Hailsham weather in August

In August, Hailsham sees average daytime highs of 18°C and overnight lows near 16°C, with 61 mm of rain across 9.5 wet days and about 14.3 hours of daylight. It is the 1st-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 18°C through the month. The sky is clear or mostly clear about 29% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 15 h 12 min at the start of August to 13 h 24 min by month's end. Set against the rest of the year, August is Hailsham's 2nd-clearest and 10th-windiest month. For the whole year in context, see Hailsham's year-round climate.

Daytime high
18°
1st warmest
Overnight low
16°
12th coldest
Rainfall
61 mm
9.5 wet days
Daylight
14 h 24 min
4:52 AM – 7:14 PM
Cloud cover
58%
2nd clearest
Wind
21 km/h
10th windiest
Solar energy
4.82 kWh/m²
Travel score
6.1
out of 10

Hailsham is town in East Sussex, United Kingdom.

Density
1,207/km²
people per km²

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 18°C through the month.

A typical August day in Hailsham reaches about 18°C in the afternoon and slips back to 16°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 20°C. Set against its neighbours, August runs about 1°C warmer than July and about 1°C warmer than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11816
21816
31816
41816
51816
61816
71816
81816
91816
101816
111816
121816
131816
141816
151816
161816
171816
181816
191816
201816
211816
221816
231816
241816
251816
261816
271816
281816
291816
301816
311815

Hailsham weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 9514.60.68.21.3
Feb / 6511.50.69.71.1
Mar / 509.90.311.51.6
Apr10° / 469013.52.5
May13° / 10°478.5015.23.6
Jun15° / 13°458.7016.24.8
Jul17° / 15°488.5015.85.9
Aug18° / 16°619.5014.36.1
Sep17° / 15°6610.6012.45.4
Oct15° / 12°11314.3010.44.0
Nov12° / 12115.808.72.5
Dec / 10914.40.57.81.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
25941
35941
45842
55842
65743
75644
85545
95545
105446
115347
125347
135248
145248
155149
165149
175050
185050
194852
204852
214852
224852
234753
244753
254753
264654
274753
284753
294654
304654
314654

Chance of precipitation in August

Any precipitation

Hailsham gets around 61 mm of rain over 9.5 wet days in August. 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 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
228
328
429
529
629
730
830
930
1031
1131
1231
1332
1432
1532
1632
1732
1832
1932
2032
2132
2232
2331
2431
2531
2631
2731
2830
2930
3030
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the comfortable band about 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11761220
21760230
31760230
41760230
51859230
61859230
71957231
81957231
92055241
102055241
112154241
122154241
132154241
142254231
152254231
162353231
172353231
182453230
192454220
202553220
212652220
222851210
232950210
243149200
253248200
263447190
273646180
283745180
293944170
304143170
314242160

Wind in August

Winds average 21 km/h in August.

Across August, daily wind ranges from about 20 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120breezy
220breezy
320breezy
420breezy
520breezy
620breezy
720breezy
820breezy
920breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2022breezy
2122breezy
2222breezy
2322breezy
2422breezy
2522breezy
2622breezy
2722breezy
2822breezy
2922breezy
3022breezy
3122breezy

Sunrise & sunset in August

DaylightNight

Daylight runs from about 15 h 12 min at the start of August to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 108 minutes over August. Sunrise moves from 4:30 AM to 5:16 AM, and sunset from 7:41 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
115.24:307:41
215.14:317:39
315.14:327:37
415.04:347:36
515.04:357:34
614.94:377:32
714.94:397:31
814.84:407:29
914.84:427:27
1014.74:437:25
1114.64:457:23
1214.64:467:21
1314.54:487:20
1414.54:497:18
1514.44:517:16
1614.44:527:14
1714.34:547:12
1814.24:567:10
1914.24:577:08
2014.14:597:06
2114.15:007:03
2214.05:027:01
2313.95:046:59
2413.95:056:57
2513.85:076:55
2613.75:086:53
2713.75:106:51
2813.65:126:48
2913.65:136:46
3013.55:156:44
3113.45:166:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.82 kWh/m².

For context, solar energy here swings from a low near 0.71 kWh/m² to a high of 5.9 kWh/m² in June across the year — August's 4.82 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.4Bright
45.4Bright
55.3Bright
65.3Bright
75.2Bright
85.2Bright
95.1Bright
105.1Bright
115.0Bright
125.0Bright
135.0Bright
144.9Bright
154.8Bright
164.8Bright
174.8Bright
184.7Bright
194.7Bright
204.6Bright
214.6Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.3Bright
274.3Bright
284.3Bright
294.2Bright
304.2Bright
314.1Bright
Planning a trip in August

Hazard calendar for Hailsham

In seasonPeak

In August, Hailsham sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Hailsham'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 August a good time to visit Hailsham?

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

6.1
Sightseeing
1st-best month of the year
2.1
Beach & pool
1st-best month of the year

August is a reasonable time to visit Hailsham for sightseeing.

What to pack for Hailsham in August

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

In August, Hailsham sees daytime highs around 18°C and nights near 16°C. Worth packing: rain gear, sun protection and a windbreaker. About 10 days see rain.

rain gearsun protectiona windbreaker

Sea temperature near Hailsham in August

The nearest coast averages about 17°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 26 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.

5°10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcool
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar8Bracing
Apr9Bracing
May11Bracing
Jun13Bracing
Jul16Cool
Aug17Cool
Sep17Cool
Oct16Cool
Nov14Bracing
Dec11Bracing

UV index in Hailsham in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 Hailsham peaks around July 17 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowJul 17UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr4Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Hailsham?

Hailsham sits at 50.9°N, 0.3°E, 28 m above sea level, in United Kingdom. The nearest listed city is Eastbourne, 11 km away.

Topography around Hailsham

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

Within 3 km, the terrain around Hailsham has only modest variations in elevation — a maximum elevation change of 56 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 214 m; within 80 km, significant variations in elevation — a maximum elevation change of 303 m.

The land around Hailsham is covered by grassland (53%) and trees (30%) within 3 km, grassland (44%) and trees (25%) within 16 km, and water (39%), grassland (23%) and trees (20%) within 80 km.

3 km
56 m
16 km
214 m
80 km
303 m
treesgrasslandcroplandartificial surfaceswater
August weather nearby: Eastbourne 11 km · Seaford 15 km · Bexhill-on-Sea 15 km · Uckfield 16 km · Lewes 18 km · Peacehaven 20 km · Hastings 23 km · Rottingdean 23 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 Hailsham (50.8622°, 0.2577°, elevation 28 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).