Numata weather in April

In April, Numata sees average daytime highs of 12°C and overnight lows near 3°C, with 116 mm of precipitation across 14.9 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 9°C in the first days to 15°C by the end. The sky is clear or mostly clear about 25% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 24 min by month's end. Set against the rest of the year, April is Numata's 3rd-clearest and 5th-windiest month. For the whole year in context, see Numata's year-round climate.

Daytime high: 12°; 7th warmest
Overnight low: 3°; 6th coldest
Precipitation: 116 mm; 14.9 wet days
Daylight: 12 h 54 min; 5:16 AM – 6:12 PM
Cloud cover: 64%; 3rd clearest
Wind: 7 km/h; 5th windiest
Solar energy: 5.24 kWh/m²
Travel score: 2.7; out of 10

Numata is city in Gunma prefecture, Japan.

Density: 106/km²; people per km²
Founded: 1954

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

← March Numata 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 9°C in the first days to 15°C by the end.

A typical April day in Numata reaches about 12°C in the afternoon and slips back to 3°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 6°C and 17°C. Set against its neighbours, April runs about 6°C warmer than March and about 6°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)	8	9	9	9	9	10	10	10	10	11	11	11	11	11	12	12	12	12	13	13	13	13	13	14	14	14	14	15	15	15
Avg low (°C)	0	0	0	0	1	1	1	1	1	2	2	2	2	2	3	3	3	3	3	4	4	4	4	4	5	5	5	5	5	6

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

How April really feels in Numata

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 12 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.

Numata weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Snow days	Daylight (hours)	Travel score
Jan	1° / -6°	110	20.6	21.8	9.8	0.0
Feb	2° / -6°	94	17.4	18.4	10.6	0.0
Mar	5° / -3°	123	17.9	14.8	11.7	0.3
Apr	12° / 3°	116	14.9	4.2	12.9	2.7
May	17° / 8°	129	14.9	0.3	13.9	4.9
Jun	21° / 13°	155	17.1	0	14.5	5.0
Jul	24° / 18°	205	20.4	0	14.2	5.0
Aug	25° / 18°	145	17.1	0	13.4	5.6
Sep	21° / 15°	176	15.8	0	12.2	5.4
Oct	16° / 8°	153	13.7	0.3	11.1	4.4
Nov	10° / 2°	85	13.4	4.8	10	2.0
Dec	4° / -3°	96	18.2	16.6	9.5	0.1

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 16% of April, with mostly cloudy or overcast conditions the remaining 60%.

	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 (%)	38	39	39	40	40	40	41	42	42	42	42	41	41	41	41	40	40	40	40	40	40	40	40	40	39	40	40	41	40	40
Cloudier (%)	62	61	61	60	60	60	59	58	58	58	58	59	59	59	59	60	60	60	60	60	60	60	60	60	61	60	60	59	60	60

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	40	60
5	40	60
6	40	60
7	41	59
8	42	58
9	42	58
10	42	58
11	42	58
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	40	60
25	39	61
26	40	60
27	40	60
28	41	59
29	40	60
30	40	60

Chance of precipitation in April

Any precipitationSnow

Numata gets around 116 mm of rain and snow over 14.9 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 50% and peaks near 54% on the wettest days, and about 4 days bring snow. The odds ease toward the end of the month.

	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 (%)	54	54	53	53	53	53	52	52	51	51	51	50	50	50	50	50	49	49	49	49	48	48	48	48	47	47	47	47	47	47
Snow chance (%)	30	29	28	26	25	24	22	21	19	18	17	16	15	14	13	12	11	11	10	9	9	8	8	7	7	6	6	5	5	4

	Rain chance (%)	Snow chance (%)
1	54	30
2	54	29
3	53	28
4	53	26
5	53	25
6	53	24
7	52	22
8	52	21
9	51	19
10	51	18
11	51	17
12	50	16
13	50	15
14	50	14
15	50	13
16	50	12
17	49	11
18	49	11
19	49	10
20	49	9
21	48	9
22	48	8
23	48	8
24	48	7
25	47	7
26	47	6
27	47	6
28	47	5
29	47	5
30	47	4

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	99	99	99	99	99	99	99	99	99	99	99	99
Comfortable (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	1	1	1	1	1	1	1	1	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	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1

Wind in April

Winds average 7 km/h in April.

Across April, daily wind ranges from about 7 km/h on the calmest days to 8 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)	8	8	8	8	8	8	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7	7
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

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

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over April. Sunrise moves from 5:38 AM to 4:58 AM, and sunset from 5:59 PM to 6:24 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)	12.3	12.4	12.4	12.5	12.5	12.5	12.6	12.6	12.7	12.7	12.7	12.8	12.8	12.9	12.9	12.9	13.0	13.0	13.0	13.1	13.1	13.2	13.2	13.2	13.3	13.3	13.3	13.4	13.4	13.4
Sunrise (AM)	5:38	5:36	5:35	5:33	5:32	5:30	5:29	5:28	5:26	5:25	5:23	5:22	5:20	5:19	5:17	5:16	5:15	5:13	5:12	5:10	5:09	5:08	5:07	5:05	5:04	5:03	5:01	5:00	4:59	4:58
Sunset (PM)	5:59	6:00	6:01	6:02	6:02	6:03	6:04	6:05	6:06	6:07	6:08	6:09	6:09	6:10	6:11	6:12	6:13	6:14	6:15	6:16	6:16	6:17	6:18	6:19	6:20	6:21	6:22	6:23	6:24	6:24

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.3	5:38	5:59
2	12.4	5:36	6:00
3	12.4	5:35	6:01
4	12.5	5:33	6:02
5	12.5	5:32	6:02
6	12.5	5:30	6:03
7	12.6	5:29	6:04
8	12.6	5:28	6:05
9	12.7	5:26	6:06
10	12.7	5:25	6:07
11	12.7	5:23	6:08
12	12.8	5:22	6:09
13	12.8	5:20	6:09
14	12.9	5:19	6:10
15	12.9	5:17	6:11
16	12.9	5:16	6:12
17	13.0	5:15	6:13
18	13.0	5:13	6:14
19	13.0	5:12	6:15
20	13.1	5:10	6:16
21	13.1	5:09	6:16
22	13.2	5:08	6:17
23	13.2	5:07	6:18
24	13.2	5:05	6:19
25	13.3	5:04	6:20
26	13.3	5:03	6:21
27	13.3	5:01	6:22
28	13.4	5:00	6:23
29	13.4	4:59	6:24
30	13.4	4:58	6:24

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.24 kWh/m².

For context, solar energy here swings from a low near 2.2 kWh/m² to a high of 5.51 kWh/m² in May across the year — April's 5.24 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)	5.0	5.0	5.0	5.0	5.0	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.4	5.4	5.4	5.4	5.4	5.5
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	5.0	Bright
2	5.0	Bright
3	5.0	Bright
4	5.0	Bright
5	5.0	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.2	Bright
11	5.2	Bright
12	5.2	Bright
13	5.2	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.3	Bright
24	5.3	Bright
25	5.4	Bright
26	5.4	Bright
27	5.4	Bright
28	5.4	Bright
29	5.4	Bright
30	5.5	Bright

Planning a trip in April

Is April a good time to visit Numata?

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

2.7

Sightseeing

7th-best month of the year

0.0

Beach & pool

7th-best month of the year

April is a weaker month for outdoor sightseeing in Numata.

What to pack for Numata in April

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

In April, Numata sees daytime highs around 12°C and nights near 3°C. Pack a warm layer and rain gear. Worth having: sun protection. About 15 days see rain.

a warm layerrain gearsun protection

UV index in Numata in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 Numata peaks around July 24 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	2	4	5	7	9	9	10	10	9	6	3	2
Level	Moderate	Moderate	High	Very high	Very high	Very high	Very high	Very high	Very high	High	Moderate	Moderate

	UV index (midday)	Level
Jan	2	Moderate
Feb	4	Moderate
Mar	5	High
Apr	7	Very high
May	9	Very high
Jun	9	Very high
Jul	10	Very high
Aug	10	Very high
Sep	9	Very high
Oct	6	High
Nov	3	Moderate
Dec	2	Moderate

Air quality in Numata in April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April falls, not just the annual average.

Air quality in Numata is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 10 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	11	14	19	21	20	18	15	13	12	12	11	10
Level	Good	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Good	Good	Good	Good

	PM2.5 (µg/m³)	Level
Jan	11	Good
Feb	14	Moderate
Mar	19	Moderate
Apr	21	Moderate
May	20	Moderate
Jun	18	Moderate
Jul	15	Moderate
Aug	13	Moderate
Sep	12	Good
Oct	12	Good
Nov	11	Good
Dec	10	Good

Location & terrain

Where is Numata?

Numata sits at 36.6°N, 139.1°E, 376 m above sea level, in Japan. The nearest listed city is Minakami, 8.0 km away.

Topography around Numata

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

Within 3 km, the terrain around Numata has significant variations in elevation — a maximum elevation change of 266 m around an average of 400 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,659 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,544 m.

The land around Numata is covered by artificial surfaces (35%), trees (32%) and cropland (28%) within 3 km, trees (78%) within 16 km, and trees (77%) within 80 km.

3 km

266 m

artificial surfaces 35%

16 km

1,659 m

trees 78%

80 km

2,544 m

trees 77%

treesgrasslandcroplandartificial surfaceswater

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

April weather nearby: Minakami 8.0 km · Shibukawa 17 km · Nakanojō 19 km · Ogura 20 km · Kanekomachi 25 km · Maebashi 26 km · Midori 30 km · Ōmamachō-ōmama 30 km

Japan travel facts

Travel advisory: Level 1; Exercise Normal Precautions
Power plugs: Type A / B; 100 V · 50 / 60 Hz
Prices: ≈ 65% of US; price level, 2025
GDP per capita: $35,951; 2025
Happiness: 6.1 / 10; World Happiness, 2025
Safe drinking water: 99%; of population, 2024
Homicide rate: 0.2; per 100k, 2023
Road deaths: 3.6; per 100k/yr, 2019
Income group: High; World Bank
English: Very low; EF EPI 446
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 Numata (36.6333°, 139.05°, elevation 376 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. 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	8	0
2	9	0
3	9	0
4	9	0
5	9	1
6	10	1
7	10	1
8	10	1
9	10	1
10	11	2
11	11	2
12	11	2
13	11	2
14	11	2
15	12	3
16	12	3
17	12	3
18	12	3
19	13	3
20	13	4
21	13	4
22	13	4
23	13	4
24	14	4
25	14	5
26	14	5
27	14	5
28	15	5
29	15	5
30	15	6

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	40	60
5	40	60
6	40	60
7	41	59
8	42	58
9	42	58
10	42	58
11	42	58
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	40	60
25	39	61
26	40	60
27	40	60
28	41	59
29	40	60
30	40	60

	Rain chance (%)	Snow chance (%)
1	54	30
2	54	29
3	53	28
4	53	26
5	53	25
6	53	24
7	52	22
8	52	21
9	51	19
10	51	18
11	51	17
12	50	16
13	50	15
14	50	14
15	50	13
16	50	12
17	49	11
18	49	11
19	49	10
20	49	9
21	48	9
22	48	8
23	48	8
24	48	7
25	47	7
26	47	6
27	47	6
28	47	5
29	47	5
30	47	4

	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	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1

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

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	40	60
5	40	60
6	40	60
7	41	59
8	42	58
9	42	58
10	42	58
11	42	58
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	40	60
25	39	61
26	40	60
27	40	60
28	41	59
29	40	60
30	40	60

	Rain chance (%)	Snow chance (%)
1	54	30
2	54	29
3	53	28
4	53	26
5	53	25
6	53	24
7	52	22
8	52	21
9	51	19
10	51	18
11	51	17
12	50	16
13	50	15
14	50	14
15	50	13
16	50	12
17	49	11
18	49	11
19	49	10
20	49	9
21	48	9
22	48	8
23	48	8
24	48	7
25	47	7
26	47	6
27	47	6
28	47	5
29	47	5
30	47	4

	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	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1

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

	Clearer (%)	Cloudier (%)
1	38	62
2	39	61
3	39	61
4	40	60
5	40	60
6	40	60
7	41	59
8	42	58
9	42	58
10	42	58
11	42	58
12	41	59
13	41	59
14	41	59
15	41	59
16	40	60
17	40	60
18	40	60
19	40	60
20	40	60
21	40	60
22	40	60
23	40	60
24	40	60
25	39	61
26	40	60
27	40	60
28	41	59
29	40	60
30	40	60

	Rain chance (%)	Snow chance (%)
1	54	30
2	54	29
3	53	28
4	53	26
5	53	25
6	53	24
7	52	22
8	52	21
9	51	19
10	51	18
11	51	17
12	50	16
13	50	15
14	50	14
15	50	13
16	50	12
17	49	11
18	49	11
19	49	10
20	49	9
21	48	9
22	48	8
23	48	8
24	48	7
25	47	7
26	47	6
27	47	6
28	47	5
29	47	5
30	47	4

	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	99	1
20	99	1
21	99	1
22	99	1
23	99	1
24	99	1
25	99	1
26	99	1
27	99	1
28	99	1
29	99	1
30	99	1