Myoko weather in May

In May, Myoko sees average daytime highs of 19°C and overnight lows near 10°C, with 130 mm of rain across 14 wet days and about 14 hours of daylight. It is the 5th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 18°C in the first days to 21°C by the end. The sky is clear or mostly clear about 26% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 30 min at the start of May to 14 h 18 min by month's end. Set against the rest of the year, May is Myoko's 2nd-clearest and 7th-windiest month. For the whole year in context, see Myoko's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
7th coldest
Rainfall
130 mm
14 wet days
Daylight
14 hours
4:44 AM – 6:42 PM
Cloud cover
65%
2nd clearest
Wind
7 km/h
7th windiest
Solar energy
5.68 kWh/m²
Travel score
5.6
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 18°C in the first days to 21°C by the end.

A typical May day in Myoko reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 24°C. Set against its neighbours, May runs about 6°C warmer than April and about 4°C cooler than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1178
2178
3188
4188
5188
6189
7189
8189
9199
10199
111910
121910
131910
141910
151910
161910
172011
182011
192011
202011
212011
222011
232012
242112
252112
262112
272112
282112
292113
302113
312113

How May really feels in Myoko

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.

Myoko weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°24225.423.59.70.0
Feb / -3°17920.918.410.60.0
Mar / -1°1622013.311.70.6
Apr13° / 11714.82.712.93.4
May19° / 10°130140145.6
Jun23° / 16°16616.5014.55.4
Jul26° / 20°24921.1014.34.8
Aug28° / 21°19119.7013.44.8
Sep24° / 17°20417.2012.35.4
Oct18° / 11°18816.40114.9
Nov12° / 16618.23.4102.5
Dec / -1°2272315.69.50.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% 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 61%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14258
24159
34159
44258
54159
64159
74159
84060
94060
104060
114060
124060
134060
144060
154060
164060
174060
184060
193961
203961
213961
223862
233862
243862
253763
263763
273763
283565
293664
303565
313565

Chance of precipitation in May

Any precipitation

Myoko gets around 130 mm of rain over 14 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 45% and peaks near 47% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
144
244
344
444
544
644
744
845
945
1045
1146
1246
1346
1447
1547
1647
1747
1846
1946
2046
2146
2245
2345
2445
2544
2644
2743
2843
2943
3043
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 85% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29640
39640
49550
59460
69460
79370
89370
99280
109181
119091
129091
1389101
1489101
1588111
1687121
1787121
1886131
1985141
2084151
2182162
2280182
2379192
2478202
2577212
2675223
2773243
2871254
2969274
3066295
3163316

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 30 min at the start of May to 14 h 18 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 4:59 AM to 4:34 AM, and sunset from 6:29 PM to 6:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.54:596:29
213.54:586:30
313.64:576:31
413.64:566:32
513.64:556:33
613.74:546:34
713.74:526:35
813.74:516:35
913.84:506:36
1013.84:496:37
1113.84:486:38
1213.94:486:39
1313.94:476:40
1413.94:466:41
1513.94:456:42
1614.04:446:42
1714.04:436:43
1814.04:426:44
1914.14:426:45
2014.14:416:46
2114.14:406:47
2214.14:396:47
2314.24:396:48
2414.24:386:49
2514.24:386:50
2614.24:376:51
2714.24:366:51
2814.34:366:52
2914.34:356:53
3014.34:356:54
3114.34:346:54

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.68 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.02 kWh/m² to a high of 5.68 kWh/m² in May across the year — May's 5.68 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.6Bright
95.6Bright
105.6Bright
115.6Bright
125.6Bright
135.6Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
315.8Bright
Planning a trip in May

Hazard calendar for Myoko

In seasonPeak

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

Myoko 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 Myoko?

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

5.6
Sightseeing
1st-best month of the year
2.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Myoko for sightseeing.

What to pack for Myoko in May

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

In May, Myoko sees daytime highs around 19°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 14 days see rain.

rain gearsun protection

Sea temperature near Myoko in May

The nearest coast averages about 15°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 16 km away) is warmest in August at about 27°C and coldest in March near 10°C.

It's comfortable for a long swim from Jun 20 to Nov 1 — about 4.4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan13Bracing
Feb11Bracing
Mar10Bracing
Apr11Bracing
May15Bracing
Jun20Cool
Jul23Refreshing
Aug27Warm
Sep25Warm
Oct22Refreshing
Nov19Cool
Dec15Cool

UV index in Myoko in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Myoko peaks around August 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 12UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar4Moderate
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep9Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Myoko 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 Myoko is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 1510 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar20Moderate
Apr21Moderate
May20Moderate
Jun18Moderate
Jul15Moderate
Aug13Moderate
Sep12Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Myoko?

Myoko sits at 37.0°N, 138.3°E, 79 m above sea level, in Japan. The nearest listed city is Arai, 4.0 km away.

Topography around Myoko

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

Within 3 km, the terrain around Myoko has significant variations in elevation — a maximum elevation change of 317 m around an average of 100 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,556 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,978 m.

The land around Myoko is covered by trees (39%), cropland (34%) and artificial surfaces (20%) within 3 km, trees (74%) within 16 km, and trees (60%) and water (29%) within 80 km.

3 km
317 m
16 km
1,556 m
80 km
2,978 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Arai 4.0 km · Jōetsu 14 km · Iiyama 22 km · Nakano 32 km · Itoigawa 36 km · Suzaka 42 km · Nagano 42 km · Kashiwazaki 46 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 Myoko (37.0253°, 138.2556°, elevation 79 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).