Kuji weather in May

In May, Kuji sees average daytime highs of 14°C and overnight lows near 10°C, with 100 mm of precipitation across 11.5 wet days and about 14.2 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 16°C by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 42 min at the start of May to 14 h 36 min by month's end. Set against the rest of the year, May is Kuji's 8th-clearest and 9th-windiest month. For the whole year in context, see Kuji's year-round climate.

Daytime high
14°
6th warmest
Overnight low
10°
7th coldest
Precipitation
100 mm
11.5 wet days
Daylight
14 h 12 min
4:23 AM – 6:36 PM
Cloud cover
64%
8th clearest
Wind
13 km/h
9th windiest
Solar energy
5.48 kWh/m²
Travel score
4.1
out of 10

Kuji is city in Iwate Prefecture, Japan.

Density
55/km²
people per km²
Founded
1954

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 13°C in the first days to 16°C by the end.

A typical May day in Kuji reaches about 14°C in the afternoon and slips back to 10°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 18°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°151015202531
Avg high (°C)Avg low (°C)
1138
2138
3138
4138
5138
6138
7148
8149
9149
10149
11149
12149
13149
14149
151410
161410
171510
181510
191510
201510
211510
221510
231511
241511
251511
261611
271611
281611
291611
301612
311612

How May really feels in Kuji

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.

Kuji weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°609.78.89.50.0
Feb / -3°578.77.810.40.0
Mar / 8010.96.311.70.4
Apr10° / 8711.51.9132.3
May14° / 10°10011.5014.24.1
Jun18° / 14°10711.5014.85.2
Jul22° / 18°14614.8014.65.7
Aug24° / 20°15214.2013.66.2
Sep21° / 18°15812.8012.35.9
Oct17° / 12°12610.2010.95.3
Nov11° / 639.80.99.82.7
Dec / 63105.89.20.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 57%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14852
24753
34753
44654
54654
64555
74555
84555
94456
104456
114357
124456
134357
144357
154357
164357
174357
184258
194258
204258
214258
224258
234258
244258
254258
264159
274159
284159
294159
304159
314159

Chance of precipitation in May

Any precipitationSnow

Kuji gets around 100 mm of rain and snow over 11.5 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 37% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)Snow chance (%)
1372
2372
3371
4371
5371
6371
7381
8380
9380
10380
11380
12380
13380
14380
15380
16380
17380
18380
19370
20370
21370
22370
23360
24360
25360
26360
27360
28360
29360
30360
31350

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
12991
13991
14991
15991
16991
17991
18982
19982
20973
21973
22964
23955
24946
25937
26928
27919
289010
298812
308614
318416

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 42 min at the start of May to 14 h 36 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 4:40 AM to 4:12 AM, and sunset from 6:21 PM to 6:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.74:406:21
213.74:386:22
313.84:376:23
413.84:366:24
513.84:356:25
613.94:336:26
713.94:326:27
813.94:316:28
914.04:306:29
1014.04:296:30
1114.14:286:31
1214.14:276:32
1314.14:266:33
1414.24:256:34
1514.24:246:35
1614.24:236:36
1714.24:226:37
1814.34:216:38
1914.34:206:39
2014.34:196:39
2114.44:186:40
2214.44:176:41
2314.44:176:42
2414.54:166:43
2514.54:156:44
2614.54:156:45
2714.54:146:46
2814.64:136:47
2914.64:136:47
3014.64:126:48
3114.64:126:49

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.48 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 1.87 kWh/m² to a high of 5.48 kWh/m² in May across the year — May's 5.48 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
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.4Bright
155.4Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.6Bright
245.6Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Hazard calendar for Kuji

In seasonPeak

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

Kuji 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 Kuji?

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

4.1
Sightseeing
6th-best month of the year
0.1
Beach & pool
6th-best month of the year

May is a reasonable time to visit Kuji for sightseeing.

What to pack for Kuji in May

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

In May, Kuji sees daytime highs around 14°C and nights near 10°C. Worth packing: a warm layer, rain gear and sun protection. About 12 days see rain.

a warm layerrain gearsun protection

Sea temperature near Kuji in May

The nearest coast averages about 10°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 21°C and coldest in March near 6°C.

It's comfortable for a long swim from Aug 8 to Sep 25 — about 1.6 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarm
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar6Bracing
Apr7Bracing
May10Bracing
Jun14Bracing
Jul18Cool
Aug21Refreshing
Sep21Refreshing
Oct18Cool
Nov15Cool
Dec12Bracing

UV index in Kuji 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 Kuji peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 1 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighVery highHighModerateLowAug 18UV 9Jan 10UV 1
UV index (midday)Level
Jan1Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep7High
Oct5Moderate
Nov2Moderate
Dec2Low

Air quality in Kuji 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 Kuji is worst in March — around 23 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 2323 µg/m³Aug 1012 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar23Moderate
Apr23Moderate
May21Moderate
Jun15Moderate
Jul12Moderate
Aug12Moderate
Sep14Moderate
Oct14Moderate
Nov13Moderate
Dec13Moderate
Location & terrain

Where is Kuji?

Kuji sits at 40.2°N, 141.8°E, 7 m above sea level, in Japan. The nearest listed city is Ōno, 16 km away.

Topography around Kuji

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

Within 3 km, the terrain around Kuji has only modest variations in elevation — a maximum elevation change of 192 m around an average of 52 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 803 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,128 m.

The land around Kuji is covered by trees (59%) and artificial surfaces (24%) within 3 km, trees (61%) and water (32%) within 16 km, and trees (61%) and water (32%) within 80 km.

3 km
192 m
16 km
803 m
80 km
2,128 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ōno 16 km · Ninohe 40 km · Hachinohe 42 km · Nanaku 48 km · Hakurōmachi 54 km · Hitokawame 57 km · Miyako 62 km · Hachimantai 63 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 Kuji (40.1878°, 141.7689°, elevation 7 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).