Shinjō weather in May

In May, Shinjō sees average daytime highs of 19°C and overnight lows near 10°C, with 106 mm of rain across 12.7 wet days and about 14.1 hours of daylight. It is the 5th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 17°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 36 min at the start of May to 14 h 30 min by month's end. Set against the rest of the year, May is Shinjō's 3rd-clearest and 7th-windiest month. For the whole year in context, see Shinjō's year-round climate.

Daytime high
19°
5th warmest
Overnight low
10°
8th coldest
Rainfall
106 mm
12.7 wet days
Daylight
14 h 06 min
4:32 AM – 6:38 PM
Cloud cover
67%
3rd clearest
Wind
8 km/h
7th windiest
Solar energy
5.25 kWh/m²
Travel score
5.6
out of 10

Shinjō is city in Yamagata Prefecture, Japan.

Density
185/km²
people per km²
Founded
1949

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 21°C by the end.

A typical May day in Shinjō 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 14°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
3178
4178
5178
6189
7189
8189
9189
10189
11189
121810
131810
141910
151910
161910
171910
181910
191911
202011
212011
222011
232011
242011
252012
262012
272112
282112
292112
302112
312113

How May really feels in Shinjō

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.

Shinjō weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°13623.423.89.60.0
Feb / -3°1001918.910.50.0
Mar / -1°11818.713.111.70.6
Apr13° / 10414.32.5133.3
May19° / 10°10612.7014.15.6
Jun23° / 15°12313014.76.0
Jul26° / 19°20117.1014.45.4
Aug27° / 20°15715013.55.6
Sep23° / 16°13414.1012.35.8
Oct17° / 10°13114.20114.9
Nov11° / 11917.93.89.92.2
Dec / -1°14422.616.99.30.1

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 12% of May, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43862
53862
63763
73664
83664
93664
103664
113664
123763
133763
143763
153862
163763
173763
183862
193862
203961
213961
223961
233961
244060
254159
264060
274060
284159
294060
304159
313961

Chance of precipitation in May

Any precipitation

Shinjō gets around 106 mm of rain over 12.7 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 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
244
344
443
543
643
743
843
943
1043
1143
1243
1343
1443
1543
1643
1742
1842
1941
2041
2140
2239
2339
2438
2537
2637
2736
2836
2935
3035
3135

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 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19730
29730
39640
49640
59640
69640
79640
89550
99550
109550
119460
129361
139271
149271
159181
169091
1789101
1888111
1986131
2085141
2184151
2282171
2380182
2478202
2577212
2675232
2774242
2871263
2970273
3068293
3165314

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 36 min at the start of May to 14 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over May. Sunrise moves from 4:48 AM to 4:22 AM, and sunset from 6:24 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.64:486:24
213.64:476:25
313.74:466:26
413.74:446:27
513.74:436:28
613.84:426:29
713.84:416:30
813.84:406:31
913.94:396:32
1013.94:386:33
1113.94:376:34
1214.04:366:34
1314.04:356:35
1414.04:346:36
1514.14:336:37
1614.14:326:38
1714.14:316:39
1814.24:306:40
1914.24:296:41
2014.24:296:42
2114.24:286:43
2214.34:276:44
2314.34:266:44
2414.34:266:45
2514.44:256:46
2614.44:246:47
2714.44:246:48
2814.44:236:48
2914.44:236:49
3014.54:226:50
3114.54:226:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.25 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.67 kWh/m² to a high of 5.25 kWh/m² in May across the year — May's 5.25 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.2Bright
65.2Bright
75.2Bright
85.2Bright
95.2Bright
105.2Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.4Bright
235.4Bright
245.4Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in May

Hazard calendar for Shinjō

In seasonPeak

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

Shinjō 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 Shinjō?

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

5.6
Sightseeing
3rd-best month of the year
2.4
Beach & pool
5th-best month of the year

May is a reasonable time to visit Shinjō for sightseeing.

What to pack for Shinjō in May

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

In May, Shinjō sees daytime highs around 19°C and nights near 10°C. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

Sea temperature near Shinjō in May

The nearest coast averages about 14°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 55 km away) is warmest in August at about 26°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 26 to Oct 25 — about 4 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb10Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct21Refreshing
Nov18Cool
Dec14Bracing

UV index in Shinjō 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 Shinjō peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul7High
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Shinjō 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 Shinjō is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 159 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb13Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Shinjō?

Shinjō sits at 38.8°N, 140.3°E, 99 m above sea level, in Japan. The nearest listed city is Obanazawa, 19 km away.

Topography around Shinjō

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

Within 3 km, the terrain around Shinjō has only modest variations in elevation — a maximum elevation change of 203 m around an average of 114 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,190 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,215 m.

The land around Shinjō is covered by cropland (43%), trees (28%) and artificial surfaces (26%) within 3 km, trees (74%) and cropland (20%) within 16 km, and trees (69%) within 80 km.

3 km
203 m
16 km
1,190 m
80 km
2,215 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Obanazawa 19 km · Murayama 34 km · Shonai 36 km · Higashine 37 km · Yachi 37 km · Tsuruoka 42 km · Sakata 42 km · Sagae 43 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 Shinjō (38.7586°, 140.3008°, elevation 99 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).