Southend-on-Sea weather in July

In July, Southend-on-Sea sees average daytime highs of 20°C and overnight lows near 15°C, with 56 mm of rain across 11 wet days and about 15.9 hours of daylight. It is the 2nd-warmest and 6th-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 22% of the time in July, and the air most often feels comfortable.

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 Southend-on-Sea's 1st-clearest and 12th-windiest month. For the whole year in context, see Southend-on-Sea's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
56 mm
11 wet days
Daylight
16 hours
4:04 AM – 8:02 PM
Cloud cover
63%
1st clearest
Wind
16 km/h
12th windiest
Solar energy
5.57 kWh/m²
Travel score
6.1
out of 10

Southend-on-Sea is city in Essex, United Kingdom.

Air quality
Moderate
PM2.5 10.6 µg/m³ · 2019
Density
7,072/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 19°C in the first days to 21°C by the end.

A typical July day in Southend-on-Sea reaches about 20°C in the afternoon and slips back to 15°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 23°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11914
21914
31914
41914
51914
61914
71914
81914
92014
102014
112014
122015
132015
142015
152015
162015
172015
182015
192015
202015
212015
222015
232115
242115
252115
262115
272115
282115
292115
302115
312115

How July really feels in Southend-on-Sea

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.

Southend-on-Sea weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6713.30.78.10.9
Feb / 5410.81.19.61.0
Mar / 4610.20.411.51.8
Apr12° / 4710013.53.0
May15° / 10°539.6015.34.3
Jun18° / 13°559.8016.35.6
Jul20° / 15°5611015.96.1
Aug20° / 15°6310.2014.46.2
Sep18° / 13°5610.3012.45.6
Oct14° / 10°7312.3010.44.0
Nov11° / 7112.50.18.62.3
Dec / 7412.70.87.71.3

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33961
43961
53961
63862
73862
83961
93961
103961
114060
124060
134060
144060
154159
164258
174357
184258
194258
204357
214357
224258
234258
244258
254258
264258
274258
284159
294159
304060
314159

Chance of precipitation in July

Any precipitation

Southend-on-Sea gets around 56 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 34% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
137
237
338
438
538
638
738
838
937
1037
1136
1236
1335
1434
1534
1633
1732
1832
1932
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3033
3133

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 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1573760
2563860
3553960
4534160
5524260
6514360
7504460
8494460
9484570
10474670
11464670
12464780
13454780
14444790
154347100
164247100
174147110
184048120
193948130
203848140
213748151
223648151
233548161
243449161
253449171
263349171
273250171
283250171
293150181
303150181
313051181

Wind in July

Winds average 16 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
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light 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 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 8:11 PM to 7:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.43:508:11
216.33:518:11
316.33:518:10
416.33:528:10
516.33:538:10
616.33:548:09
716.23:548:09
816.23:558:08
916.23:568:08
1016.23:578:07
1116.13:588:06
1216.13:598:05
1316.14:008:05
1416.04:018:04
1516.04:028:03
1616.04:048:02
1715.94:058:01
1815.94:068:00
1915.94:077:59
2015.84:087:58
2115.84:107:57
2215.74:117:55
2315.74:127:54
2415.74:147:53
2515.64:157:52
2615.64:167:50
2715.54:187:49
2815.54:197:47
2915.44:217:46
3015.44:227:44
3115.34:247:43

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.57 kWh/m².

For context, solar energy here swings from a low near 0.68 kWh/m² to a high of 5.76 kWh/m² in June across the year — July's 5.57 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.3Bright
315.3Bright
Planning a trip in July

Is July a good time to visit Southend-on-Sea?

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
3.2
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Southend-on-Sea for sightseeing.

What to pack for Southend-on-Sea in July

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

In July, Southend-on-Sea sees daytime highs around 20°C and nights near 15°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Southend-on-Sea 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 30 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 Southend-on-Sea 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 Southend-on-Sea 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 Southend-on-Sea?

Southend-on-Sea sits at 51.5°N, 0.7°E, 31 m above sea level, in United Kingdom. The nearest listed city is Rochford, 5.0 km away.

Topography around Southend-on-Sea

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Southend-on-Sea.

Within 3 km, the terrain around Southend-on-Sea has only modest variations in elevation — a maximum elevation change of 42 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 100 m; within 80 km, significant variations in elevation — a maximum elevation change of 287 m.

The land around Southend-on-Sea is covered by water (39%) and artificial surfaces (35%) within 3 km, water (38%) and grassland (23%) within 16 km, and water (28%) and cropland (27%) within 80 km.

3 km
42 m
16 km
100 m
80 km
287 m
treesgrasslandcroplandartificial surfaceswaterwetland
July weather nearby: Rochford 5.0 km · Hadleigh 7.0 km · Rayleigh 9.0 km · Canvey Island 9.0 km · South Benfleet 11 km · Pitsea 15 km · Wickford 16 km · Basildon 18 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 Southend-on-Sea (51.5378°, 0.7143°, elevation 31 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).