Sumy weather in June

In June, Sumy sees average daytime highs of 24°C and overnight lows near 14°C, with 67 mm of rain across 11 wet days and about 16.2 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 32% of the time in June, and the air most often feels dry.

Daylight stretches from about 15 h 54 min at the start of June to 16 h 18 min by month's end. Set against the rest of the year, June is Sumy's 3rd-clearest and 10th-windiest month. For the whole year in context, see Sumy's year-round climate.

Daytime high: 24°; 3rd warmest
Overnight low: 14°; 10th coldest
Rainfall: 67 mm; 11 wet days
Daylight: 16 h 18 min; 3:33 AM – 7:49 PM
Cloud cover: 56%; 3rd clearest
Wind: 12 km/h; 10th windiest
Solar energy: 5.89 kWh/m²
Travel score: 6.8; out of 10

Sumy is city and capital of Sumy Oblast in north-eastern Ukraine.

Density: 1,769/km²; people per km²
Founded: 1652

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

← May Sumy 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

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical June day in Sumy reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, June runs about 4°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)	22	22	22	23	23	23	23	23	23	23	23	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24
Avg low (°C)	12	12	12	12	13	13	13	13	13	13	13	14	14	14	14	14	14	14	14	14	14	14	14	14	15	15	15	15	15	15

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

How June really feels in Sumy

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.

Sumy weather by month

How June compares with the rest of the year at a glance. June is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	-3° / -7°	42	9.9	9.1	8.2	0.0
Feb	-2° / -7°	35	8.9	7.3	9.7	0.0
Mar	4° / -3°	42	9.7	5.6	11.5	0.3
Apr	13° / 4°	43	9.4	0.8	13.5	3.8
May	20° / 10°	62	11.3	0	15.3	6.2
Jun	24° / 14°	67	11	0	16.2	6.8
Jul	26° / 15°	73	11.2	0	15.8	6.7
Aug	25° / 14°	47	7.6	0	14.3	7.3
Sep	19° / 9°	51	8.2	0	12.4	6.2
Oct	11° / 4°	50	8.8	0.8	10.4	2.9
Nov	3° / -1°	41	8.1	3.2	8.7	0.1
Dec	-1° / -6°	41	9.2	7.4	7.8	0.0

Cloud cover in June

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in June.

Beyond those clear spells, partly cloudy skies cover about 21% of June, with mostly cloudy or overcast conditions the remaining 47%.

	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 (%)	51	52	53	53	54	54	55	56	56	57	57	56	56	55	54	54	53	52	51	51	50	50	49	50	50	50	50	51	52	52
Cloudier (%)	49	48	47	47	46	46	45	44	44	43	43	44	44	45	46	46	47	48	49	49	50	50	51	50	50	50	50	49	48	48

	Clearer (%)	Cloudier (%)
1	51	49
2	52	48
3	53	47
4	53	47
5	54	46
6	54	46
7	55	45
8	56	44
9	56	44
10	57	43
11	57	43
12	56	44
13	56	44
14	55	45
15	54	46
16	54	46
17	53	47
18	52	48
19	51	49
20	51	49
21	50	50
22	50	50
23	49	51
24	50	50
25	50	50
26	50	50
27	50	50
28	51	49
29	52	48
30	52	48

Chance of precipitation in June

Any precipitation

Sumy gets around 67 mm of rain over 11 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 37% and peaks near 39% 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 (%)	35	35	34	34	34	34	34	34	35	35	35	36	36	37	37	38	38	39	39	39	39	39	39	39	39	38	38	38	38	38

	Rain chance (%)
1	35
2	35
3	34
4	34
5	34
6	34
7	34
8	34
9	35
10	35
11	35
12	36
13	36
14	37
15	37
16	38
17	38
18	39
19	39
20	39
21	39
22	39
23	39
24	39
25	39
26	38
27	38
28	38
29	38
30	38

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 58% 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 (%)	75	75	73	72	71	69	67	66	64	63	61	60	59	57	55	55	54	53	53	52	52	51	51	51	51	50	49	48	47	46
Comfortable (%)	20	20	21	22	22	23	24	24	25	25	26	26	26	27	27	26	26	26	26	25	25	24	24	24	24	24	24	25	25	26
Humid (%)	5	5	6	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	20	21	21	22	22	22	22	23	23	23	24	24
Muggy (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	2	2	3	3	3	3	4	4	4	4	4

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	75	20	5	0
2	75	20	5	0
3	73	21	6	0
4	72	22	6	0
5	71	22	7	0
6	69	23	8	0
7	67	24	9	0
8	66	24	10	0
9	64	25	11	0
10	63	25	12	0
11	61	26	13	0
12	60	26	14	0
13	59	26	15	0
14	57	27	16	0
15	55	27	17	1
16	55	26	18	1
17	54	26	19	1
18	53	26	20	1
19	53	26	20	1
20	52	25	21	2
21	52	25	21	2
22	51	24	22	3
23	51	24	22	3
24	51	24	22	3
25	51	24	22	3
26	50	24	23	4
27	49	24	23	4
28	48	25	23	4
29	47	25	24	4
30	46	26	24	4

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	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	light breeze	light breeze	light breeze	light breeze	light breeze	light breeze	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	light breeze
7	12	light breeze
8	12	light breeze
9	12	light breeze
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	light breeze
29	12	light breeze
30	12	calm

Sunrise & sunset in June

DaylightNight

Daylight runs from about 15 h 54 min at the start of June to 16 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 3:40 AM to 3:36 AM, and sunset from 7:37 PM to 7:52 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)	15.9	16.0	16.0	16.0	16.1	16.1	16.1	16.1	16.2	16.2	16.2	16.2	16.2	16.2	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3	16.3
Sunrise (AM)	3:40	3:39	3:38	3:38	3:37	3:36	3:36	3:35	3:35	3:34	3:34	3:34	3:34	3:33	3:33	3:33	3:33	3:33	3:33	3:33	3:33	3:33	3:33	3:34	3:34	3:34	3:35	3:35	3:36	3:36
Sunset (PM)	7:37	7:38	7:39	7:40	7:41	7:42	7:43	7:44	7:44	7:45	7:46	7:47	7:47	7:48	7:49	7:49	7:50	7:50	7:50	7:51	7:51	7:51	7:52	7:52	7:52	7:52	7:52	7:52	7:52	7:52

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	15.9	3:40	7:37
2	16.0	3:39	7:38
3	16.0	3:38	7:39
4	16.0	3:38	7:40
5	16.1	3:37	7:41
6	16.1	3:36	7:42
7	16.1	3:36	7:43
8	16.1	3:35	7:44
9	16.2	3:35	7:44
10	16.2	3:34	7:45
11	16.2	3:34	7:46
12	16.2	3:34	7:47
13	16.2	3:34	7:47
14	16.2	3:33	7:48
15	16.3	3:33	7:49
16	16.3	3:33	7:49
17	16.3	3:33	7:50
18	16.3	3:33	7:50
19	16.3	3:33	7:50
20	16.3	3:33	7:51
21	16.3	3:33	7:51
22	16.3	3:33	7:51
23	16.3	3:33	7:52
24	16.3	3:34	7:52
25	16.3	3:34	7:52
26	16.3	3:34	7:52
27	16.3	3:35	7:52
28	16.3	3:35	7:52
29	16.3	3:36	7:52
30	16.3	3:36	7:52

Solar energy in June

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in June, about 5.89 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 0.58 kWh/m² to a high of 5.89 kWh/m² in June across the year — June's 5.89 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)	5.8	5.8	5.8	5.9	5.9	5.9	5.9	6.0	6.0	6.0	6.0	6.0	6.0	5.9	5.9	5.9	5.9	5.9	5.9	5.9	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8	5.8
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	5.8	Bright
2	5.8	Bright
3	5.8	Bright
4	5.9	Bright
5	5.9	Bright
6	5.9	Bright
7	5.9	Bright
8	6.0	Bright
9	6.0	Bright
10	6.0	Bright
11	6.0	Bright
12	6.0	Bright
13	6.0	Bright
14	5.9	Bright
15	5.9	Bright
16	5.9	Bright
17	5.9	Bright
18	5.9	Bright
19	5.9	Bright
20	5.9	Bright
21	5.8	Bright
22	5.8	Bright
23	5.8	Bright
24	5.8	Bright
25	5.8	Bright
26	5.8	Bright
27	5.8	Bright
28	5.8	Bright
29	5.8	Bright
30	5.8	Bright

Planning a trip in June

Is June a good time to visit Sumy?

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

6.8

Sightseeing

2nd-best month of the year

5.5

Beach & pool

3rd-best month of the year

June is a reasonable time to visit Sumy for sightseeing.

What to pack for Sumy in June

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

In June, Sumy sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Sumy in June

LowModerateHighVery highExtreme

Clear-sky midday UV in June peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sumy peaks around June 23 at about 7 (high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 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	2	5	4	7	7	5	5	2	1	1
Level	Low	Low	Moderate	Moderate	Moderate	High	High	High	Moderate	Moderate	Low	Low

	UV index (midday)	Level
Jan	1	Low
Feb	1	Low
Mar	2	Moderate
Apr	5	Moderate
May	4	Moderate
Jun	7	High
Jul	7	High
Aug	5	High
Sep	5	Moderate
Oct	2	Moderate
Nov	1	Low
Dec	1	Low

Location & terrain

Where is Sumy?

Sumy sits at 50.9°N, 34.8°E, 171 m above sea level, in Ukraine. The nearest listed city is Kovpakivskyi, 1.0 km away.

Topography around Sumy

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

Within 3 km, the terrain around Sumy has only modest variations in elevation — a maximum elevation change of 53 m around an average of 142 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 144 m; within 80 km, only modest variations in elevation — a maximum elevation change of 180 m.

The land around Sumy is covered by artificial surfaces (53%) and trees (38%) within 3 km, cropland (40%) and trees (34%) within 16 km, and cropland (62%) and trees (23%) within 80 km.

3 km

53 m

artificial surfaces 53%

16 km

144 m

cropland 40%

80 km

180 m

cropland 62%

treesgrasslandcroplandartificial surfaceswater

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

June weather nearby: Kovpakivskyi 1.0 km · Zarichnyi 2.0 km · Bilopillia 43 km · Lebedyn 43 km · Trostyanets 50 km · Okhtyrka 68 km · Ryl’sk 73 km · Hadyach 83 km

Ukraine travel facts

Travel advisory: Level 4; Do Not Travel
Power plugs: Type C / F; 230 V · 50 Hz
Prices: ≈ 31% of US; price level, 2025
GDP per capita: $5,866; 2025
Happiness: 4.7 / 10; World Happiness, 2025
Safe drinking water: 88%; of population, 2024
Homicide rate: 3.8; per 100k, 2021
Road deaths: 10.2; per 100k/yr, 2019
Income group: Upper middle; World Bank
English: Moderate; EF EPI 526

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 Sumy (50.9174°, 34.7991°, elevation 171 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. 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	22	12
2	22	12
3	22	12
4	23	12
5	23	13
6	23	13
7	23	13
8	23	13
9	23	13
10	23	13
11	23	13
12	24	14
13	24	14
14	24	14
15	24	14
16	24	14
17	24	14
18	24	14
19	24	14
20	24	14
21	24	14
22	24	14
23	24	14
24	24	14
25	24	15
26	24	15
27	24	15
28	24	15
29	24	15
30	24	15

	Clearer (%)	Cloudier (%)
1	51	49
2	52	48
3	53	47
4	53	47
5	54	46
6	54	46
7	55	45
8	56	44
9	56	44
10	57	43
11	57	43
12	56	44
13	56	44
14	55	45
15	54	46
16	54	46
17	53	47
18	52	48
19	51	49
20	51	49
21	50	50
22	50	50
23	49	51
24	50	50
25	50	50
26	50	50
27	50	50
28	51	49
29	52	48
30	52	48

	Rain chance (%)
1	35
2	35
3	34
4	34
5	34
6	34
7	34
8	34
9	35
10	35
11	35
12	36
13	36
14	37
15	37
16	38
17	38
18	39
19	39
20	39
21	39
22	39
23	39
24	39
25	39
26	38
27	38
28	38
29	38
30	38

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	75	20	5	0
2	75	20	5	0
3	73	21	6	0
4	72	22	6	0
5	71	22	7	0
6	69	23	8	0
7	67	24	9	0
8	66	24	10	0
9	64	25	11	0
10	63	25	12	0
11	61	26	13	0
12	60	26	14	0
13	59	26	15	0
14	57	27	16	0
15	55	27	17	1
16	55	26	18	1
17	54	26	19	1
18	53	26	20	1
19	53	26	20	1
20	52	25	21	2
21	52	25	21	2
22	51	24	22	3
23	51	24	22	3
24	51	24	22	3
25	51	24	22	3
26	50	24	23	4
27	49	24	23	4
28	48	25	23	4
29	47	25	24	4
30	46	26	24	4

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

	Clearer (%)	Cloudier (%)
1	51	49
2	52	48
3	53	47
4	53	47
5	54	46
6	54	46
7	55	45
8	56	44
9	56	44
10	57	43
11	57	43
12	56	44
13	56	44
14	55	45
15	54	46
16	54	46
17	53	47
18	52	48
19	51	49
20	51	49
21	50	50
22	50	50
23	49	51
24	50	50
25	50	50
26	50	50
27	50	50
28	51	49
29	52	48
30	52	48

	Rain chance (%)
1	35
2	35
3	34
4	34
5	34
6	34
7	34
8	34
9	35
10	35
11	35
12	36
13	36
14	37
15	37
16	38
17	38
18	39
19	39
20	39
21	39
22	39
23	39
24	39
25	39
26	38
27	38
28	38
29	38
30	38

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	75	20	5	0
2	75	20	5	0
3	73	21	6	0
4	72	22	6	0
5	71	22	7	0
6	69	23	8	0
7	67	24	9	0
8	66	24	10	0
9	64	25	11	0
10	63	25	12	0
11	61	26	13	0
12	60	26	14	0
13	59	26	15	0
14	57	27	16	0
15	55	27	17	1
16	55	26	18	1
17	54	26	19	1
18	53	26	20	1
19	53	26	20	1
20	52	25	21	2
21	52	25	21	2
22	51	24	22	3
23	51	24	22	3
24	51	24	22	3
25	51	24	22	3
26	50	24	23	4
27	49	24	23	4
28	48	25	23	4
29	47	25	24	4
30	46	26	24	4

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

	Clearer (%)	Cloudier (%)
1	51	49
2	52	48
3	53	47
4	53	47
5	54	46
6	54	46
7	55	45
8	56	44
9	56	44
10	57	43
11	57	43
12	56	44
13	56	44
14	55	45
15	54	46
16	54	46
17	53	47
18	52	48
19	51	49
20	51	49
21	50	50
22	50	50
23	49	51
24	50	50
25	50	50
26	50	50
27	50	50
28	51	49
29	52	48
30	52	48

	Rain chance (%)
1	35
2	35
3	34
4	34
5	34
6	34
7	34
8	34
9	35
10	35
11	35
12	36
13	36
14	37
15	37
16	38
17	38
18	39
19	39
20	39
21	39
22	39
23	39
24	39
25	39
26	38
27	38
28	38
29	38
30	38

	Dry (%)	Comfortable (%)	Humid (%)	Muggy (%)
1	75	20	5	0
2	75	20	5	0
3	73	21	6	0
4	72	22	6	0
5	71	22	7	0
6	69	23	8	0
7	67	24	9	0
8	66	24	10	0
9	64	25	11	0
10	63	25	12	0
11	61	26	13	0
12	60	26	14	0
13	59	26	15	0
14	57	27	16	0
15	55	27	17	1
16	55	26	18	1
17	54	26	19	1
18	53	26	20	1
19	53	26	20	1
20	52	25	21	2
21	52	25	21	2
22	51	24	22	3
23	51	24	22	3
24	51	24	22	3
25	51	24	22	3
26	50	24	23	4
27	49	24	23	4
28	48	25	23	4
29	47	25	24	4
30	46	26	24	4