Hitoyoshi weather in May

In May, Hitoyoshi sees average daytime highs of 23°C and overnight lows near 14°C, with 202 mm of rain across 12.6 wet days and about 13.6 hours of daylight. It is the 5th-warmest and 3rd-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 22% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 13 h 54 min by month's end. Set against the rest of the year, May is Hitoyoshi's 10th-clearest and 6th-windiest month. For the whole year in context, see Hitoyoshi's year-round climate.

Daytime high
23°
5th warmest
Overnight low
14°
8th coldest
Rainfall
202 mm
12.6 wet days
Daylight
13 h 36 min
5:24 AM – 7:03 PM
Cloud cover
69%
10th clearest
Wind
7 km/h
6th windiest
Solar energy
5.04 kWh/m²
Travel score
6.2
out of 10

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 Hitoyoshi 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 19°C and 26°C. Set against its neighbours, May runs about 4°C warmer than April and about 2°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52213
62213
72213
82213
92213
102213
112213
122214
132214
142214
152314
162314
172314
182314
192314
202314
212314
222315
232315
242315
252315
262315
272415
282415
292415
302416
312416

How May really feels in Hitoyoshi

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.

Hitoyoshi weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 819.72.310.11.7
Feb10° / 104101.610.82.3
Mar14° / 15213.50.411.83.8
Apr19° / 17812.3012.85.5
May23° / 14°20212.6013.66.2
Jun25° / 18°49719.6014.15.0
Jul28° / 22°36320.5013.94.2
Aug30° / 23°17918013.24.2
Sep27° / 19°18514.4012.25.7
Oct22° / 13°1109.2011.27.0
Nov17° / 1028.6010.35.6
Dec11° / 8590.99.92.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 67%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43862
53862
63763
73763
83664
93565
103565
113466
123466
133466
143466
153466
163367
173367
183367
193367
203367
213367
223367
233367
243169
253070
263070
273070
282971
292971
302872
312773

Chance of precipitation in May

Any precipitation

Hitoyoshi gets around 202 mm of rain over 12.6 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 41% and peaks near 43% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
141
240
341
441
541
641
741
841
941
1041
1141
1241
1341
1440
1540
1640
1740
1839
1939
2039
2139
2239
2340
2440
2540
2640
2741
2841
2942
3042
3143

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. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
165201230
264211230
363211330
461221340
560221440
659231440
758231450
857241450
956241460
1055251460
1154261460
1253261470
1352271470
1451281470
1550291470
1650301470
1749301470
1847311470
1946321570
2045331570
2143341670
2242341770
2340351870
2438361970
2536362070
2634372170
2732372280
2830372480
2928382591
30263826101
31243728111

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over May. Sunrise moves from 5:37 AM to 5:16 AM, and sunset from 6:52 PM to 7:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:376:52
213.35:366:52
313.35:356:53
413.35:346:54
513.45:336:55
613.45:326:55
713.45:316:56
813.45:306:57
913.55:296:58
1013.55:286:58
1113.55:286:59
1213.55:277:00
1313.65:267:00
1413.65:257:01
1513.65:257:02
1613.65:247:03
1713.75:237:03
1813.75:237:04
1913.75:227:05
2013.75:217:05
2113.85:217:06
2213.85:207:07
2313.85:207:07
2413.85:197:08
2513.85:197:09
2613.95:187:09
2713.95:187:10
2813.95:177:11
2913.95:177:11
3013.95:177:12
3113.95:167:12

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.04 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.45 kWh/m² to a high of 5.04 kWh/m² in May across the year — May's 5.04 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Hitoyoshi

In seasonPeak

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

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

Hitoyoshi's rainy season runs June–July, when most of the year's rain falls.

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

Is May a good time to visit Hitoyoshi?

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

6.2
Sightseeing
2nd-best month of the year
4.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Hitoyoshi for sightseeing.

What to pack for Hitoyoshi in May

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

In May, Hitoyoshi sees daytime highs around 23°C and nights near 14°C. Worth packing: light clothes, rain gear and sun protection. About 13 days see rain.

light clothesrain gearsun protection

Sea temperature near Hitoyoshi in May

The nearest coast averages about 20°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 37 km away) is warmest in August at about 28°C and coldest in February near 16°C.

It's comfortable for a long swim from May 16 to Dec 4 — about 6.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar17Cool
Apr18Cool
May20Refreshing
Jun23Refreshing
Jul26Warm
Aug28Warm
Sep27Warm
Oct24Warm
Nov22Refreshing
Dec19Cool

UV index in Hitoyoshi 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 Hitoyoshi peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJun 22UV 11Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr8Very high
May8Very high
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov5Moderate
Dec3Moderate

Air quality in Hitoyoshi 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 Hitoyoshi is worst in March — around 24 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (July, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2424 µg/m³Jul 2114 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb20Moderate
Mar24Moderate
Apr24Moderate
May22Moderate
Jun18Moderate
Jul13Moderate
Aug14Moderate
Sep14Moderate
Oct14Moderate
Nov16Moderate
Dec15Moderate
Location & terrain

Where is Hitoyoshi?

Hitoyoshi sits at 32.2°N, 130.8°E, 130 m above sea level, in Japan. The nearest listed city is Ōkuchi-shinohara, 20 km away.

Topography around Hitoyoshi

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

Within 3 km, the terrain around Hitoyoshi has only modest variations in elevation — a maximum elevation change of 194 m around an average of 134 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,122 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,715 m.

The land around Hitoyoshi is covered by trees (48%) and artificial surfaces (26%) within 3 km, trees (87%) within 16 km, and trees (67%) and water (21%) within 80 km.

3 km
194 m
16 km
1,122 m
80 km
1,715 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ōkuchi-shinohara 20 km · Ebino 21 km · Isa 21 km · Sashiki 25 km · Minamata 33 km · Kobayashi 34 km · Honmachi 35 km · Tsuruda 39 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 Hitoyoshi (32.2167°, 130.75°, elevation 130 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).