Sudbury weather in May

In May, Sudbury sees average daytime highs of 16°C and overnight lows near 9°C, with 52 mm of rain across 10.2 wet days and about 15.4 hours of daylight. It is the 5th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 14°C in the first days to 17°C by the end. The sky is clear or mostly clear about 16% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 36 min at the start of May to 16 h 06 min by month's end. Set against the rest of the year, May is Sudbury's 3rd-clearest and 8th-windiest month. For the whole year in context, see Sudbury's year-round climate.

Daytime high
16°
5th warmest
Overnight low
8th coldest
Rainfall
52 mm
10.2 wet days
Daylight
15 h 24 min
4:10 AM – 7:36 PM
Cloud cover
68%
3rd clearest
Wind
16 km/h
8th windiest
Solar energy
5.2 kWh/m²
Travel score
4.7
out of 10

Sudbury is town in Babergh, Suffolk, England.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 14°C in the first days to 17°C by the end.

A typical May day in Sudbury reaches about 16°C in the afternoon and slips back to 9°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 20°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1147
2147
3147
4147
5158
6158
7158
8158
9158
10158
11158
12158
13158
14158
15168
16169
17169
18169
19169
20169
21169
22169
23169
241710
251710
261710
271710
281710
291710
301710
311710

How May really feels in Sudbury

Once humidity and wind are folded in, May 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

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

Sudbury weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5011.318.10.9
Feb / 419.41.29.61.0
Mar10° / 409.90.611.52.1
Apr13° / 4511013.63.3
May16° / 5210.2015.44.7
Jun19° / 11°5611016.45.7
Jul21° / 14°5611.70166.2
Aug21° / 14°6110.5014.46.3
Sep18° / 11°489.2012.45.8
Oct14° / 5710.6010.44.1
Nov10° / 5510.20.18.52.3
Dec / 5410.80.97.61.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23367
33367
43367
53466
63466
73565
83565
93565
103565
113565
123565
133466
143466
153466
163466
173367
183367
193367
203367
213268
223268
233367
243367
253367
263367
273367
283367
293367
303367
313367

Chance of precipitation in May

Any precipitation

Sudbury gets around 52 mm of rain over 10.2 wet days in May. 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 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
335
434
534
633
733
832
932
1032
1133
1233
1333
1434
1534
1634
1734
1834
1934
2035
2135
2235
2335
2435
2534
2634
2734
2835
2935
3036
3136

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 95% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69820
79820
89820
99820
109730
119730
129730
139730
149730
159640
169640
179640
189550
199550
209460
219460
229370
239370
249280
259190
269190
2790100
2889110
2987121
3087121
3186131

Wind in May

Winds average 16 km/h in May.

Across May, 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
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
3115light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 36 min at the start of May to 16 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 90 minutes over May. Sunrise moves from 4:37 AM to 3:52 AM, and sunset from 7:12 PM to 7:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.64:377:12
214.64:357:13
314.74:337:15
414.84:317:17
514.84:297:18
614.94:277:20
714.94:257:22
815.04:247:23
915.14:227:25
1015.14:207:27
1115.24:187:28
1215.24:177:30
1315.34:157:32
1415.34:137:33
1515.44:127:35
1615.44:107:36
1715.54:097:38
1815.54:077:39
1915.64:067:41
2015.64:047:42
2115.74:037:44
2215.74:027:45
2315.84:017:47
2415.83:597:48
2515.93:587:49
2615.93:577:51
2715.93:567:52
2816.03:557:53
2916.03:547:55
3016.13:537:56
3116.13:527:57

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.2 kWh/m².

For context, solar energy here swings from a low near 0.63 kWh/m² to a high of 5.42 kWh/m² in June across the year — May's 5.2 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
34.9Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Is May a good time to visit Sudbury?

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

4.7
Sightseeing
5th-best month of the year
0.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Sudbury for sightseeing.

What to pack for Sudbury in May

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

In May, Sudbury sees daytime highs around 16°C and nights near 9°C. Worth packing: a warm layer, rain gear and sun protection. About 10 days see rain.

a warm layerrain gearsun protection

Sea temperature near Sudbury in May

The nearest coast averages about 12°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 48 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 Sudbury in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Sudbury 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 Sudbury?

Sudbury sits at 52.0°N, 0.7°E, 36 m above sea level, in United Kingdom. The nearest listed city is Colchester, 20 km away.

Topography around Sudbury

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

Within 3 km, the terrain around Sudbury has only modest variations in elevation — a maximum elevation change of 83 m around an average of 49 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 123 m; within 80 km, only modest variations in elevation — a maximum elevation change of 217 m.

The land around Sudbury is covered by cropland (44%), grassland (23%) and trees (22%) within 3 km, cropland (62%) and grassland (20%) within 16 km, and cropland (45%) and water (20%) within 80 km.

3 km
83 m
16 km
123 m
80 km
217 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Colchester 20 km · Haverhill 21 km · Braintree 22 km · Bury St Edmunds 23 km · Stowmarket 25 km · Witham 27 km · Ipswich 29 km · Newmarket 32 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 Sudbury (52.0389°, 0.7312°, elevation 36 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).