Lewes weather in May

In May, Lewes sees average daytime highs of 13°C and overnight lows near 10°C, with 47 mm of rain across 8.5 wet days and about 15.2 hours of daylight. It is the 6th-warmest and 12th-wettest month of the year here.

Highs climb over the month, from about 12°C in the first days to 14°C by the end. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 14 h 30 min at the start of May to 15 h 54 min by month's end. Set against the rest of the year, May is Lewes's 6th-clearest and 9th-windiest month. For the whole year in context, see Lewes's year-round climate.

Daytime high: 13°; 6th warmest
Overnight low: 10°; 7th coldest
Rainfall: 47 mm; 8.5 wet days
Daylight: 15 h 18 min; 4:18 AM – 7:35 PM
Cloud cover: 62%; 6th clearest
Wind: 22 km/h; 9th windiest
Solar energy: 5.43 kWh/m²
Travel score: 3.6; out of 10

Lewes is town in East Sussex, England.

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

← April Lewes year-round climate June →Best places to visit in May

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 12°C in the first days to 14°C by the end.

A typical May day in Lewes reaches about 13°C in the afternoon and slips back to 10°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 15°C. Set against its neighbours, May runs about 2°C warmer than April and about 2°C cooler than June.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Avg high (°C)	12	12	12	12	12	12	12	12	12	12	12	12	13	13	13	13	13	13	13	13	13	13	13	13	14	14	14	14	14	14	14
Avg low (°C)	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	11	11	11	11	11	11	11	11	11	11	11	12	12

	Avg high (°C)	Avg low (°C)
1	12	9
2	12	9
3	12	9
4	12	9
5	12	9
6	12	9
7	12	9
8	12	10
9	12	10
10	12	10
11	12	10
12	12	10
13	13	10
14	13	10
15	13	10
16	13	10
17	13	10
18	13	10
19	13	11
20	13	11
21	13	11
22	13	11
23	13	11
24	13	11
25	14	11
26	14	11
27	14	11
28	14	11
29	14	11
30	14	12
31	14	12

Lewes weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 12th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	8° / 6°	98	14.4	0.5	8.2	1.3
Feb	8° / 5°	67	11.6	0.6	9.7	1.1
Mar	9° / 6°	53	10.1	0.3	11.5	1.6
Apr	10° / 8°	48	9.2	0	13.5	2.5
May	13° / 10°	47	8.5	0	15.2	3.6
Jun	15° / 13°	48	8.7	0	16.2	4.7
Jul	17° / 15°	50	8.6	0	15.8	5.9
Aug	18° / 16°	63	9.1	0	14.3	6.1
Sep	17° / 15°	68	10.7	0	12.4	5.4
Oct	15° / 12°	114	14.3	0	10.4	3.9
Nov	12° / 9°	123	15.9	0	8.7	2.5
Dec	9° / 7°	111	14.6	0.4	7.8	1.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 19% of May, with mostly cloudy or overcast conditions the remaining 56%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Clearer (%)	44	44	45	44	44	43	43	43	43	43	43	44	44	44	43	44	44	43	45	45	45	45	45	45	44	44	45	45	45	44	46
Cloudier (%)	56	56	55	56	56	57	57	57	57	57	57	56	56	56	57	56	56	57	55	55	55	55	55	55	56	56	55	55	55	56	54

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	44	56
13	44	56
14	44	56
15	43	57
16	44	56
17	44	56
18	43	57
19	45	55
20	45	55
21	45	55
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	44	56
31	46	54

Chance of precipitation in May

Any precipitation

Lewes gets around 47 mm of rain over 8.5 wet days in May, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 30% on the wettest days.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Rain chance (%)	30	30	29	28	28	27	27	27	27	27	28	28	29	29	30	30	30	30	30	30	30	30	30	29	29	29	28	28	28	28	29

	Rain chance (%)
1	30
2	30
3	29
4	28
5	28
6	27
7	27
8	27
9	27
10	27
11	28
12	28
13	29
14	29
15	30
16	30
17	30
18	30
19	30
20	30
21	30
22	30
23	30
24	29
25	29
26	29
27	28
28	28
29	28
30	28
31	29

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Dry (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99	99	99	99	98	98	97	97	97	96	96	96	95	95	94
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	2	3	3	3	4	4	4	5	5	6

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	98	2
22	98	2
23	97	3
24	97	3
25	97	3
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	94	6

Wind in May

Winds average 22 km/h in May.

Across May, daily wind ranges from about 21 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Wind speed (km/h)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	21	21	21	21	21	21	21	21	21	21	21
Feels	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy	breezy

	Wind speed (km/h)	Feels
1	22	breezy
2	22	breezy
3	22	breezy
4	22	breezy
5	22	breezy
6	22	breezy
7	22	breezy
8	22	breezy
9	22	breezy
10	22	breezy
11	22	breezy
12	22	breezy
13	22	breezy
14	22	breezy
15	22	breezy
16	22	breezy
17	22	breezy
18	22	breezy
19	22	breezy
20	22	breezy
21	21	breezy
22	21	breezy
23	21	breezy
24	21	breezy
25	21	breezy
26	21	breezy
27	21	breezy
28	21	breezy
29	21	breezy
30	21	breezy
31	21	breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 14 h 30 min at the start of May to 15 h 54 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 4:43 AM to 4:00 AM, and sunset from 7:11 PM to 7:55 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Daylight (h)	14.5	14.5	14.6	14.6	14.7	14.8	14.8	14.9	14.9	15.0	15.0	15.1	15.1	15.2	15.2	15.3	15.3	15.4	15.4	15.5	15.5	15.6	15.6	15.6	15.7	15.7	15.8	15.8	15.8	15.9	15.9
Sunrise (AM)	4:43	4:41	4:39	4:37	4:36	4:34	4:32	4:30	4:29	4:27	4:25	4:24	4:22	4:21	4:19	4:18	4:16	4:15	4:14	4:12	4:11	4:10	4:08	4:07	4:06	4:05	4:04	4:03	4:02	4:01	4:00
Sunset (PM)	7:11	7:13	7:15	7:16	7:18	7:19	7:21	7:22	7:24	7:26	7:27	7:29	7:30	7:32	7:33	7:35	7:36	7:38	7:39	7:40	7:42	7:43	7:45	7:46	7:47	7:49	7:50	7:51	7:52	7:53	7:55

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	14.5	4:43	7:11
2	14.5	4:41	7:13
3	14.6	4:39	7:15
4	14.6	4:37	7:16
5	14.7	4:36	7:18
6	14.8	4:34	7:19
7	14.8	4:32	7:21
8	14.9	4:30	7:22
9	14.9	4:29	7:24
10	15.0	4:27	7:26
11	15.0	4:25	7:27
12	15.1	4:24	7:29
13	15.1	4:22	7:30
14	15.2	4:21	7:32
15	15.2	4:19	7:33
16	15.3	4:18	7:35
17	15.3	4:16	7:36
18	15.4	4:15	7:38
19	15.4	4:14	7:39
20	15.5	4:12	7:40
21	15.5	4:11	7:42
22	15.6	4:10	7:43
23	15.6	4:08	7:45
24	15.6	4:07	7:46
25	15.7	4:06	7:47
26	15.7	4:05	7:49
27	15.8	4:04	7:50
28	15.8	4:03	7:51
29	15.8	4:02	7:52
30	15.9	4:01	7:53
31	15.9	4:00	7:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.43 kWh/m².

For context, solar energy here swings from a low near 0.71 kWh/m² to a high of 5.81 kWh/m² in June across the year — May's 5.43 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
Solar energy (kWh/m²)	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.4	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.6	5.6	5.6	5.6	5.6	5.6
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.1	Bright
2	5.1	Bright
3	5.1	Bright
4	5.2	Bright
5	5.2	Bright
6	5.2	Bright
7	5.2	Bright
8	5.3	Bright
9	5.3	Bright
10	5.3	Bright
11	5.3	Bright
12	5.3	Bright
13	5.4	Bright
14	5.4	Bright
15	5.4	Bright
16	5.4	Bright
17	5.4	Bright
18	5.4	Bright
19	5.5	Bright
20	5.5	Bright
21	5.5	Bright
22	5.5	Bright
23	5.5	Bright
24	5.5	Bright
25	5.5	Bright
26	5.6	Bright
27	5.6	Bright
28	5.6	Bright
29	5.6	Bright
30	5.6	Bright
31	5.6	Bright

Planning a trip in May

Hazard calendar for Lewes

In seasonPeak

None of Lewes's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Lewes's rainy season runs August–February, when most of the year's rain falls.

Rainy season

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is May a good time to visit Lewes?

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

3.6

Sightseeing

6th-best month of the year

0.0

Beach & pool

6th-best month of the year

May is a weaker month for outdoor sightseeing in Lewes.

What to pack for Lewes in May

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

In May, Lewes sees daytime highs around 13°C and nights near 10°C. Worth packing: a warm layer, rain gear, sun protection and a windbreaker. About 9 days see rain.

a warm layerrain gearsun protectiona windbreaker

Sea temperature near Lewes in May

The nearest coast averages about 11°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 29 km away) is warmest in August at about 17°C and coldest in March near 8°C.

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea temperature (°C)	10	9	8	9	11	13	16	17	17	16	14	12
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Cool	Cool	Cool	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	10	Bracing
Feb	9	Bracing
Mar	8	Bracing
Apr	9	Bracing
May	11	Bracing
Jun	13	Bracing
Jul	16	Cool
Aug	17	Cool
Sep	17	Cool
Oct	16	Cool
Nov	14	Bracing
Dec	12	Bracing

UV index in Lewes 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 Lewes 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	1	1	3	4	6	6	6	6	4	2	1	1
Level	Low	Low	Moderate	Moderate	High	High	High	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	3	Moderate
Apr	4	Moderate
May	6	High
Jun	6	High
Jul	6	High
Aug	6	High
Sep	4	Moderate
Oct	2	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Lewes?

Lewes sits at 50.9°N, 0.0°E, 27 m above sea level, in United Kingdom. The nearest listed city is Rottingdean, 9.0 km away.

Topography around Lewes

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

Within 3 km, the terrain around Lewes has only modest variations in elevation — a maximum elevation change of 161 m around an average of 38 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 247 m; within 80 km, significant variations in elevation — a maximum elevation change of 302 m.

The land around Lewes is covered by grassland (51%), cropland (23%) and trees (20%) within 3 km, grassland (41%) and trees (21%) within 16 km, and water (35%), grassland (23%) and trees (22%) within 80 km.

3 km

161 m

grassland 51%

16 km

247 m

grassland 41%

80 km

302 m

water 35%

treesgrasslandcroplandartificial surfaceswater

← April Lewes year-round climate June →Best places to visit in May

May weather nearby: Rottingdean 9.0 km · Peacehaven 9.0 km · Brighton 12 km · Uckfield 12 km · Seaford 13 km · Hove 13 km · Burgess Hill 14 km · Haywards Heath 16 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

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 Lewes (50.874°, 0.0088°, elevation 27 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).

	Avg high (°C)	Avg low (°C)
1	12	9
2	12	9
3	12	9
4	12	9
5	12	9
6	12	9
7	12	9
8	12	10
9	12	10
10	12	10
11	12	10
12	12	10
13	13	10
14	13	10
15	13	10
16	13	10
17	13	10
18	13	10
19	13	11
20	13	11
21	13	11
22	13	11
23	13	11
24	13	11
25	14	11
26	14	11
27	14	11
28	14	11
29	14	11
30	14	12
31	14	12

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	44	56
13	44	56
14	44	56
15	43	57
16	44	56
17	44	56
18	43	57
19	45	55
20	45	55
21	45	55
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	44	56
31	46	54

	Rain chance (%)
1	30
2	30
3	29
4	28
5	28
6	27
7	27
8	27
9	27
10	27
11	28
12	28
13	29
14	29
15	30
16	30
17	30
18	30
19	30
20	30
21	30
22	30
23	30
24	29
25	29
26	29
27	28
28	28
29	28
30	28
31	29

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	98	2
22	98	2
23	97	3
24	97	3
25	97	3
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	94	6

	Avg high (°C)	Avg low (°C)
1	12	9
2	12	9
3	12	9
4	12	9
5	12	9
6	12	9
7	12	9
8	12	10
9	12	10
10	12	10
11	12	10
12	12	10
13	13	10
14	13	10
15	13	10
16	13	10
17	13	10
18	13	10
19	13	11
20	13	11
21	13	11
22	13	11
23	13	11
24	13	11
25	14	11
26	14	11
27	14	11
28	14	11
29	14	11
30	14	12
31	14	12

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	44	56
13	44	56
14	44	56
15	43	57
16	44	56
17	44	56
18	43	57
19	45	55
20	45	55
21	45	55
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	44	56
31	46	54

	Rain chance (%)
1	30
2	30
3	29
4	28
5	28
6	27
7	27
8	27
9	27
10	27
11	28
12	28
13	29
14	29
15	30
16	30
17	30
18	30
19	30
20	30
21	30
22	30
23	30
24	29
25	29
26	29
27	28
28	28
29	28
30	28
31	29

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	98	2
22	98	2
23	97	3
24	97	3
25	97	3
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	94	6

	Avg high (°C)	Avg low (°C)
1	12	9
2	12	9
3	12	9
4	12	9
5	12	9
6	12	9
7	12	9
8	12	10
9	12	10
10	12	10
11	12	10
12	12	10
13	13	10
14	13	10
15	13	10
16	13	10
17	13	10
18	13	10
19	13	11
20	13	11
21	13	11
22	13	11
23	13	11
24	13	11
25	14	11
26	14	11
27	14	11
28	14	11
29	14	11
30	14	12
31	14	12

	Clearer (%)	Cloudier (%)
1	44	56
2	44	56
3	45	55
4	44	56
5	44	56
6	43	57
7	43	57
8	43	57
9	43	57
10	43	57
11	43	57
12	44	56
13	44	56
14	44	56
15	43	57
16	44	56
17	44	56
18	43	57
19	45	55
20	45	55
21	45	55
22	45	55
23	45	55
24	45	55
25	44	56
26	44	56
27	45	55
28	45	55
29	45	55
30	44	56
31	46	54

	Rain chance (%)
1	30
2	30
3	29
4	28
5	28
6	27
7	27
8	27
9	27
10	27
11	28
12	28
13	29
14	29
15	30
16	30
17	30
18	30
19	30
20	30
21	30
22	30
23	30
24	29
25	29
26	29
27	28
28	28
29	28
30	28
31	29

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	99	1
17	99	1
18	99	1
19	99	1
20	99	1
21	98	2
22	98	2
23	97	3
24	97	3
25	97	3
26	96	4
27	96	4
28	96	4
29	95	5
30	95	5
31	94	6