Minamiarupusu weather in May

In May, Minamiarupusu sees average daytime highs of 18°C and overnight lows near 9°C, with 175 mm of rain across 14.8 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 17°C in the first days to 20°C by the end. The sky is clear or mostly clear about 21% 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 Minamiarupusu's 9th-clearest and 6th-windiest month. For the whole year in context, see Minamiarupusu's year-round climate.

Daytime high
18°
5th warmest
Overnight low
7th coldest
Rainfall
175 mm
14.8 wet days
Daylight
13 h 54 min
4:46 AM – 6:39 PM
Cloud cover
70%
9th clearest
Wind
5 km/h
6th windiest
Solar energy
5.39 kWh/m²
Travel score
5.2
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 Minamiarupusu reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 23°C. Set against its neighbours, May runs about 5°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1177
2177
3177
4177
5177
6178
7188
8188
9188
10188
11188
12189
13189
14189
15189
16199
17199
18199
191910
201910
211910
221910
231910
241910
251910
262011
272011
282011
292011
302011
312011

How May really feels in Minamiarupusu

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.

Minamiarupusu 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 / -6°807.76.89.90.0
Feb / -6°939.16.810.70.0
Mar / -2°166147.211.71.3
Apr14° / 16814.11.712.93.6
May18° / 17514.8013.95.2
Jun21° / 14°24318.9014.44.8
Jul25° / 18°26921.3014.24.9
Aug26° / 19°19220.9013.35.0
Sep22° / 15°27018.2012.25.2
Oct17° / 24615.6011.14.8
Nov12° / 12110.90.310.13.1
Dec / -2°808.33.59.60.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 21% 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 (%)
14258
24258
34258
44159
54060
64060
73862
83862
93664
103664
113565
123466
133367
143367
153367
163367
173268
183268
193268
203169
213169
223070
232971
242971
252971
262872
272872
282674
292674
302476
312476

Chance of precipitation in May

Any precipitation

Minamiarupusu gets around 175 mm of rain over 14.8 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 47% and peaks near 50% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
244
344
444
544
645
745
846
946
1047
1147
1247
1347
1447
1547
1647
1747
1847
1947
2047
2147
2248
2348
2448
2548
2648
2748
2848
2949
3049
3150

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 91% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29631
39631
49631
59631
69631
79541
89541
99541
109451
119451
129451
139361
149361
159361
169271
179271
189271
199181
209091
219091
2289101
2389101
2488111
2588111
2687121
2786131
2885141
2984151
3083161
3181181

Wind in May

Winds average 5 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

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 5:01 AM to 4:37 AM, and sunset from 6:26 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.45:016:26
213.55:006:27
313.54:586:28
413.54:576:29
513.64:566:29
613.64:556:30
713.64:546:31
813.64:536:32
913.74:526:33
1013.74:516:34
1113.74:506:34
1213.84:506:35
1313.84:496:36
1413.84:486:37
1513.84:476:38
1613.94:466:39
1713.94:456:39
1813.94:456:40
1914.04:446:41
2014.04:436:42
2114.04:436:43
2214.04:426:43
2314.04:416:44
2414.14:416:45
2514.14:406:46
2614.14:406:46
2714.14:396:47
2814.24:396:48
2914.24:386:48
3014.24:386:49
3114.24:376:50

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.39 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 5.39 kWh/m² in May across the year — May's 5.39 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.3Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.4Bright
195.4Bright
205.4Bright
215.5Bright
225.5Bright
235.5Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Is May a good time to visit Minamiarupusu?

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

5.2
Sightseeing
1st-best month of the year
1.9
Beach & pool
5th-best month of the year

May is a reasonable time to visit Minamiarupusu for sightseeing.

What to pack for Minamiarupusu in May

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

In May, Minamiarupusu sees daytime highs around 18°C and nights near 9°C. Pack rain gear. Worth having: sun protection. About 15 days see rain.

rain gearsun protection

Sea temperature near Minamiarupusu in May

The nearest coast averages about 19°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 56 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 30 to Nov 23 — about 5.9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Warm
Aug27Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Minamiarupusu in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Minamiarupusu peaks around July 14 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highExtremeVery highModerateJul 14UV 11Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul11Extreme
Aug10Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Minamiarupusu 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 Minamiarupusu is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1623 µg/m³Dec 1610 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb20Moderate
Mar20Moderate
Apr23Moderate
May20Moderate
Jun17Moderate
Jul13Moderate
Aug12Good
Sep12Good
Oct12Good
Nov11Good
Dec10Good
Location & terrain

Where is Minamiarupusu?

Minamiarupusu sits at 35.6°N, 138.5°E, 297 m above sea level, in Japan. The nearest listed city is Minami-Alps, 1.0 km away.

Topography around Minamiarupusu

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

Within 3 km, the terrain around Minamiarupusu has significant variations in elevation — a maximum elevation change of 435 m around an average of 317 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 2,365 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,735 m.

The land around Minamiarupusu is covered by artificial surfaces (47%) and cropland (24%) within 3 km, trees (66%) within 16 km, and trees (83%) within 80 km.

3 km
435 m
16 km
2,365 m
80 km
3,735 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Minami-Alps 1.0 km · Chūō 4.0 km · Ryūō 6.0 km · Shōwa 7.0 km · Kai 9.0 km · Nirasaki 10 km · Kofu 11 km · Isawa 16 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 Minamiarupusu (35.6086°, 138.4647°, elevation 297 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. 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).