Redruth weather in May

In May, Redruth sees average daytime highs of 14°C and overnight lows near 10°C, with 57 mm of rain across 11 wet days and about 15.2 hours of daylight. It is the 6th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 16°C by the end. The sky is clear or mostly clear about 19% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 24 min at the start of May to 15 h 48 min by month's end. Set against the rest of the year, May is Redruth's 2nd-clearest and 9th-windiest month. For the whole year in context, see Redruth's year-round climate.

Daytime high
14°
6th warmest
Overnight low
10°
7th coldest
Rainfall
57 mm
11 wet days
Daylight
15 h 12 min
4:41 AM – 7:53 PM
Cloud cover
67%
2nd clearest
Wind
19 km/h
9th windiest
Solar energy
5.29 kWh/m²
Travel score
4.1
out of 10

Redruth is town and civil parish in Cornwall, England, UK.

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 13°C in the first days to 16°C by the end.

A typical May day in Redruth reaches about 14°C in the afternoon and slips back to 10°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 17°C. Set against its neighbours, May runs about 2°C warmer than April and about 2°C cooler than June.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1139
2139
3139
4139
5139
6149
7149
8149
9149
10149
11149
12149
13149
14149
151410
161410
171510
181510
191510
201510
211510
221510
231510
241510
251511
261511
271611
281611
291611
301611
311611

Redruth weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 8314.98.31.7
Feb / 67129.71.7
Mar10° / 6012.211.52.2
Apr12° / 611213.53.0
May14° / 10°571115.24.1
Jun17° / 12°5510.916.15.2
Jul19° / 14°569.915.75.9
Aug19° / 14°6310.914.35.8
Sep17° / 13°569.912.45.4
Oct15° / 11°8613.610.53.9
Nov12° / 9115.78.82.6
Dec10° / 8915.17.92.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% 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 64%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13862
23862
33862
43862
53862
63763
73763
83862
93763
103763
113763
123565
133565
143664
153565
163466
173565
183466
193466
203466
213466
223367
233268
243466
253466
263367
273466
283466
293565
303565
313664

Chance of precipitation in May

Any precipitation

Redruth gets around 57 mm of rain over 11 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 37% and peaks near 41% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
340
439
539
638
738
837
937
1037
1138
1238
1338
1438
1537
1637
1737
1836
1936
2036
2135
2235
2335
2435
2535
2635
2735
2835
2936
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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
4991
5991
6991
7991
8991
9982
10982
11982
12982
13982
14982
15982
16973
17973
18973
19973
20964
21964
22964
23955
24955
25955
26946
27946
28937
29937
30928
31919

Wind in May

Winds average 19 km/h in May.

Across May, daily wind ranges from about 18 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 24 min at the start of May to 15 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 84 minutes over May. Sunrise moves from 5:06 AM to 4:24 AM, and sunset from 7:31 PM to 8:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.45:067:31
214.55:047:32
314.55:027:34
414.65:007:35
514.64:587:37
614.74:577:38
714.74:557:40
814.84:537:41
914.94:527:43
1014.94:507:44
1115.04:487:46
1215.04:477:47
1315.14:457:49
1415.14:447:50
1515.24:427:52
1615.24:417:53
1715.34:407:55
1815.34:387:56
1915.34:377:58
2015.44:367:59
2115.44:348:00
2215.54:338:02
2315.54:328:03
2415.64:318:04
2515.64:308:05
2615.64:298:07
2715.74:288:08
2815.74:278:09
2915.74:268:10
3015.84:258:11
3115.84:248:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.29 kWh/m².

For context, solar energy here swings from a low near 0.73 kWh/m² to a high of 5.53 kWh/m² in June across the year — May's 5.29 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.5Bright
315.5Bright
Planning a trip in May

Is May a good time to visit Redruth?

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

4.1
Sightseeing
5th-best month of the year
0.1
Beach & pool
6th-best month of the year

May is a reasonable time to visit Redruth for sightseeing.

What to pack for Redruth in May

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

In May, Redruth sees daytime highs around 14°C and nights near 10°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

Sea temperature near Redruth 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 14 km away) is warmest in August at about 17°C and coldest in March near 10°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°15°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan10Bracing
Feb10Bracing
Mar10Bracing
Apr10Bracing
May12Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep16Cool
Oct15Bracing
Nov13Bracing
Dec12Bracing

UV index in Redruth 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 Redruth peaks around August 14 at about 7 (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 14UV 7Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun6High
Jul6High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Redruth?

Redruth sits at 50.2°N, 5.2°W, 135 m above sea level, in United Kingdom. The nearest listed city is Camborne, 6.0 km away.

Topography around Redruth

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

Within 3 km, the terrain around Redruth has only modest variations in elevation — a maximum elevation change of 211 m around an average of 134 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 251 m; within 80 km, significant variations in elevation — a maximum elevation change of 402 m.

The land around Redruth is covered by grassland (52%) and trees (26%) within 3 km, grassland (35%) and water (28%) within 16 km, and water (73%) within 80 km.

3 km
211 m
16 km
251 m
80 km
402 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Camborne 6.0 km · Truro 13 km · Falmouth 14 km · Newquay 23 km · Penzance 26 km · St Austell 34 km · Bodmin 44 km · Saltash 74 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 Redruth (50.2332°, -5.2243°, elevation 135 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).