Dumbarton weather in June

In June, Dumbarton sees average daytime highs of 16°C and overnight lows near 9°C, with 91 mm of rain across 14.7 wet days and about 17.2 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 16°C through the month. The sky is clear or mostly clear about 6% of the time in June, and the air most often feels dry.

Daylight stretches from about 16 h 54 min at the start of June to 17 h 18 min by month's end. Set against the rest of the year, June is Dumbarton's 10th-clearest and 10th-windiest month. For the whole year in context, see Dumbarton's year-round climate.

Daytime high: 16°; 3rd warmest
Overnight low: 9°; 10th coldest
Rainfall: 91 mm; 14.7 wet days
Daylight: 17 h 18 min; 3:40 AM – 8:57 PM
Cloud cover: 79%; 10th clearest
Wind: 12 km/h; 10th windiest
Solar energy: 4.57 kWh/m²
Travel score: 4.2; out of 10

Dumbarton is town and burgh in West Dunbartonshire, Scotland, UK.

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

← May Dumbarton year-round climate July →Best places to visit in June

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

Temperature in June

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 16°C through the month.

A typical June day in Dumbarton reaches about 16°C in the afternoon and slips back to 9°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 13°C and 20°C. Set against its neighbours, June runs about 2°C warmer than May and about 2°C cooler than July.

	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
Avg high (°C)	15	15	15	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	16	17	17	17	17	17	17
Avg low (°C)	8	8	8	9	9	9	9	9	9	9	9	9	9	9	9	9	10	10	10	10	10	10	10	10	10	10	10	10	10	11

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

How June really feels in Dumbarton

Once humidity and wind are folded in, June 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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

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

Dumbarton weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	6° / 2°	148	17.9	4.4	7.4	0.4
Feb	7° / 2°	118	15.4	3.7	9.2	0.6
Mar	8° / 3°	106	15.5	2.5	11.4	1.3
Apr	11° / 4°	85	14.4	0.8	13.8	2.3
May	14° / 7°	86	14.6	0.1	16	3.5
Jun	16° / 9°	91	14.7	0	17.2	4.2
Jul	18° / 11°	101	16	0	16.7	4.7
Aug	17° / 11°	113	16.9	0	14.8	4.6
Sep	15° / 9°	101	14.3	0	12.5	4.0
Oct	12° / 7°	142	16.3	0	10.1	2.6
Nov	9° / 4°	132	17	0.6	8	1.3
Dec	6° / 2°	142	16.6	2.8	6.8	0.5

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 13% of June, with mostly cloudy or overcast conditions the remaining 81%.

	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
Clearer (%)	23	23	23	22	22	21	20	20	18	17	17	17	17	17	17	17	17	17	17	17	17	17	17	17	18	18	19	19	19	18
Cloudier (%)	77	77	77	78	78	79	80	80	82	83	83	83	83	83	83	83	83	83	83	83	83	83	83	83	82	82	81	81	81	82

	Clearer (%)	Cloudier (%)
1	23	77
2	23	77
3	23	77
4	22	78
5	22	78
6	21	79
7	20	80
8	20	80
9	18	82
10	17	83
11	17	83
12	17	83
13	17	83
14	17	83
15	17	83
16	17	83
17	17	83
18	17	83
19	17	83
20	17	83
21	17	83
22	17	83
23	17	83
24	17	83
25	18	82
26	18	82
27	19	81
28	19	81
29	19	81
30	18	82

Chance of precipitation in June

Any precipitation

Dumbarton gets around 91 mm of rain over 14.7 wet days in June. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 49% and peaks near 50% 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
Rain chance (%)	47	47	47	47	47	47	48	48	48	49	49	49	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	50	49	49

	Rain chance (%)
1	47
2	47
3	47
4	47
5	47
6	47
7	48
8	48
9	48
10	49
11	49
12	49
13	50
14	50
15	50
16	50
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	50
25	50
26	50
27	50
28	50
29	49
30	49

Humidity in June

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, June lands in the dry band about 93% 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
Dry (%)	97	97	97	97	97	97	96	96	96	96	95	95	95	95	94	94	94	93	93	93	92	92	91	91	89	89	88	87	86	85
Comfortable (%)	3	3	3	3	3	3	4	4	4	4	5	5	5	5	6	6	6	7	7	7	8	8	9	9	10	10	11	12	13	14
Humid (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1

	Dry (%)	Comfortable (%)	Humid (%)
1	97	3	0
2	97	3	0
3	97	3	0
4	97	3	0
5	97	3	0
6	97	3	0
7	96	4	0
8	96	4	0
9	96	4	0
10	96	4	0
11	95	5	0
12	95	5	0
13	95	5	0
14	95	5	0
15	94	6	0
16	94	6	0
17	94	6	0
18	93	7	0
19	93	7	0
20	93	7	0
21	92	8	0
22	92	8	0
23	91	9	0
24	91	9	0
25	89	10	1
26	89	10	1
27	88	11	1
28	87	12	1
29	86	13	1
30	85	14	1

Wind in June

Winds average 12 km/h in June.

Across June, daily wind ranges from about 12 km/h on the calmest days to 12 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
Wind speed (km/h)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12
Feels	light breeze	light breeze	light breeze	light breeze	light breeze	calm	calm	calm	calm	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	calm	calm	calm

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

Sunrise & sunset in June

DaylightNight

Daylight runs from about 16 h 54 min at the start of June to 17 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over June. Sunrise moves from 3:50 AM to 3:44 AM, and sunset from 8:41 PM to 8:59 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
Daylight (h)	16.9	16.9	16.9	17.0	17.0	17.0	17.1	17.1	17.1	17.2	17.2	17.2	17.2	17.2	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3	17.3
Sunrise (AM)	3:50	3:49	3:48	3:47	3:46	3:45	3:45	3:44	3:43	3:43	3:42	3:42	3:41	3:41	3:40	3:40	3:40	3:40	3:40	3:40	3:40	3:40	3:40	3:41	3:41	3:41	3:42	3:42	3:43	3:44
Sunset (PM)	8:41	8:43	8:44	8:45	8:47	8:48	8:49	8:50	8:51	8:52	8:53	8:54	8:55	8:55	8:56	8:57	8:57	8:58	8:58	8:59	8:59	8:59	9:00	9:00	9:00	9:00	9:00	9:00	8:59	8:59

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	16.9	3:50	8:41
2	16.9	3:49	8:43
3	16.9	3:48	8:44
4	17.0	3:47	8:45
5	17.0	3:46	8:47
6	17.0	3:45	8:48
7	17.1	3:45	8:49
8	17.1	3:44	8:50
9	17.1	3:43	8:51
10	17.2	3:43	8:52
11	17.2	3:42	8:53
12	17.2	3:42	8:54
13	17.2	3:41	8:55
14	17.2	3:41	8:55
15	17.3	3:40	8:56
16	17.3	3:40	8:57
17	17.3	3:40	8:57
18	17.3	3:40	8:58
19	17.3	3:40	8:58
20	17.3	3:40	8:59
21	17.3	3:40	8:59
22	17.3	3:40	8:59
23	17.3	3:40	9:00
24	17.3	3:41	9:00
25	17.3	3:41	9:00
26	17.3	3:41	9:00
27	17.3	3:42	9:00
28	17.3	3:42	9:00
29	17.3	3:43	8:59
30	17.3	3:44	8:59

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 4.57 kWh/m².

For context, solar energy here swings from a low near 0.34 kWh/m² to a high of 4.66 kWh/m² in May across the year — June's 4.57 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
Solar energy (kWh/m²)	4.8	4.8	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.7	4.6	4.6	4.6	4.6	4.6	4.6	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.4	4.4
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

	Solar energy (kWh/m²)	Level
1	4.8	Bright
2	4.8	Bright
3	4.7	Bright
4	4.7	Bright
5	4.7	Bright
6	4.7	Bright
7	4.7	Bright
8	4.7	Bright
9	4.7	Bright
10	4.7	Bright
11	4.6	Bright
12	4.6	Bright
13	4.6	Bright
14	4.6	Bright
15	4.6	Bright
16	4.6	Bright
17	4.5	Bright
18	4.5	Bright
19	4.5	Bright
20	4.5	Bright
21	4.5	Bright
22	4.5	Bright
23	4.5	Bright
24	4.5	Bright
25	4.5	Bright
26	4.5	Bright
27	4.5	Bright
28	4.5	Bright
29	4.4	Bright
30	4.4	Bright

Planning a trip in June

Is June a good time to visit Dumbarton?

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

4.2

Sightseeing

3rd-best month of the year

0.5

Beach & pool

3rd-best month of the year

June is a reasonable time to visit Dumbarton for sightseeing.

What to pack for Dumbarton in June

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

In June, Dumbarton sees daytime highs around 16°C and nights near 9°C. Pack rain gear. Worth having: a warm layer and sun protection. About 15 days see rain.

rain geara warm layersun protection

Sea temperature near Dumbarton in June

The nearest coast averages about 13°C in June — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 35 km away) is warmest in August at about 15°C and coldest in February near 7°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)	8	7	7	8	10	13	15	15	14	12	11	9
Comfort	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Bracing	Cool	Bracing	Bracing	Bracing	Bracing

	Sea temperature (°C)	Comfort
Jan	8	Bracing
Feb	7	Bracing
Mar	7	Bracing
Apr	8	Bracing
May	10	Bracing
Jun	13	Bracing
Jul	15	Bracing
Aug	15	Cool
Sep	14	Bracing
Oct	12	Bracing
Nov	11	Bracing
Dec	9	Bracing

UV index in Dumbarton in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Dumbarton peaks around June 18 at about 5 (high) — a little sun protection helps at midday. It bottoms out near December 20 at about 0 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 5 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	0	1	2	3	5	5	5	5	3	2	1	0
Level	Low	Low	Moderate	Moderate	Moderate	High	Moderate	Moderate	Moderate	Low	Low	Low

	UV index (midday)	Level
Jan	0	Low
Feb	1	Low
Mar	2	Moderate
Apr	3	Moderate
May	5	Moderate
Jun	5	High
Jul	5	Moderate
Aug	5	Moderate
Sep	3	Moderate
Oct	2	Low
Nov	1	Low
Dec	0	Low

Location & terrain

Where is Dumbarton?

Dumbarton sits at 55.9°N, 4.6°W, 4 m above sea level, in United Kingdom. The nearest listed city is Vale of Leven, 3.0 km away.

Topography around Dumbarton

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

Within 3 km, the terrain around Dumbarton has only modest variations in elevation — a maximum elevation change of 172 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 533 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,210 m.

The land around Dumbarton is covered by grassland (30%), water (28%) and trees (25%) within 3 km, grassland (53%) and trees (23%) within 16 km, and grassland (56%) within 80 km.

3 km

172 m

grassland 30%

16 km

533 m

grassland 53%

80 km

1,210 m

grassland 56%

treesgrasslandcroplandartificial surfaceswater

← May Dumbarton year-round climate July →Best places to visit in June

June weather nearby: Vale of Leven 3.0 km · Erskine 9.0 km · Clydebank 11 km · Greenock 12 km · Johnstone 13 km · Renfrew 14 km · Bearsden 15 km · Paisley 15 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 Dumbarton (55.9443°, -4.5706°, elevation 4 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	15	8
2	15	8
3	15	8
4	16	9
5	16	9
6	16	9
7	16	9
8	16	9
9	16	9
10	16	9
11	16	9
12	16	9
13	16	9
14	16	9
15	16	9
16	16	9
17	16	10
18	16	10
19	16	10
20	16	10
21	16	10
22	16	10
23	16	10
24	16	10
25	17	10
26	17	10
27	17	10
28	17	10
29	17	10
30	17	11

	Clearer (%)	Cloudier (%)
1	23	77
2	23	77
3	23	77
4	22	78
5	22	78
6	21	79
7	20	80
8	20	80
9	18	82
10	17	83
11	17	83
12	17	83
13	17	83
14	17	83
15	17	83
16	17	83
17	17	83
18	17	83
19	17	83
20	17	83
21	17	83
22	17	83
23	17	83
24	17	83
25	18	82
26	18	82
27	19	81
28	19	81
29	19	81
30	18	82

	Rain chance (%)
1	47
2	47
3	47
4	47
5	47
6	47
7	48
8	48
9	48
10	49
11	49
12	49
13	50
14	50
15	50
16	50
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	50
25	50
26	50
27	50
28	50
29	49
30	49

	Dry (%)	Comfortable (%)	Humid (%)
1	97	3	0
2	97	3	0
3	97	3	0
4	97	3	0
5	97	3	0
6	97	3	0
7	96	4	0
8	96	4	0
9	96	4	0
10	96	4	0
11	95	5	0
12	95	5	0
13	95	5	0
14	95	5	0
15	94	6	0
16	94	6	0
17	94	6	0
18	93	7	0
19	93	7	0
20	93	7	0
21	92	8	0
22	92	8	0
23	91	9	0
24	91	9	0
25	89	10	1
26	89	10	1
27	88	11	1
28	87	12	1
29	86	13	1
30	85	14	1

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

	Clearer (%)	Cloudier (%)
1	23	77
2	23	77
3	23	77
4	22	78
5	22	78
6	21	79
7	20	80
8	20	80
9	18	82
10	17	83
11	17	83
12	17	83
13	17	83
14	17	83
15	17	83
16	17	83
17	17	83
18	17	83
19	17	83
20	17	83
21	17	83
22	17	83
23	17	83
24	17	83
25	18	82
26	18	82
27	19	81
28	19	81
29	19	81
30	18	82

	Rain chance (%)
1	47
2	47
3	47
4	47
5	47
6	47
7	48
8	48
9	48
10	49
11	49
12	49
13	50
14	50
15	50
16	50
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	50
25	50
26	50
27	50
28	50
29	49
30	49

	Dry (%)	Comfortable (%)	Humid (%)
1	97	3	0
2	97	3	0
3	97	3	0
4	97	3	0
5	97	3	0
6	97	3	0
7	96	4	0
8	96	4	0
9	96	4	0
10	96	4	0
11	95	5	0
12	95	5	0
13	95	5	0
14	95	5	0
15	94	6	0
16	94	6	0
17	94	6	0
18	93	7	0
19	93	7	0
20	93	7	0
21	92	8	0
22	92	8	0
23	91	9	0
24	91	9	0
25	89	10	1
26	89	10	1
27	88	11	1
28	87	12	1
29	86	13	1
30	85	14	1

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

	Clearer (%)	Cloudier (%)
1	23	77
2	23	77
3	23	77
4	22	78
5	22	78
6	21	79
7	20	80
8	20	80
9	18	82
10	17	83
11	17	83
12	17	83
13	17	83
14	17	83
15	17	83
16	17	83
17	17	83
18	17	83
19	17	83
20	17	83
21	17	83
22	17	83
23	17	83
24	17	83
25	18	82
26	18	82
27	19	81
28	19	81
29	19	81
30	18	82

	Rain chance (%)
1	47
2	47
3	47
4	47
5	47
6	47
7	48
8	48
9	48
10	49
11	49
12	49
13	50
14	50
15	50
16	50
17	50
18	50
19	50
20	50
21	50
22	50
23	50
24	50
25	50
26	50
27	50
28	50
29	49
30	49

	Dry (%)	Comfortable (%)	Humid (%)
1	97	3	0
2	97	3	0
3	97	3	0
4	97	3	0
5	97	3	0
6	97	3	0
7	96	4	0
8	96	4	0
9	96	4	0
10	96	4	0
11	95	5	0
12	95	5	0
13	95	5	0
14	95	5	0
15	94	6	0
16	94	6	0
17	94	6	0
18	93	7	0
19	93	7	0
20	93	7	0
21	92	8	0
22	92	8	0
23	91	9	0
24	91	9	0
25	89	10	1
26	89	10	1
27	88	11	1
28	87	12	1
29	86	13	1
30	85	14	1