Kiyosu weather in May

In May, Kiyosu sees average daytime highs of 24°C and overnight lows near 14°C, with 176 mm of rain across 11.9 wet days and about 13.8 hours of daylight. It is the 5th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 24 min at the start of May to 14 h 12 min by month's end. Set against the rest of the year, May is Kiyosu's 10th-clearest and 5th-windiest month. For the whole year in context, see Kiyosu's year-round climate.

Daytime high
24°
5th warmest
Overnight low
14°
8th coldest
Rainfall
176 mm
11.9 wet days
Daylight
13 h 48 min
4:54 AM – 6:44 PM
Cloud cover
64%
10th clearest
Wind
8 km/h
5th windiest
Solar energy
5.44 kWh/m²
Travel score
6.5
out of 10

Kiyosu is city in Aichi prefecture, Japan.

Density
5,060/km²
people per km²
Founded
2005

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 22°C in the first days to 25°C by the end.

A typical May day in Kiyosu reaches about 24°C in the afternoon and slips back to 14°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 19°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)
12212
22212
32212
42212
52212
62213
72213
82313
92313
102313
112313
122313
132314
142314
152314
162414
172414
182414
192414
202415
212415
222415
232415
242515
252515
262516
272516
282516
292516
302516
312516

How May really feels in Kiyosu

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.

Kiyosu 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 / 6370.99.92.0
Feb10° / 697.11.110.72.4
Mar14° / 12710.70.111.74.0
Apr19° / 14711.2012.95.9
May24° / 14°17611.9013.86.5
Jun27° / 19°22215.1014.35.4
Jul30° / 23°27618.4014.13.8
Aug32° / 24°18115.5013.33.6
Sep28° / 20°24814012.25.3
Oct23° / 14°19211.3011.16.7
Nov17° / 997.6010.15.7
Dec11° / 656.80.39.73.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34654
44654
54555
64456
74555
84357
94357
104258
114258
124258
134159
144159
154159
164159
174159
184159
194159
204159
214159
224060
233961
243961
253862
263763
273763
283763
293763
303565
313565

Chance of precipitation in May

Any precipitation

Kiyosu gets around 176 mm of rain over 11.9 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 38% and peaks near 40% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
135
236
336
436
536
637
738
838
939
1039
1140
1240
1340
1440
1540
1640
1740
1839
1939
2039
2138
2238
2337
2437
2537
2636
2736
2836
2936
3036
3136

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 50% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1722161
2712261
3692371
4682471
5672481
6652591
7642691
86127102
96127102
105928112
115829112
125829112
135630122
145531122
155332132
165233132
175034142
184834152
194635163
204535173
214336183
224136193
234037213
243837223
253637234
263437254
273237264
283037284
292837305
302637325
312436346

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 12 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 5:08 AM to 4:45 AM, and sunset from 6:32 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:086:32
213.45:076:33
313.55:066:34
413.55:056:34
513.55:046:35
613.65:026:36
713.65:026:37
813.65:016:38
913.75:006:39
1013.74:596:39
1113.74:586:40
1213.74:576:41
1313.84:566:42
1413.84:556:43
1513.84:546:43
1613.84:546:44
1713.94:536:45
1813.94:526:46
1913.94:516:47
2013.94:516:47
2114.04:506:48
2214.04:496:49
2314.04:496:50
2414.04:486:50
2514.14:486:51
2614.14:476:52
2714.14:476:53
2814.14:466:53
2914.14:466:54
3014.24:456:55
3114.24:456:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.44 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.44 kWh/m² to a high of 5.44 kWh/m² in May across the year — May's 5.44 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
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Kiyosu

In seasonPeak

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

Kiyosu sits in the Pacific typhoon belt; the season peaks July–October.

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

Is May a good time to visit Kiyosu?

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

6.5
Sightseeing
2nd-best month of the year
5.2
Beach & pool
5th-best month of the year

May is a reasonable time to visit Kiyosu for sightseeing.

What to pack for Kiyosu in May

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

In May, Kiyosu sees daytime highs around 24°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

Sea temperature near Kiyosu in May

The nearest coast averages about 18°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 38 km away) is warmest in August at about 27°C and coldest in February near 13°C.

It's comfortable for a long swim from May 31 to Nov 9 — about 5.4 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Kiyosu 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 Kiyosu peaks around July 13 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 13UV 10Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Kiyosu 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 Kiyosu is worst in April — around 26 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1125 µg/m³Aug 1817 µg/m³
PM2.5 (µg/m³)Level
Jan18Moderate
Feb20Moderate
Mar25Moderate
Apr26Moderate
May25Moderate
Jun21Moderate
Jul17Moderate
Aug17Moderate
Sep17Moderate
Oct18Moderate
Nov18Moderate
Dec16Moderate
Location & terrain

Where is Kiyosu?

Kiyosu sits at 35.2°N, 136.8°E, 3 m above sea level, in Japan. The nearest listed city is Ama, 5.0 km away.

Topography around Kiyosu

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

Within 3 km, the terrain around Kiyosu has only modest variations in elevation — a maximum elevation change of 22 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 136 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,181 m.

The land around Kiyosu is covered by artificial surfaces (76%) within 3 km, artificial surfaces (68%) and cropland (20%) within 16 km, and trees (60%) within 80 km.

3 km
22 m
16 km
136 m
80 km
2,181 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ama 5.0 km · Ōharu 5.0 km · Kitanagoya 5.0 km · Inazawa 6.0 km · Nagoya 8.0 km · Iwakura 8.0 km · Toyoyama 8.0 km · Haruta 9.0 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 Kiyosu (35.2167°, 136.8333°, elevation 3 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).