Harwich weather in July

In July, Harwich sees average daytime highs of 20°C and overnight lows near 15°C, with 57 mm of rain across 11.4 wet days and about 16 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 21°C by the end. The sky is clear or mostly clear about 22% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 16 h 24 min at the start of July to 15 h 24 min by month's end. Set against the rest of the year, July is Harwich's 1st-clearest and 12th-windiest month. For the whole year in context, see Harwich's year-round climate.

Daytime high
20°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
57 mm
11.4 wet days
Daylight
16 hours
3:59 AM – 8:02 PM
Cloud cover
63%
1st clearest
Wind
16 km/h
12th windiest
Solar energy
5.45 kWh/m²
Travel score
6.1
out of 10

Harwich is town in Essex, England.

Founded
1665

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 21°C by the end.

A typical July day in Harwich reaches about 20°C in the afternoon and slips back to 15°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 23°C. Set against its neighbours, July runs about 3°C warmer than June and on par with August.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11914
21914
31914
41914
51914
61914
71914
81914
91914
101914
111914
122014
132015
142015
152015
162015
172015
182015
192015
202015
212015
222015
232015
242015
252015
262015
272115
282115
292115
302115
312115

How July really feels in Harwich

Once humidity and wind are folded in, July 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

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

Harwich weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6012.20.88.10.9
Feb / 479.819.60.9
Mar / 4310.20.611.51.7
Apr11° / 419.3013.62.8
May14° / 10°519.7015.44.2
Jun17° / 12°5310.2016.45.4
Jul20° / 15°5711.40166.1
Aug20° / 15°6210.3014.46.1
Sep18° / 13°549.9012.45.6
Oct14° / 10°6711.7010.43.9
Nov10° / 6411.80.28.62.3
Dec / 6512.10.67.61.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in July, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 19% of July, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43961
53961
63961
73961
83961
93961
103961
113961
123961
134060
144060
154159
164159
174159
184258
194258
204258
214357
224357
234357
244357
254357
264456
274456
284357
294357
304357
314258

Chance of precipitation in July

Any precipitation

Harwich gets around 57 mm of rain over 11.4 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 36% and peaks near 39% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
438
538
639
739
839
939
1039
1138
1238
1337
1437
1536
1636
1735
1834
1934
2034
2134
2233
2333
2433
2533
2633
2733
2834
2934
3034
3134

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the comfortable band about 43% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1593560
2583660
3563770
4553870
5543970
6534070
7514180
8504280
9494390
10484390
11474490
124644100
134544100
144445110
154345120
164245120
174245130
184145140
194045150
203945160
213845170
223745180
233645180
243545190
253546190
263446200
273446200
283346210
293346210
303346210
313345221

Wind in July

Winds average 16 km/h in July, the calmest month.

Across July, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1017light breeze
1117light breeze
1217light breeze
1317light breeze
1417light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2416light breeze
2516light breeze
2616light breeze
2716light breeze
2816light breeze
2916light breeze
3016light breeze
3116light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 24 min at the start of July to 15 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over July. Sunrise moves from 3:46 AM to 4:20 AM, and sunset from 8:11 PM to 7:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.43:468:11
216.43:468:11
316.43:478:10
416.43:488:10
516.43:488:10
616.33:498:09
716.33:508:09
816.33:518:08
916.33:528:07
1016.23:538:07
1116.23:548:06
1216.23:558:05
1316.13:568:04
1416.13:578:04
1516.13:588:03
1616.03:598:02
1716.04:018:01
1816.04:028:00
1915.94:037:58
2015.94:047:57
2115.84:067:56
2215.84:077:55
2315.84:087:54
2415.74:107:52
2515.74:117:51
2615.64:137:50
2715.64:147:48
2815.54:157:47
2915.54:177:45
3015.44:187:44
3115.44:207:42

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.45 kWh/m².

For context, solar energy here swings from a low near 0.63 kWh/m² to a high of 5.63 kWh/m² in June across the year — July's 5.45 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Harwich?

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

6.1
Sightseeing
1st-best month of the year
3.0
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Harwich for sightseeing.

What to pack for Harwich in July

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

In July, Harwich sees daytime highs around 20°C and nights near 15°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Harwich in July

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

The sea offshore 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 Harwich in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 Harwich peaks around June 22 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 22UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr3Moderate
May6High
Jun6High
Jul6High
Aug6High
Sep4Moderate
Oct2Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Harwich?

Harwich sits at 51.9°N, 1.3°E, 1 m above sea level, in United Kingdom. The nearest listed city is Felixstowe, 5.0 km away.

Topography around Harwich

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

Within 3 km, the terrain around Harwich has only modest variations in elevation — a maximum elevation change of 28 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 63 m; within 80 km, only modest variations in elevation — a maximum elevation change of 153 m.

The land around Harwich is covered by water (56%) and artificial surfaces (22%) within 3 km, water (44%) and cropland (27%) within 16 km, and cropland (37%) and water (34%) within 80 km.

3 km
28 m
16 km
63 m
80 km
153 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Felixstowe 5.0 km · Walton-on-the-Naze 10 km · Frinton-on-Sea 13 km · Ipswich 16 km · Clacton-on-Sea 19 km · Colchester 27 km · Stowmarket 34 km · Sudbury 39 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 Harwich (51.9419°, 1.2844°, elevation 1 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).