Billericay weather in September

In September, Billericay sees average daytime highs of 18°C and overnight lows near 11°C, with 46 mm of rain across 8.9 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 17°C by the end. The sky is clear or mostly clear about 15% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Billericay's 5th-clearest and 9th-windiest month. For the whole year in context, see Billericay's year-round climate.

Daytime high
18°
4th warmest
Overnight low
11°
9th coldest
Rainfall
46 mm
8.9 wet days
Daylight
12 h 24 min
5:41 AM – 6:04 PM
Cloud cover
68%
5th clearest
Wind
15 km/h
9th windiest
Solar energy
3.16 kWh/m²
Travel score
5.9
out of 10

Billericay is town in the Borough of Basildon, Essex, England.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 20°C in the first days to 17°C by the end.

A typical September day in Billericay reaches about 18°C in the afternoon and slips back to 11°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 22°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12013
22012
32012
42012
52012
62012
71912
81912
91912
101912
111912
121912
131912
141912
151911
161811
171811
181811
191811
201811
211811
221811
231811
241811
251711
261711
271711
281710
291710
301710

How September really feels in Billericay

Once humidity and wind are folded in, September 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

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Billericay weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 10th-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° / 519.8015.34.9
Jun19° / 12°539.9016.35.9
Jul21° / 14°5310.9015.96.3
Aug21° / 14°599.9014.46.4
Sep18° / 11°468.9012.45.9
Oct15° / 5510.5010.44.2
Nov10° / 5610.40.18.62.3
Dec / 5410.50.87.71.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 15% of the time in September.

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

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23565
33664
43664
53664
63763
73763
83664
93664
103664
113664
123565
133466
143466
153367
163367
173268
183268
193169
203169
213169
222971
232971
242971
252971
262971
272971
282971
292971
303070

Chance of precipitation in September

Any precipitation

Billericay gets around 46 mm of rain over 8.9 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 35% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
128
228
328
428
528
628
728
828
928
1028
1128
1228
1328
1428
1528
1628
1728
1829
1929
2030
2130
2231
2332
2432
2533
2634
2734
2835
2935
3035

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 72% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
164306
264306
365296
466286
566286
667276
768266
868266
969256
1069256
1170246
1271245
1372235
1472235
1574224
1674224
1775223
1875223
1975232
2075232
2175232
2276231
2376231
2476231
2576231
2678220
2778220
2879210
2980200
3080200

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light 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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 24 min at the start of September to 11 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 120 minutes over September. Sunrise moves from 5:16 AM to 6:04 AM, and sunset from 6:40 PM to 5:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:166:40
213.35:186:38
313.35:196:35
413.25:216:33
513.15:236:31
613.15:246:28
713.05:266:26
812.95:286:24
912.95:296:21
1012.85:316:19
1112.75:336:16
1212.75:346:14
1312.65:366:12
1412.55:386:09
1512.55:396:07
1612.45:416:04
1712.35:436:02
1812.35:446:00
1912.25:465:57
2012.15:485:55
2112.15:495:52
2212.05:515:50
2311.95:535:48
2411.85:545:45
2511.85:565:43
2611.75:585:40
2711.65:595:38
2811.66:015:36
2911.56:035:33
3011.46:045:31

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.16 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 — September's 3.16 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.8Moderate
23.7Moderate
33.7Moderate
43.7Moderate
53.6Moderate
63.6Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.4Moderate
113.4Moderate
123.3Moderate
133.3Moderate
143.2Moderate
153.2Moderate
163.1Moderate
173.1Moderate
183.0Moderate
193.0Moderate
203.0Moderate
212.9Moderate
222.9Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.6Moderate
282.6Moderate
292.5Moderate
302.5Moderate
Planning a trip in September

Is September a good time to visit Billericay?

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

5.9
Sightseeing
3rd-best month of the year
2.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Billericay for sightseeing.

What to pack for Billericay in September

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

In September, Billericay sees daytime highs around 18°C and nights near 11°C. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Billericay in September

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

The sea at the nearest coast (about 49 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 Billericay in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Billericay 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 Billericay?

Billericay sits at 51.6°N, 0.4°E, 87 m above sea level, in United Kingdom. The nearest listed city is Basildon, 7.0 km away.

Topography around Billericay

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

Within 3 km, the terrain around Billericay has only modest variations in elevation — a maximum elevation change of 87 m around an average of 63 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 130 m; within 80 km, significant variations in elevation — a maximum elevation change of 306 m.

The land around Billericay is covered by trees (34%), grassland (27%) and cropland (26%) within 3 km, cropland (33%), grassland (28%) and trees (23%) within 16 km, and cropland (32%), grassland (23%) and trees (21%) within 80 km.

3 km
87 m
16 km
130 m
80 km
306 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Basildon 7.0 km · Wickford 7.0 km · Brentwood 8.0 km · Pitsea 9.0 km · Stanford-le-Hope 12 km · Chelmsford 12 km · South Benfleet 13 km · Rayleigh 14 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 Billericay (51.6287°, 0.4196°, elevation 87 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).