Lincoln weather in September

In September, Lincoln sees average daytime highs of 18°C and overnight lows near 10°C, with 58 mm of rain across 9.8 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 19°C in the first days to 17°C by the end. The sky is clear or mostly clear about 13% of the time in September, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of September to 11 h 24 min by month's end. Set against the rest of the year, September is Lincoln's 7th-clearest and 9th-windiest month. For the whole year in context, see Lincoln's year-round climate.

Daytime high
18°
4th warmest
Overnight low
10°
9th coldest
Rainfall
58 mm
9.8 wet days
Daylight
12 h 24 min
5:44 AM – 6:09 PM
Cloud cover
72%
7th clearest
Wind
15 km/h
9th windiest
Solar energy
2.91 kWh/m²
Travel score
5.6
out of 10

Lincoln is cathedral city and county town of Lincolnshire, England, UK.

Density
2,909/km²
people per km²
Founded
1072

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 19°C in the first days to 17°C by the end.

A typical September day in Lincoln reaches about 18°C in the afternoon and slips back to 10°C overnight — a 8°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)
12011
21911
31911
41911
51911
61911
71911
81911
91911
101911
111911
121811
131811
141811
151810
161810
171810
181810
191810
201810
211710
221710
231710
241710
251710
261710
271710
28179
29169
30169

How September really feels in Lincoln

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.

Lincoln weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5111.417.90.8
Feb / 399.71.39.41.1
Mar10° / 4510.90.911.52.1
Apr13° / 5411.30.213.63.3
May16° / 5511.1015.64.6
Jun19° / 11°7012016.65.5
Jul21° / 13°6911.9016.26.0
Aug21° / 13°6911.2014.66.1
Sep18° / 10°589.8012.45.6
Oct14° / 6111.1010.33.9
Nov10° / 58110.28.42.1
Dec / 5410.817.40.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 72%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13169
23268
33268
43268
53268
63169
73169
83268
93070
103070
112971
122971
132971
142872
152872
162773
172773
182674
192476
202476
212476
222476
232476
242476
252476
262476
272476
282575
292575
302575

Chance of precipitation in September

Any precipitation

Lincoln gets around 58 mm of rain over 9.8 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 33% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
132
232
331
431
532
632
732
833
933
1033
1133
1233
1333
1433
1533
1633
1733
1833
1933
2033
2133
2233
2333
2434
2534
2635
2735
2836
2936
3036

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 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
176222
276222
377212
477212
577212
678202
778202
879192
980182
1081172
1181172
1282162
1383152
1484142
1585132
1685132
1785132
1886131
1986131
2086131
2186131
2286131
2387130
2487130
2587130
2687130
2788120
2888120
2989110
3089110

Wind in September

Winds average 15 km/h in September.

Across September, 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.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light 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
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 h 30 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 126 minutes over September. Sunrise moves from 5:17 AM to 6:09 AM, and sunset from 6:46 PM to 5:34 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:176:46
213.45:196:44
313.35:216:41
413.35:236:39
513.25:256:36
613.15:266:34
713.15:286:32
813.05:306:29
912.95:326:27
1012.85:336:24
1112.85:356:21
1212.75:376:19
1312.65:396:16
1412.65:416:14
1512.55:426:11
1612.45:446:09
1712.35:466:06
1812.35:486:04
1912.25:496:01
2012.15:515:59
2112.15:535:56
2212.05:555:54
2311.95:575:51
2411.85:585:49
2511.86:005:46
2611.76:025:44
2711.66:045:41
2811.66:065:39
2911.56:075:36
3011.46:095:34

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.91 kWh/m².

For context, solar energy here swings from a low near 0.57 kWh/m² to a high of 5.03 kWh/m² in June across the year — September's 2.91 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.4Moderate
43.4Moderate
53.4Moderate
63.3Moderate
73.3Moderate
83.2Moderate
93.2Moderate
103.1Moderate
113.1Moderate
123.1Moderate
133.0Moderate
143.0Moderate
152.9Moderate
162.9Moderate
172.8Moderate
182.8Moderate
192.7Moderate
202.7Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.5Moderate
252.5Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.3Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Lincoln?

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

5.6
Sightseeing
3rd-best month of the year
1.9
Beach & pool
4th-best month of the year

September is a reasonable time to visit Lincoln for sightseeing.

What to pack for Lincoln in September

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

In September, Lincoln sees daytime highs around 18°C and nights near 10°C. Worth packing: rain gear. About 10 days see rain.

rain gear

Sea temperature near Lincoln in September

The nearest coast averages about 16°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 62 km away) is warmest in August at about 17°C and coldest in February near 5°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
Jan6Bracing
Feb5Bracing
Mar6Bracing
Apr8Bracing
May11Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep16Cool
Oct13Bracing
Nov10Bracing
Dec7Bracing

UV index in Lincoln 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 Lincoln peaks around August 11 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 11UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Low
Nov1Low
Dec1Low
Location & terrain

Where is Lincoln?

Lincoln sits at 53.2°N, 0.5°W, 9 m above sea level, in United Kingdom. The nearest listed city is Gainsborough, 23 km away.

Topography around Lincoln

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

Within 3 km, the terrain around Lincoln has only modest variations in elevation — a maximum elevation change of 77 m around an average of 28 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 94 m; within 80 km, significant variations in elevation — a maximum elevation change of 585 m.

The land around Lincoln is covered by artificial surfaces (32%), grassland (25%) and trees (23%) within 3 km, cropland (64%) and grassland (20%) within 16 km, and cropland (49%) and grassland (21%) within 80 km.

3 km
77 m
16 km
94 m
80 km
585 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Gainsborough 23 km · Newark on Trent 26 km · Sleaford 27 km · Retford 29 km · Grantham 36 km · Louth 39 km · Worksop 40 km · Scunthorpe 40 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 Lincoln (53.2268°, -0.5379°, elevation 9 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).