Midori weather in May

In May, Midori sees average daytime highs of 20°C and overnight lows near 11°C, with 136 mm of rain across 14.3 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 19°C in the first days to 22°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 Midori's 8th-clearest and 6th-windiest month. For the whole year in context, see Midori's year-round climate.

Daytime high
20°
5th warmest
Overnight low
11°
8th coldest
Rainfall
136 mm
14.3 wet days
Daylight
13 h 54 min
4:41 AM – 6:37 PM
Cloud cover
67%
8th clearest
Wind
6 km/h
6th windiest
Solar energy
5.29 kWh/m²
Travel score
5.6
out of 10

Midori is city in Gunma Prefecture, Japan.

Density
241/km²
people per km²
Founded
2006

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 19°C in the first days to 22°C by the end.

A typical May day in Midori reaches about 20°C in the afternoon and slips back to 11°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 25°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1189
2189
3199
41910
51910
61910
71910
81910
91910
101911
112011
122011
132011
142011
152011
162011
172012
182012
192112
202112
212112
222112
232113
242113
252113
262113
272113
282113
292213
302214
312214

How May really feels in Midori

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.

Midori 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 / -2°517.25.59.80.1
Feb / -2°518.35.910.60.4
Mar10° / 9912.45.411.72.0
Apr15° / 11412.71.312.94.4
May20° / 11°13614.3013.95.6
Jun23° / 16°17318.4014.45.1
Jul27° / 20°21721.3014.24.7
Aug28° / 21°17420.2013.44.7
Sep24° / 17°20417.2012.25.4
Oct18° / 11°16813.4011.15.4
Nov13° / 667.80.310.13.9
Dec / 4573.39.61.3

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 14% 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
24456
34456
44357
54357
64258
74258
84159
94159
104060
114060
124060
134060
143961
153862
163862
173862
183862
193862
203862
213862
223664
233664
243565
253565
263565
273466
283466
293466
303268
313268

Chance of precipitation in May

Any precipitation

Midori gets around 136 mm of rain over 14.3 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 45% and peaks near 49% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
142
242
342
442
543
643
743
844
944
1044
1145
1245
1346
1446
1546
1646
1746
1846
1946
2047
2147
2247
2347
2447
2547
2647
2747
2847
2948
3048
3149

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 83% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19451
29451
39361
49361
59271
69271
79271
89181
99181
109091
119091
129091
1389101
1489101
1588111
1686122
1785132
1885132
1984142
2082162
2180173
2279183
2378193
2477203
2574224
2673234
2771254
2869265
2967285
3064306
3161327

Wind in May

Winds average 6 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
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
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 4:56 AM to 4:32 AM, and sunset from 6:24 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:566:24
213.54:556:25
313.54:546:26
413.64:536:27
513.64:526:28
613.64:506:29
713.74:496:29
813.74:486:30
913.74:476:31
1013.84:466:32
1113.84:466:33
1213.84:456:34
1313.84:446:35
1413.94:436:35
1513.94:426:36
1613.94:416:37
1714.04:406:38
1814.04:406:39
1914.04:396:40
2014.04:386:40
2114.14:376:41
2214.14:376:42
2314.14:366:43
2414.14:356:44
2514.24:356:44
2614.24:346:45
2714.24:346:46
2814.24:336:47
2914.24:336:47
3014.34:326:48
3114.34:326:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.29 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.29 kWh/m² in May across the year — May's 5.29 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Midori

In seasonPeak

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

Midori'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 Midori?

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

5.6
Sightseeing
1st-best month of the year
3.0
Beach & pool
5th-best month of the year

May is a reasonable time to visit Midori for sightseeing.

What to pack for Midori in May

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

In May, Midori sees daytime highs around 20°C and nights near 11°C. Pack rain gear. Worth having: sun protection. About 14 days see rain.

rain gearsun protection

UV index in Midori 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 Midori peaks around July 16 at about 9 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateJul 16UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Midori 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 Midori is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 179 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun16Moderate
Jul14Moderate
Aug13Moderate
Sep11Good
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Midori?

Midori sits at 36.4°N, 139.3°E, 254 m above sea level, in Japan. The nearest listed city is Ōmamachō-ōmama, 2.0 km away.

Topography around Midori

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

Within 3 km, the terrain around Midori has significant variations in elevation — a maximum elevation change of 351 m around an average of 243 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,777 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,552 m.

The land around Midori is covered by trees (62%) and artificial surfaces (28%) within 3 km, trees (61%) and artificial surfaces (21%) within 16 km, and trees (67%) within 80 km.

3 km
351 m
16 km
1,777 m
80 km
2,552 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ōmamachō-ōmama 2.0 km · Kiryū 7.0 km · Isesaki 16 km · Ōta 18 km · Maebashi 19 km · Ashikaga 19 km · Sakai-nakajima 20 km · Tamamura 22 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 Midori (36.4449°, 139.2845°, elevation 254 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).