Kumano weather in May

In May, Kumano sees average daytime highs of 20°C and overnight lows near 16°C, with 155 mm of rain across 9.9 wet days and about 13.8 hours of daylight. It is the 6th-warmest and 4th-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 32% 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 06 min by month's end. Set against the rest of the year, May is Kumano's 10th-clearest and 9th-windiest month. For the whole year in context, see Kumano's year-round climate.

Daytime high
20°
6th warmest
Overnight low
16°
7th coldest
Rainfall
155 mm
9.9 wet days
Daylight
13 h 48 min
5:12 AM – 7:00 PM
Cloud cover
61%
10th clearest
Wind
10 km/h
9th windiest
Solar energy
5.6 kWh/m²
Travel score
6.4
out of 10

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 Kumano reaches about 20°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11914
21914
31914
41914
51914
61914
71914
82015
92015
102015
112015
122015
132015
142015
152015
162016
172116
182116
192116
202116
212116
222116
232116
242117
252117
262117
272217
282217
292217
302217
312217

How May really feels in Kumano

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.

Kumano weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 5160.6101.9
Feb / 697.70.910.72.1
Mar12° / 1169.90.211.73.4
Apr17° / 11°13610012.85.2
May20° / 16°1559.9013.86.4
Jun23° / 20°22613.2014.26.0
Jul27° / 23°22013.1014.15.8
Aug29° / 25°12010.9013.35.6
Sep26° / 22°16311.1012.26.5
Oct21° / 17°1147.5011.17.1
Nov16° / 12°706.8010.25.6
Dec11° / 616.70.19.73.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
34951
44852
54852
64654
74654
84555
94456
104456
114357
124357
134357
144456
154456
164456
174456
184456
194456
204456
214456
224456
234456
244258
254258
264258
274159
284060
293961
303961
313763

Chance of precipitation in May

Any precipitation

Kumano gets around 155 mm of rain over 9.9 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 32% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
130
230
330
430
530
631
731
832
932
1032
1133
1233
1333
1433
1533
1632
1732
1832
1932
2032
2132
2232
2332
2432
2532
2632
2732
2832
2932
3032
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 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1662860
2642961
3623071
4613171
5603271
6573481
7563581
8543691
9543691
10533791
115138101
124939101
134840111
144642111
154443121
164244131
174045131
183846151
193647161
203447171
213247191
223048211
232848232
242647252
252447272
262246302
272046322
281844353
291643373
301541404
311339435

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 24 min at the start of May to 14 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:26 AM to 5:04 AM, and sunset from 6:48 PM to 7:10 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:266:48
213.45:256:48
313.45:246:49
413.45:236:50
513.55:226:51
613.55:216:52
713.55:206:52
813.65:196:53
913.65:186:54
1013.65:176:55
1113.75:166:56
1213.75:166:56
1313.75:156:57
1413.75:146:58
1513.85:136:59
1613.85:127:00
1713.85:127:00
1813.85:117:01
1913.95:107:02
2013.95:107:03
2113.95:097:03
2213.95:087:04
2313.95:087:05
2414.05:077:05
2514.05:077:06
2614.05:067:07
2714.05:067:08
2814.15:057:08
2914.15:057:09
3014.15:047:10
3114.15:047:10

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.6 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.28 kWh/m² to a high of 5.6 kWh/m² in May across the year — May's 5.6 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.6Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Kumano

In seasonPeak

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

Kumano 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 Kumano?

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

6.4
Sightseeing
3rd-best month of the year
3.5
Beach & pool
6th-best month of the year

May is a reasonable time to visit Kumano for sightseeing.

What to pack for Kumano in May

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

In May, Kumano sees daytime highs around 20°C and nights near 16°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Kumano 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 at the nearest coast (about 24 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 13 to Nov 17 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Kumano 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 Kumano peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highModerateJul 13UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Kumano 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 Kumano is worst in April — around 22 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1322 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May20Moderate
Jun18Moderate
Jul14Moderate
Aug14Moderate
Sep12Good
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Kumano?

Kumano sits at 34.3°N, 132.6°E, 261 m above sea level, in Japan. The nearest listed city is Kaitaichi, 5.0 km away.

Topography around Kumano

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

Within 3 km, the terrain around Kumano has significant variations in elevation — a maximum elevation change of 562 m around an average of 280 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 844 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Kumano is covered by trees (72%) and artificial surfaces (22%) within 3 km, trees (56%) and artificial surfaces (20%) within 16 km, and trees (64%) and water (28%) within 80 km.

3 km
562 m
16 km
844 m
80 km
1,895 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Kaitaichi 5.0 km · Fuchū 8.0 km · Kure 11 km · Hiroshima 13 km · Etajima 13 km · Gion 15 km · Higashihiroshima 17 km · Hatsukaichi 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 Kumano (34.3328°, 132.5697°, elevation 261 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).