Oct14° / 6411.4010.43.9
Nov10° / 6111.10.28.62.2
Dec / 6211.60.87.61.1

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 61%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23763
33763
43862
53763
63763
73862
83763
93763
103862
113862
123862
133961
143961
153961
163961
173961
184060
194159
204159
214258
224258
234258
244060
254060
264060
274159
284159
294159
304060
314060

Chance of precipitation in July

Any precipitation

Colchester gets around 58 mm of rain over 11.8 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 37% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
239
339
439
539
640
740
839
939
1039
1139
1238
1338
1437
1537
1636
1736
1836
1935
2035
2135
2235
2336
2436
2536
2636
2736
2836
2936
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 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
162326
260346
359356
458366
557376
656386
755396
853407
953407
1052417
1152417
1250428
1350428
1449429
1549429
16484210
17474211
18464212
19464213
20454213
21444214
22434215
23424315
24414316
25404416
26394416
27394516
28384517
29384517
30384517
31374517

Wind in July

Winds average 15 km/h in July, the calmest month.

Across July, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 24 min at the start of July to 15 h 24 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 3:47 AM to 4:22 AM, and sunset from 8:12 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.43:478:12
216.43:488:12
316.43:498:12
416.43:498:11
516.33:508:11
616.33:518:10
716.33:528:10
816.33:538:09
916.33:548:09
1016.23:558:08
1116.23:568:07
1216.23:578:06
1316.13:588:06
1416.13:598:05
1516.14:008:04
1616.04:018:03
1716.04:028:02
1816.04:048:01
1915.94:058:00
2015.94:067:59
2115.84:077:57
2215.84:097:56
2315.74:107:55
2415.74:117:54
2515.74:137:52
2615.64:147:51
2715.64:167:49
2815.54:177:48
2915.54:197:46
3015.44:207:45
3115.44:227:43

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.3 kWh/m².

For context, solar energy here swings from a low near 0.63 kWh/m² to a high of 5.49 kWh/m² in June across the year — July's 5.3 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
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in July

Is July a good time to visit Colchester?

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

6.1
Sightseeing
2nd-best month of the year
3.4
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Colchester for sightseeing.

What to pack for Colchester in July

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

In July, Colchester sees daytime highs around 20°C and nights near 14°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Colchester in July

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

The sea at the nearest coast (about 32 km away) is warmest in August at about 18°C and coldest in February near 6°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
Jan7Bracing
Feb6Bracing
Mar7Bracing
Apr9Bracing
May12Bracing
Jun15Bracing
Jul17Cool
Aug18Cool
Sep17Cool
Oct15Bracing
Nov12Bracing
Dec9Bracing

UV index in Colchester 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 Colchester peaks around June 23 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJun 23UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Colchester?

Colchester sits at 51.9°N, 0.9°E, 29 m above sea level, in United Kingdom. The nearest listed city is Sudbury, 20 km away.

Topography around Colchester

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

Within 3 km, the terrain around Colchester has only modest variations in elevation — a maximum elevation change of 59 m around an average of 29 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 100 m; within 80 km, only modest variations in elevation — a maximum elevation change of 249 m.

The land around Colchester is covered by artificial surfaces (41%), trees (33%) and grassland (22%) within 3 km, cropland (41%) and grassland (26%) within 16 km, and cropland (40%) and water (25%) within 80 km.

3 km
59 m
16 km
100 m
80 km
249 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Sudbury 20 km · Clacton-on-Sea 21 km · Witham 21 km · Maldon 24 km · Braintree 24 km · Frinton-on-Sea 24 km · Walton-on-the-Naze 25 km · Ipswich 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 Colchester (51.8892°, 0.9042°, elevation 29 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).