Chelmsford weather in July

In July, Chelmsford sees average daytime highs of 21°C and overnight lows near 14°C, with 53 mm of rain across 10.9 wet days and about 16 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 22°C by the end. The sky is clear or mostly clear about 17% 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 Chelmsford's 1st-clearest and 12th-windiest month. For the whole year in context, see Chelmsford's year-round climate.

Daytime high
21°
1st warmest
Overnight low
14°
12th coldest
Rainfall
53 mm
10.9 wet days
Daylight
16 hours
4:04 AM – 8:04 PM
Cloud cover
66%
1st clearest
Wind
14 km/h
12th windiest
Solar energy
5.27 kWh/m²
Travel score
6.3
out of 10

Chelmsford is city in Essex, United Kingdom.

Density
4,339/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

Highs climb over the month, from about 21°C in the first days to 22°C by the end.

A typical July day in Chelmsford reaches about 21°C in the afternoon and slips back to 14°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 18°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)
12013
22113
32113
42113
52113
62113
72113
82113
92113
102113
112114
122114
132114
142114
152114
162214
172214
182214
192214
202214
212214
222214
232214
242214
252214
262214
272214
282214
292214
302214
312214

How July really feels in Chelmsford

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.

Chelmsford weather by month

How July compares with the rest of the year at a glance. July is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5010.70.88.10.9
Feb / 41919.61.1
Mar10° / 39100.711.52.2
Apr13° / 4610.80.113.63.5
May16° / 519.8015.44.9
Jun19° / 12°539.9016.35.9
Jul21° / 14°5310.90166.3
Aug21° / 14°599.9014.46.4
Sep18° / 11°468.9012.45.9
Oct15° / 5510.5010.44.2
Nov10° / 5610.40.18.62.3
Dec / 5410.50.87.61.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% 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 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23565
33466
43565
53565
63565
73565
83466
93466
103565
113664
123664
133664
143664
153664
163763
173763
183763
193763
203763
213763
223763
233862
243862
253862
263862
273862
283763
293664
303664
313664

Chance of precipitation in July

Any precipitation

Chelmsford gets around 53 mm of rain over 10.9 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 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
437
537
637
737
837
936
1036
1135
1235
1334
1434
1533
1632
1732
1831
1931
2031
2131
2232
2332
2432
2532
2633
2733
2833
2933
3034
3134

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 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
163307
262317
360337
459347
558357
656377
755387
854397
954397
1053407
1152408
1251418
1351418
1450419
1550419
16504110
17494110
18494111
19484111
20474112
21474113
22464113
23464113
24454114
25454214
26444214
27444214
28434214
29434215
30434215
31424215

Wind in July

Winds average 14 km/h in July, the calmest month.

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 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 3:50 AM to 4:24 AM, and sunset from 8:13 PM to 7:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.43:508:13
216.43:518:13
316.43:518:12
416.33:528:12
516.33:538:12
616.33:538:11
716.33:548:11
816.23:558:10
916.23:568:10
1016.23:578:09
1116.23:588:08
1216.13:598:07
1316.14:008:07
1416.14:018:06
1516.04:028:05
1616.04:048:04
1716.04:058:03
1815.94:068:02
1915.94:078:01
2015.94:088:00
2115.84:107:58
2215.84:117:57
2315.74:127:56
2415.74:147:55
2515.64:157:53
2615.64:177:52
2715.54:187:51
2815.54:207:49
2915.44:217:48
3015.44:227:46
3115.34:247:44

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.27 kWh/m².

For context, solar energy here swings from a low near 0.65 kWh/m² to a high of 5.48 kWh/m² in June across the year — July's 5.27 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in July

Is July a good time to visit Chelmsford?

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

6.3
Sightseeing
2nd-best month of the year
4.1
Beach & pool
1st-best month of the year

July is a reasonable time to visit Chelmsford for sightseeing.

What to pack for Chelmsford in July

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

In July, Chelmsford sees daytime highs around 21°C and nights near 14°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Chelmsford 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 47 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 Chelmsford 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 Chelmsford peaks around August 10 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 10UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Chelmsford?

Chelmsford sits at 51.7°N, 0.5°E, 33 m above sea level, in United Kingdom. The nearest listed city is Billericay, 12 km away.

Topography around Chelmsford

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

Within 3 km, the terrain around Chelmsford has only modest variations in elevation — a maximum elevation change of 53 m around an average of 38 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 117 m; within 80 km, significant variations in elevation — a maximum elevation change of 290 m.

The land around Chelmsford is covered by artificial surfaces (39%), trees (28%) and grassland (21%) within 3 km, cropland (50%), grassland (22%) and trees (20%) within 16 km, and cropland (36%) and grassland (21%) within 80 km.

3 km
53 m
16 km
117 m
80 km
290 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Billericay 12 km · Witham 14 km · Maldon 14 km · Wickford 14 km · Braintree 17 km · Brentwood 17 km · Basildon 19 km · Rayleigh 19 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 Chelmsford (51.7358°, 0.4696°, elevation 33 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).