Saint Ives weather in September

In September, Saint Ives sees average daytime highs of 19°C and overnight lows near 11°C, with 50 mm of rain across 9.1 wet days and about 12.4 hours of daylight. It is the 4th-warmest and 8th-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 13% 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 Saint Ives's 4th-clearest and 9th-windiest month. For the whole year in context, see Saint Ives's year-round climate.

Daytime high
19°
4th warmest
Overnight low
11°
9th coldest
Rainfall
50 mm
9.1 wet days
Daylight
12 h 24 min
5:43 AM – 6:07 PM
Cloud cover
70%
4th clearest
Wind
15 km/h
9th windiest
Solar energy
2.96 kWh/m²
Travel score
5.9
out of 10

Saint Ives is market town in Huntingdonshire, Cambridgeshire, UK.

Density
1,545/km²
people per km²

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 Saint Ives reaches about 19°C in the afternoon and slips back to 11°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)
12012
22012
32012
42012
52012
62012
72012
82011
91911
101911
111911
121911
131911
141911
151911
161911
171911
181811
191811
201811
211811
221810
231810
241810
251810
261710
271710
281710
291710
301710

How September really feels in Saint Ives

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.

Saint Ives weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5010.80.781.0
Feb / 399.71.29.51.2
Mar10° / 4310.10.711.52.4
Apr13° / 4810.70.113.63.6
May16° / 5410.5015.45.0
Jun19° / 11°5910.4016.55.9
Jul22° / 13°6011.5016.16.3
Aug22° / 13°6110.5014.56.3
Sep19° / 11°509.1012.45.9
Oct15° / 5710.4010.34.2
Nov10° / 5510.80.28.52.3
Dec / 5211.20.97.51.1

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 17% of September, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13268
23268
33466
43466
53466
63466
73466
83466
93466
103367
113367
123367
133268
143268
153169
163169
173070
182971
192971
202773
212773
222773
232773
242773
252773
262773
272773
282773
292773
302773

Chance of precipitation in September

Any precipitation

Saint Ives gets around 50 mm of rain over 9.1 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 31% and peaks near 36% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
127
227
326
426
526
626
727
827
928
1028
1129
1229
1329
1430
1530
1631
1731
1832
1932
2033
2133
2233
2334
2434
2535
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 78% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
171254
271254
372244
472244
573234
673234
774224
874224
975214
1075214
1176204
1277194
1377194
1479183
1579183
1679183
1780182
1880182
1980182
2081181
2180191
2280191
2380191
2482180
2582180
2683170
2783170
2884160
2984160
3085150

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
414light breeze
514light breeze
614light 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 5:17 AM to 6:07 AM, and sunset from 6:43 PM to 5:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:176:43
213.45:196:41
313.35:206:38
413.25:226:36
513.25:246:33
613.15:266:31
713.05:276:29
813.05:296:26
912.95:316:24
1012.85:326:21
1112.75:346:19
1212.75:366:16
1312.65:376:14
1412.55:396:12
1512.55:416:09
1612.45:436:07
1712.35:446:04
1812.35:466:02
1912.25:485:59
2012.15:495:57
2112.15:515:54
2212.05:535:52
2311.95:555:49
2411.85:565:47
2511.85:585:45
2611.76:005:42
2711.66:025:40
2811.66:035:37
2911.56:055:35
3011.46:075:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 2.96 kWh/m².

For context, solar energy here swings from a low near 0.61 kWh/m² to a high of 5.13 kWh/m² in June across the year — September's 2.96 kWh/m² falls in the middle.

01234151015202530
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.4Moderate
53.4Moderate
63.4Moderate
73.3Moderate
83.3Moderate
93.2Moderate
103.2Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.0Moderate
153.0Moderate
162.9Moderate
172.9Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.6Moderate
242.6Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.3Moderate
Planning a trip in September

Is September a good time to visit Saint Ives?

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
2.3
Beach & pool
4th-best month of the year

September is a reasonable time to visit Saint Ives for sightseeing.

What to pack for Saint Ives in September

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

In September, Saint Ives sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 9 days see rain.

rain gear

Sea temperature near Saint Ives 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 68 km away) is warmest in August at about 18°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
Jul17Cool
Aug18Cool
Sep16Cool
Oct13Bracing
Nov10Bracing
Dec7Bracing

UV index in Saint Ives 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 Saint Ives 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 December 21 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 6Dec 21UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Saint Ives?

Saint Ives sits at 52.3°N, 0.1°W, 12 m above sea level, in United Kingdom. The nearest listed city is Huntingdon, 7.0 km away.

Topography around Saint Ives

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

Within 3 km, the terrain around Saint Ives has only modest variations in elevation — a maximum elevation change of 38 m around an average of 14 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, significant variations in elevation — a maximum elevation change of 301 m.

The land around Saint Ives is covered by grassland (33%) and cropland (32%) within 3 km, cropland (62%) and grassland (21%) within 16 km, and cropland (58%) and grassland (23%) within 80 km.

3 km
38 m
16 km
93 m
80 km
301 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Huntingdon 7.0 km · Saint Neots 18 km · Cambridge 20 km · Ely 24 km · Primrose Place 25 km · March 27 km · Peterborough 29 km · Biggleswade 30 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 Saint Ives (52.3325°, -0.0766°, elevation 12 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).