Plymouth weather in July

In July, Plymouth sees average daytime highs of 17°C and overnight lows near 15°C, with 61 mm of rain across 10.5 wet days and about 15.7 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 17°C through the month. The sky is clear or mostly clear about 21% of the time in July, and the air most often feels comfortable.

Daylight stretches from about 16 h 12 min at the start of July to 15 h 12 min by month's end. Set against the rest of the year, July is Plymouth's 3rd-clearest and 12th-windiest month. For the whole year in context, see Plymouth's year-round climate.

Daytime high
17°
2nd warmest
Overnight low
15°
11th coldest
Rainfall
61 mm
10.5 wet days
Daylight
15 h 48 min
4:28 AM – 8:16 PM
Cloud cover
65%
3rd clearest
Wind
19 km/h
12th windiest
Solar energy
5.51 kWh/m²
Travel score
5.6
out of 10

Plymouth is city in Devon, England.

Air quality
Moderate
PM2.5 11.1 µg/m³ · 2019
Density
3,282/km²
people per km²

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 17°C through the month.

A typical July day in Plymouth reaches about 17°C in the afternoon and slips back to 15°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 19°C. Set against its neighbours, July runs about 2°C warmer than June and on par with August.

10°13°15°18°20°151015202531
Avg high (°C)Avg low (°C)
11714
21714
31714
41714
51714
61714
71714
81714
91714
101715
111715
121715
131715
141715
151715
161715
171815
181815
191815
201815
211815
221815
231815
241815
251815
261815
271815
281815
291815
301815
311815

Plymouth weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan / 10215.58.31.6
Feb / 7611.99.71.5
Mar10° / 6711.911.51.9
Apr11° / 6311.513.52.6
May13° / 10°6110.815.23.6
Jun16° / 13°6110.616.14.6
Jul17° / 15°6110.515.75.6
Aug18° / 15°7011.214.35.6
Sep16° / 14°6110.312.45.0
Oct14° / 12°10414.510.53.7
Nov12° / 11215.48.82.6
Dec10° / 10915.17.92.0

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 20% of July, with mostly cloudy or overcast conditions the remaining 60%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23664
33664
43664
53664
63664
73862
83862
93961
103961
114060
124159
134159
144258
154357
164357
174357
184357
194357
204258
214258
224258
234357
244258
254357
264357
274258
284159
294060
304060
314159

Chance of precipitation in July

Any precipitation

Plymouth gets around 61 mm of rain over 10.5 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 33% and peaks near 37% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
237
337
436
536
636
735
835
934
1034
1133
1232
1332
1431
1531
1631
1731
1831
1931
2031
2131
2232
2332
2432
2533
2633
2733
2833
2933
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 53% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
152453
251463
349474
448484
547495
646495
745495
844506
943516
1043507
1142517
1241518
1340519
1438539
15375310
16365410
17355411
18345511
19335611
20325612
21315712
22305812
23305713
24295813
25285913
26285814
27275815
28275815
29265816
30265816
31265717

Wind in July

Winds average 19 km/h in July, the calmest month.

Across July, daily wind ranges from about 19 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
520light breeze
620light breeze
720light breeze
820light breeze
920light breeze
1020light breeze
1120light breeze
1220light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2519light breeze
2619light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 16 h 12 min at the start of July to 15 h 12 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 4:15 AM to 4:47 AM, and sunset from 8:25 PM to 7:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
116.24:158:25
216.14:168:24
316.14:178:24
416.14:178:24
516.14:188:23
616.14:198:23
716.04:208:22
816.04:208:22
916.04:218:21
1016.04:228:21
1115.94:238:20
1215.94:248:19
1315.94:258:19
1415.94:268:18
1515.84:278:17
1615.84:288:16
1715.84:298:15
1815.74:318:14
1915.74:328:13
2015.74:338:12
2115.64:348:11
2215.64:358:10
2315.54:378:09
2415.54:388:07
2515.44:398:06
2615.44:418:05
2715.44:428:04
2815.34:438:02
2915.34:458:01
3015.24:467:59
3115.24:477:58

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.51 kWh/m².

For context, solar energy here swings from a low near 0.75 kWh/m² to a high of 5.82 kWh/m² in June across the year — July's 5.51 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in July

Is July a good time to visit Plymouth?

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

5.6
Sightseeing
1st-best month of the year
1.5
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Plymouth for sightseeing.

What to pack for Plymouth in July

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

In July, Plymouth sees daytime highs around 17°C and nights near 15°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Plymouth in July

The nearest coast averages about 16°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 km away) is warmest in August at about 17°C and coldest in March near 9°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
Mar9Bracing
Apr10Bracing
May12Bracing
Jun14Bracing
Jul16Cool
Aug17Cool
Sep16Cool
Oct15Bracing
Nov13Bracing
Dec12Bracing

UV index in Plymouth 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 Plymouth peaks around August 13 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighModerateLowAug 13UV 6Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar3Moderate
Apr5Moderate
May6High
Jun6High
Jul6High
Aug7High
Sep5Moderate
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Plymouth?

Plymouth sits at 50.4°N, 4.1°W, 14 m above sea level, in United Kingdom. The nearest listed city is Plymstock, 4.0 km away.

Topography around Plymouth

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

Within 3 km, the terrain around Plymouth has only modest variations in elevation — a maximum elevation change of 110 m around an average of 25 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 492 m; within 80 km, large variations in elevation — a maximum elevation change of 651 m.

The land around Plymouth is covered by artificial surfaces (45%) and water (29%) within 3 km, water (36%) and grassland (31%) within 16 km, and water (48%) and grassland (35%) within 80 km.

3 km
110 m
16 km
492 m
80 km
651 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Plymstock 4.0 km · Saltash 7.0 km · Paignton 41 km · Newton Abbot 41 km · Bodmin 43 km · Brixham 45 km · St Austell 45 km · Torquay 45 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 Plymouth (50.3715°, -4.143°, elevation 14 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).