Tatebayashi weather in May

In May, Tatebayashi sees average daytime highs of 23°C and overnight lows near 14°C, with 153 mm of rain across 13.7 wet days and about 13.9 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 25% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Tatebayashi's 8th-clearest and 6th-windiest month. For the whole year in context, see Tatebayashi's year-round climate.

Daytime high
23°
5th warmest
Overnight low
14°
8th coldest
Rainfall
153 mm
13.7 wet days
Daylight
13 h 54 min
4:41 AM – 6:36 PM
Cloud cover
68%
8th clearest
Wind
7 km/h
6th windiest
Solar energy
5.08 kWh/m²
Travel score
6.1
out of 10

Tatebayashi is city in Gunma Prefecture, Japan.

Density
1,333/km²
people per km²
Founded
1954

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical May day in Tatebayashi reaches about 23°C in the afternoon and slips back to 14°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 27°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12111
22112
32112
42112
52112
62112
72212
82213
92213
102213
112213
122213
132213
142213
152214
162314
172314
182314
192314
202314
212315
222315
232315
242415
252415
262415
272415
282416
292416
302416
312416

How May really feels in Tatebayashi

Once humidity and wind are folded in, May 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

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

Tatebayashi weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -0°556.129.81.6
Feb / 536.92.310.62.0
Mar13° / 10411.81.511.73.5
Apr18° / 12112.20.212.95.4
May23° / 14°15313.7013.96.1
Jun25° / 18°18716.7014.45.3
Jul29° / 22°22018.8014.24.3
Aug30° / 23°17116.4013.44.1
Sep26° / 20°22116.7012.25.3
Oct21° / 14°20613.7011.15.9
Nov15° / 838.6010.15.0
Dec10° / 516.70.49.62.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34456
44357
54258
64258
74060
83961
93862
103763
113763
123664
133664
143664
153664
163763
173763
183763
193664
203664
213664
223664
233664
243664
253664
263664
273664
283466
293466
303367
313268

Chance of precipitation in May

Any precipitation

Tatebayashi gets around 153 mm of rain over 13.7 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 43% and peaks near 45% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
140
240
340
440
541
641
741
842
942
1043
1143
1243
1344
1444
1544
1645
1745
1845
1945
2045
2145
2245
2345
2445
2544
2644
2744
2844
2944
3044
3144

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791731
2771841
3761941
4742051
5732151
6712261
7702361
8682471
9672571
10652681
11642781
12622891
13612991
146029101
155830111
165731111
175532121
185333131
195233141
205034152
214835162
224635172
234436182
244237192
254038203
263838213
273639223
283440234
293140244
302940265
312741275

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over May. Sunrise moves from 4:55 AM to 4:31 AM, and sunset from 6:23 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:556:23
213.54:546:24
313.54:536:25
413.64:526:25
513.64:516:26
613.64:506:27
713.74:496:28
813.74:486:29
913.74:476:30
1013.74:466:31
1113.84:456:31
1213.84:446:32
1313.84:436:33
1413.94:426:34
1513.94:416:35
1613.94:416:36
1713.94:406:36
1814.04:396:37
1914.04:386:38
2014.04:386:39
2114.04:376:40
2214.14:366:41
2314.14:366:41
2414.14:356:42
2514.14:346:43
2614.24:346:44
2714.24:336:44
2814.24:336:45
2914.24:326:46
3014.24:326:46
3114.34:316:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.08 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.4 kWh/m² to a high of 5.08 kWh/m² in May across the year — May's 5.08 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.1Bright
125.1Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Tatebayashi

In seasonPeak

In May, Tatebayashi sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Tatebayashi's rainy season runs March–October, when most of the year's rain falls.

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

Is May a good time to visit Tatebayashi?

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

6.1
Sightseeing
1st-best month of the year
4.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Tatebayashi for sightseeing.

What to pack for Tatebayashi in May

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

In May, Tatebayashi sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 14 days see rain.

light clothesrain gearsun protection

UV index in Tatebayashi in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tatebayashi peaks around July 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 16UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Tatebayashi in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tatebayashi is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1426 µg/m³Dec 1814 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May24Moderate
Jun20Moderate
Jul17Moderate
Aug16Moderate
Sep16Moderate
Oct16Moderate
Nov16Moderate
Dec14Moderate
Location & terrain

Where is Tatebayashi?

Tatebayashi sits at 36.3°N, 139.5°E, 28 m above sea level, in Japan. The nearest listed city is Ōwa, 7.0 km away.

Topography around Tatebayashi

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

Within 3 km, the terrain around Tatebayashi has only modest variations in elevation — a maximum elevation change of 23 m around an average of 22 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 394 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,552 m.

The land around Tatebayashi is covered by artificial surfaces (57%) and cropland (29%) within 3 km, cropland (39%) and artificial surfaces (37%) within 16 km, and trees (54%) and artificial surfaces (24%) within 80 km.

3 km
23 m
16 km
394 m
80 km
2,552 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Ōwa 7.0 km · Sano 9.0 km · Hanyū 9.0 km · Kamikoizumi 9.0 km · Fujioka 10 km · Ashikaga 12 km · Tanuma 14 km · Gyōda 14 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 Tatebayashi (36.25°, 139.5333°, elevation 28 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).