Kasumi weather in May

In May, Kasumi sees average daytime highs of 19°C and overnight lows near 15°C, with 143 mm of rain across 11.5 wet days and about 13.9 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 20°C by the end. The sky is clear or mostly clear about 30% 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 Kasumi's 4th-clearest and 9th-windiest month. For the whole year in context, see Kasumi's year-round climate.

Daytime high
19°
6th warmest
Overnight low
15°
7th coldest
Rainfall
143 mm
11.5 wet days
Daylight
13 h 54 min
5:01 AM – 6:54 PM
Cloud cover
61%
4th clearest
Wind
15 km/h
9th windiest
Solar energy
5.59 kWh/m²
Travel score
5.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 17°C in the first days to 20°C by the end.

A typical May day in Kasumi reaches about 19°C in the afternoon and slips back to 15°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 22°C. Set against its neighbours, May runs about 4°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11713
21713
31713
41713
51813
61813
71814
81814
91814
101814
111814
121814
131814
141914
151915
161915
171915
181915
191915
201915
211915
221916
232016
242016
252016
262016
272016
282016
292017
302017
312017

How May really feels in Kasumi

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.

Kasumi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 20023.97.19.90.8
Feb / 13517.85.610.70.9
Mar10° / 14215.71.811.72.1
Apr15° / 10°11611.5012.94.2
May19° / 15°14311.5013.95.9
Jun22° / 19°15612.6014.45.9
Jul26° / 23°18614.8014.25.8
Aug28° / 25°13212.5013.35.7
Sep25° / 22°20714.3012.26.0
Oct20° / 17°13912.3011.16.0
Nov15° / 12°13516010.14.0
Dec10° / 20722.43.19.61.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% 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 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44852
54753
64654
74555
84555
94456
104456
114357
124456
134258
144258
154357
164357
174357
184258
194258
204258
214258
224258
234159
244159
254159
264159
274159
284060
293961
303862
313763

Chance of precipitation in May

Any precipitation

Kasumi gets around 143 mm of rain over 11.5 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 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
136
236
336
436
537
637
737
837
938
1038
1138
1238
1338
1438
1537
1637
1737
1836
1936
2036
2136
2235
2335
2435
2535
2634
2734
2834
2933
3033
3133

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 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1772120
2742330
3732430
4712630
5692830
6672940
7663040
8643240
9623350
10613450
11593560
12573760
13553870
14534070
15514180
16484390
174644100
184345111
194146121
203947131
213648151
223449161
233149181
242950201
252750221
262451241
272250262
282049292
291948312
301746342
311645373

Wind in May

Winds average 15 km/h in May.

Across May, daily wind ranges from about 13 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
116light breeze
216light breeze
316light breeze
416light breeze
516light breeze
616light breeze
716light breeze
816light breeze
916light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

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 5:16 AM to 4:53 AM, and sunset from 6:41 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:166:41
213.55:156:42
313.55:146:43
413.55:136:44
513.65:126:45
613.65:116:46
713.65:106:46
813.65:096:47
913.75:086:48
1013.75:076:49
1113.75:066:50
1213.85:056:51
1313.85:046:52
1413.85:036:52
1513.85:026:53
1613.95:016:54
1713.95:016:55
1813.95:006:56
1914.04:596:56
2014.04:596:57
2114.04:586:58
2214.04:576:59
2314.04:576:59
2414.14:567:00
2514.14:557:01
2614.14:557:02
2714.14:547:02
2814.24:547:03
2914.24:537:04
3014.24:537:04
3114.24:537:05

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.59 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.99 kWh/m² to a high of 5.59 kWh/m² in May across the year — May's 5.59 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in May

Hazard calendar for Kasumi

In seasonPeak

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

Kasumi 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 Kasumi?

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

5.9
Sightseeing
3rd-best month of the year
2.4
Beach & pool
6th-best month of the year

May is a reasonable time to visit Kasumi for sightseeing.

What to pack for Kasumi in May

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

In May, Kasumi sees daytime highs around 19°C and nights near 15°C. Worth packing: rain gear and sun protection. About 12 days see rain.

rain gearsun protection

Sea temperature near Kasumi in May

The nearest coast averages about 17°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 27°C and coldest in February near 12°C.

It's comfortable for a long swim from Jun 13 to Nov 7 — about 4.9 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec16Cool

UV index in Kasumi 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 Kasumi peaks around July 16 at about 10 (extreme) — 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 highVery highModerateJul 16UV 10Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov3Moderate
Dec2Moderate

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

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1221 µg/m³Sep 1710 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb16Moderate
Mar20Moderate
Apr21Moderate
May18Moderate
Jun14Moderate
Jul12Good
Aug10Good
Sep10Good
Oct10Good
Nov11Good
Dec12Good
Location & terrain

Where is Kasumi?

Kasumi sits at 35.6°N, 134.6°E, 46 m above sea level, in Japan. The nearest listed city is Toyooka, 20 km away.

Topography around Kasumi

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

Within 3 km, the terrain around Kasumi has significant variations in elevation — a maximum elevation change of 375 m around an average of 86 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 955 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,487 m.

The land around Kasumi is covered by trees (70%) within 3 km, trees (57%) and water (40%) within 16 km, and trees (56%) and water (38%) within 80 km.

3 km
375 m
16 km
955 m
80 km
1,487 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Toyooka 20 km · Yabu 28 km · Kyōtango 37 km · Tottori-shi 39 km · Wadayama 41 km · Kōge 42 km · Yotsutsuji 44 km · Miyazu 52 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 Kasumi (35.6333°, 134.6333°, elevation 46 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).