Ueda weather in April

In April, Ueda sees average daytime highs of 14°C and overnight lows near 3°C, with 107 mm of precipitation across 13.5 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 11°C in the first days to 17°C by the end. The sky is clear or mostly clear about 30% 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 Ueda's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Ueda's year-round climate.

Daytime high
14°
7th warmest
Overnight low
6th coldest
Precipitation
107 mm
13.5 wet days
Daylight
12 h 54 min
5:19 AM – 6:15 PM
Cloud cover
59%
3rd clearest
Wind
6 km/h
2nd windiest
Solar energy
5.4 kWh/m²
Travel score
3.9
out of 10

Ueda is city in Nagano Prefecture, Japan.

Density
285/km²
people per km²
Founded
2006

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 11°C in the first days to 17°C by the end.

A typical April day in Ueda reaches about 14°C in the afternoon and slips back to 3°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 8°C and 20°C. Set against its neighbours, April runs about 7°C warmer than March and about 6°C cooler than May.

10°20°151015202530
Avg high (°C)Avg low (°C)
1111
2111
3111
4121
5121
6121
7122
8132
9132
10132
11132
12143
13143
14143
15143
16144
17154
18154
19154
20154
21165
22165
23165
24165
25175
26176
27176
28176
29176
30186

How April really feels in Ueda

Once humidity and wind are folded in, April averages 0 days that feel above 32°C and 8 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
8
wind chill below the day's low

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

Ueda 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°9016.518.29.80.0
Feb / -5°8413.613.810.60.0
Mar / -2°11815.311.611.71.1
Apr14° / 10713.5312.93.9
May20° / 12313.90.113.95.7
Jun23° / 14°16817.2014.45.4
Jul27° / 18°20920.3014.24.9
Aug28° / 19°13416.2013.45.1
Sep24° / 15°16115.3012.25.7
Oct18° / 15014.20.111.15.1
Nov12° / 8712.93.810.12.8
Dec / -3°8816.114.59.60.4

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 53%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14753
24753
34753
44852
54852
64951
74951
84951
94951
104951
114951
124852
134852
144753
154753
164753
174654
184555
194654
204555
214555
224555
234555
244555
254654
264654
274654
284654
294654
304654

Chance of precipitation in April

Any precipitationSnow

Ueda gets around 107 mm of rain and snow over 13.5 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 45% and peaks near 48% on the wettest days, and about 3 days bring snow. The odds ease toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)Snow chance (%)
14825
24824
34823
44822
54820
64719
74718
84717
94616
104615
114613
124512
134511
144511
154510
16459
17458
18457
19446
20445
21445
22444
23434
24433
25433
26422
27422
28412
29411
30401

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.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
24991
25991
26991
27991
28991
29991
30991

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 5:41 AM to 5:01 AM, and sunset from 6:02 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.35:416:02
212.45:406:03
312.45:386:04
412.55:376:05
512.55:356:05
612.55:346:06
712.65:326:07
812.65:316:08
912.75:296:09
1012.75:286:10
1112.75:266:11
1212.85:256:11
1312.85:246:12
1412.95:226:13
1512.95:216:14
1612.95:196:15
1713.05:186:16
1813.05:176:17
1913.05:156:18
2013.15:146:18
2113.15:136:19
2213.15:116:20
2313.25:106:21
2413.25:096:22
2513.35:076:23
2613.35:066:24
2713.35:056:25
2813.45:046:25
2913.45:026:26
3013.45:016:27

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.4 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.72 kWh/m² in May across the year — April's 5.4 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in April

Is April a good time to visit Ueda?

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

3.9
Sightseeing
7th-best month of the year
0.4
Beach & pool
7th-best month of the year

April is a weaker month for outdoor sightseeing in Ueda.

What to pack for Ueda in April

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

In April, Ueda sees daytime highs around 14°C and nights near 3°C. Worth packing: a warm layer, rain gear and sun protection. About 14 days see rain.

a warm layerrain gearsun protection

UV index in Ueda 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 Ueda peaks around July 18 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 18UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May9Very high
Jun10Very high
Jul10Very high
Aug10Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Ueda 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 Ueda is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug13Moderate
Sep12Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Ueda?

Ueda sits at 36.4°N, 138.3°E, 536 m above sea level, in Japan. The nearest listed city is Tōmi, 9.0 km away.

Topography around Ueda

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

Within 3 km, the terrain around Ueda has significant variations in elevation — a maximum elevation change of 594 m around an average of 559 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,841 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,130 m.

The land around Ueda is covered by artificial surfaces (46%) and trees (27%) within 3 km, trees (71%) within 16 km, and trees (84%) within 80 km.

3 km
594 m
16 km
1,841 m
80 km
3,130 m
treesgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Tōmi 9.0 km · Kamimaruko 9.0 km · Sakaki 11 km · Komoro 17 km · Miyota 22 km · Chikuma 22 km · Saku 27 km · Suzaka 28 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
Shintoism 49%Buddhism 46%other 4%Christianity 1%

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 Ueda (36.4027°, 138.2816°, elevation 536 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).