Sumy weather in April

In April, Sumy sees average daytime highs of 13°C and overnight lows near 4°C, with 43 mm of precipitation across 9.4 wet days and about 13.5 hours of daylight. It is the 6th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 10°C in the first days to 17°C by the end. The sky is clear or mostly clear about 22% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 36 min at the start of April to 14 h 24 min by month's end. Set against the rest of the year, April is Sumy's 6th-clearest and 7th-windiest month. For the whole year in context, see Sumy's year-round climate.

Daytime high: 13°; 6th warmest
Overnight low: 4°; 7th coldest
Precipitation: 43 mm; 9.4 wet days
Daylight: 13 h 36 min; 4:54 AM – 6:28 PM
Cloud cover: 66%; 6th clearest
Wind: 14 km/h; 7th windiest
Solar energy: 4.3 kWh/m²
Travel score: 3.8; 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.

← March Sumy year-round climate May →Best places to visit in April

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 10°C in the first days to 17°C by the end.

A typical April day in Sumy reaches about 13°C in the afternoon and slips back to 4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 7°C and 20°C. Set against its neighbours, April runs about 9°C warmer than March and about 7°C cooler than May.

	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)	9	9	10	10	10	11	11	11	12	12	12	13	13	13	13	14	14	14	14	15	15	15	16	16	16	16	17	17	17	17
Avg low (°C)	0	1	1	1	2	2	2	3	3	3	3	4	4	4	4	4	5	5	5	5	5	5	6	6	6	6	6	7	7	7

	Avg high (°C)	Avg low (°C)
1	9	0
2	9	1
3	10	1
4	10	1
5	10	2
6	11	2
7	11	2
8	11	3
9	12	3
10	12	3
11	12	3
12	13	4
13	13	4
14	13	4
15	13	4
16	14	4
17	14	5
18	14	5
19	14	5
20	15	5
21	15	5
22	15	5
23	16	6
24	16	6
25	16	6
26	16	6
27	17	6
28	17	7
29	17	7
30	17	7

How April really feels in Sumy

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 11 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

The story in April is cold — wind chill drags the overnight "feels like" below the raw low.

Sumy weather by month

How April compares with the rest of the year at a glance. April is the 6th-warmest and 7th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 17% of April, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to open up as the month goes on.

	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 (%)	33	33	33	33	33	34	34	34	34	34	34	35	35	36	36	37	37	39	41	41	42	44	44	45	47	47	48	48	50	50
Cloudier (%)	67	67	67	67	67	66	66	66	66	66	66	65	65	64	64	63	63	61	59	59	58	56	56	55	53	53	52	52	50	50

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	33	67
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	36	64
15	36	64
16	37	63
17	37	63
18	39	61
19	41	59
20	41	59
21	42	58
22	44	56
23	44	56
24	45	55
25	47	53
26	47	53
27	48	52
28	48	52
29	50	50
30	50	50

Chance of precipitation in April

Any precipitationSnow

Sumy gets around 43 mm of rain and snow over 9.4 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 32% and peaks near 34% on the wettest days, and about 1 day brings snow.

	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 (%)	29	30	30	31	31	31	32	32	32	33	33	33	34	34	34	34	34	33	33	33	32	32	31	31	31	30	30	30	30	30
Snow chance (%)	8	8	7	7	6	6	5	5	4	4	4	3	3	3	2	2	2	2	1	1	1	1	1	1	1	1	1	1	0	0

	Rain chance (%)	Snow chance (%)
1	29	8
2	30	8
3	30	7
4	31	7
5	31	6
6	31	6
7	32	5
8	32	5
9	32	4
10	33	4
11	33	4
12	33	3
13	34	3
14	34	3
15	34	2
16	34	2
17	34	2
18	33	2
19	33	1
20	33	1
21	32	1
22	32	1
23	31	1
24	31	1
25	31	1
26	30	1
27	30	1
28	30	1
29	30	0
30	30	0

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 100% 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 (%)	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	100	99	99
Comfortable (%)	0	0	0	0	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

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	99	1
30	99	1

Wind in April

Winds average 14 km/h in April.

Across April, daily wind ranges from about 13 km/h on the calmest days to 15 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)	15	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13	13	13
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	light breeze

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 36 min at the start of April to 14 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 108 minutes over April. Sunrise moves from 5:28 AM to 4:26 AM, and sunset from 6:03 PM to 6:51 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)	12.6	12.6	12.7	12.8	12.8	12.9	13.0	13.0	13.1	13.2	13.2	13.3	13.4	13.4	13.5	13.6	13.6	13.7	13.7	13.8	13.9	13.9	14.0	14.1	14.1	14.2	14.2	14.3	14.4	14.4
Sunrise (AM)	5:28	5:26	5:24	5:21	5:19	5:17	5:14	5:12	5:10	5:08	5:05	5:03	5:01	4:59	4:57	4:54	4:52	4:50	4:48	4:46	4:44	4:42	4:40	4:38	4:35	4:33	4:31	4:30	4:28	4:26
Sunset (PM)	6:03	6:04	6:06	6:08	6:09	6:11	6:13	6:14	6:16	6:18	6:19	6:21	6:23	6:24	6:26	6:28	6:29	6:31	6:33	6:34	6:36	6:38	6:39	6:41	6:42	6:44	6:46	6:47	6:49	6:51

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.6	5:28	6:03
2	12.6	5:26	6:04
3	12.7	5:24	6:06
4	12.8	5:21	6:08
5	12.8	5:19	6:09
6	12.9	5:17	6:11
7	13.0	5:14	6:13
8	13.0	5:12	6:14
9	13.1	5:10	6:16
10	13.2	5:08	6:18
11	13.2	5:05	6:19
12	13.3	5:03	6:21
13	13.4	5:01	6:23
14	13.4	4:59	6:24
15	13.5	4:57	6:26
16	13.6	4:54	6:28
17	13.6	4:52	6:29
18	13.7	4:50	6:31
19	13.7	4:48	6:33
20	13.8	4:46	6:34
21	13.9	4:44	6:36
22	13.9	4:42	6:38
23	14.0	4:40	6:39
24	14.1	4:38	6:41
25	14.1	4:35	6:42
26	14.2	4:33	6:44
27	14.2	4:31	6:46
28	14.3	4:30	6:47
29	14.4	4:28	6:49
30	14.4	4:26	6:51

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 4.3 kWh/m².

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 — April's 4.3 kWh/m² falls in the middle.

	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)	3.7	3.7	3.7	3.8	3.8	3.8	3.9	3.9	3.9	4.0	4.0	4.1	4.1	4.2	4.2	4.3	4.3	4.4	4.4	4.5	4.6	4.6	4.7	4.8	4.8	4.9	4.9	5.0	5.0	5.1
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	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	3.7	Moderate
2	3.7	Moderate
3	3.7	Moderate
4	3.8	Moderate
5	3.8	Moderate
6	3.8	Moderate
7	3.9	Moderate
8	3.9	Moderate
9	3.9	Moderate
10	4.0	Moderate
11	4.0	Bright
12	4.1	Bright
13	4.1	Bright
14	4.2	Bright
15	4.2	Bright
16	4.3	Bright
17	4.3	Bright
18	4.4	Bright
19	4.4	Bright
20	4.5	Bright
21	4.6	Bright
22	4.6	Bright
23	4.7	Bright
24	4.8	Bright
25	4.8	Bright
26	4.9	Bright
27	4.9	Bright
28	5.0	Bright
29	5.0	Bright
30	5.1	Bright

Planning a trip in April

Is April a good time to visit Sumy?

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

3.8

Sightseeing

6th-best month of the year

0.3

Beach & pool

6th-best month of the year

April is a weaker month for outdoor sightseeing in Sumy.

What to pack for Sumy in April

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

In April, Sumy sees daytime highs around 13°C and nights near 4°C. Worth packing: a warm layer and rain gear. About 9 days see rain.

a warm layerrain gear

UV index in Sumy in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 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

← March Sumy year-round climate May →Best places to visit in April

April 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	9	0
2	9	1
3	10	1
4	10	1
5	10	2
6	11	2
7	11	2
8	11	3
9	12	3
10	12	3
11	12	3
12	13	4
13	13	4
14	13	4
15	13	4
16	14	4
17	14	5
18	14	5
19	14	5
20	15	5
21	15	5
22	15	5
23	16	6
24	16	6
25	16	6
26	16	6
27	17	6
28	17	7
29	17	7
30	17	7

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	33	67
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	36	64
15	36	64
16	37	63
17	37	63
18	39	61
19	41	59
20	41	59
21	42	58
22	44	56
23	44	56
24	45	55
25	47	53
26	47	53
27	48	52
28	48	52
29	50	50
30	50	50

	Rain chance (%)	Snow chance (%)
1	29	8
2	30	8
3	30	7
4	31	7
5	31	6
6	31	6
7	32	5
8	32	5
9	32	4
10	33	4
11	33	4
12	33	3
13	34	3
14	34	3
15	34	2
16	34	2
17	34	2
18	33	2
19	33	1
20	33	1
21	32	1
22	32	1
23	31	1
24	31	1
25	31	1
26	30	1
27	30	1
28	30	1
29	30	0
30	30	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	99	1
30	99	1

	Avg high (°C)	Avg low (°C)
1	9	0
2	9	1
3	10	1
4	10	1
5	10	2
6	11	2
7	11	2
8	11	3
9	12	3
10	12	3
11	12	3
12	13	4
13	13	4
14	13	4
15	13	4
16	14	4
17	14	5
18	14	5
19	14	5
20	15	5
21	15	5
22	15	5
23	16	6
24	16	6
25	16	6
26	16	6
27	17	6
28	17	7
29	17	7
30	17	7

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	33	67
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	36	64
15	36	64
16	37	63
17	37	63
18	39	61
19	41	59
20	41	59
21	42	58
22	44	56
23	44	56
24	45	55
25	47	53
26	47	53
27	48	52
28	48	52
29	50	50
30	50	50

	Rain chance (%)	Snow chance (%)
1	29	8
2	30	8
3	30	7
4	31	7
5	31	6
6	31	6
7	32	5
8	32	5
9	32	4
10	33	4
11	33	4
12	33	3
13	34	3
14	34	3
15	34	2
16	34	2
17	34	2
18	33	2
19	33	1
20	33	1
21	32	1
22	32	1
23	31	1
24	31	1
25	31	1
26	30	1
27	30	1
28	30	1
29	30	0
30	30	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	99	1
30	99	1

	Avg high (°C)	Avg low (°C)
1	9	0
2	9	1
3	10	1
4	10	1
5	10	2
6	11	2
7	11	2
8	11	3
9	12	3
10	12	3
11	12	3
12	13	4
13	13	4
14	13	4
15	13	4
16	14	4
17	14	5
18	14	5
19	14	5
20	15	5
21	15	5
22	15	5
23	16	6
24	16	6
25	16	6
26	16	6
27	17	6
28	17	7
29	17	7
30	17	7

	Clearer (%)	Cloudier (%)
1	33	67
2	33	67
3	33	67
4	33	67
5	33	67
6	34	66
7	34	66
8	34	66
9	34	66
10	34	66
11	34	66
12	35	65
13	35	65
14	36	64
15	36	64
16	37	63
17	37	63
18	39	61
19	41	59
20	41	59
21	42	58
22	44	56
23	44	56
24	45	55
25	47	53
26	47	53
27	48	52
28	48	52
29	50	50
30	50	50

	Rain chance (%)	Snow chance (%)
1	29	8
2	30	8
3	30	7
4	31	7
5	31	6
6	31	6
7	32	5
8	32	5
9	32	4
10	33	4
11	33	4
12	33	3
13	34	3
14	34	3
15	34	2
16	34	2
17	34	2
18	33	2
19	33	1
20	33	1
21	32	1
22	32	1
23	31	1
24	31	1
25	31	1
26	30	1
27	30	1
28	30	1
29	30	0
30	30	0

	Dry (%)	Comfortable (%)
1	100	0
2	100	0
3	100	0
4	100	0
5	100	0
6	100	0
7	100	0
8	100	0
9	100	0
10	100	0
11	100	0
12	100	0
13	100	0
14	100	0
15	100	0
16	100	0
17	100	0
18	100	0
19	100	0
20	100	0
21	100	0
22	100	0
23	100	0
24	100	0
25	100	0
26	100	0
27	100	0
28	100	0
29	99	1
30	99	1