Kimitsu weather in May

In May, Kimitsu sees average daytime highs of 19°C and overnight lows near 17°C, with 138 mm of rain across 10.9 wet days and about 13.8 hours of daylight. It is the 6th-warmest and 6th-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 27% of the time in May, and the air most often feels comfortable.

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 Kimitsu's 10th-clearest and 8th-windiest month. For the whole year in context, see Kimitsu's year-round climate.

Daytime high
19°
6th warmest
Overnight low
17°
7th coldest
Rainfall
138 mm
10.9 wet days
Daylight
13 h 54 min
4:41 AM – 6:32 PM
Cloud cover
66%
10th clearest
Wind
18 km/h
8th windiest
Solar energy
5.25 kWh/m²
Travel score
6.0
out of 10

Kimitsu is city in Chiba Prefecture, Japan.

Density
261/km²
people per km²
Founded
1971

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 18°C in the first days to 21°C by the end.

A typical May day in Kimitsu reaches about 19°C in the afternoon and slips back to 17°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 21°C. Set against its neighbours, May runs about 3°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11815
21815
31815
41815
51815
61916
71916
81916
91916
101916
111916
121916
131916
141916
151917
161917
172017
182017
192017
202017
212017
222017
232018
242018
252018
262018
272118
282118
292118
302118
312118

Kimitsu 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
Jan10° / 827.40.49.92.5
Feb10° / 838.50.710.72.4
Mar13° / 144130.211.73.3
Apr16° / 13°12611.6012.94.8
May19° / 17°13810.9013.86.0
Jun22° / 20°18212.9014.35.8
Jul25° / 23°14711.5014.16.4
Aug27° / 25°1079.8013.36.5
Sep25° / 22°18513.2012.26.2
Oct21° / 18°22212.7011.16.1
Nov17° / 13°11510.7010.15.3
Dec13° / 738.509.73.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 62%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24555
34357
44258
54258
64159
74060
83961
93862
103763
113664
123664
133664
143664
153664
163664
173664
183763
193763
203664
213763
223763
233862
243763
253763
263763
273763
283763
293565
303466
313466

Chance of precipitation in May

Any precipitation

Kimitsu gets around 138 mm of rain over 10.9 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 35% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
434
534
634
734
834
934
1035
1135
1235
1335
1436
1536
1636
1736
1836
1936
2035
2135
2235
2335
2435
2534
2634
2734
2834
2934
3034
3134

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the comfortable band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15233141
25034151
34835171
44635181
54436201
64236211
74037221
83837241
93638252
103538262
113338272
123139282
133039292
142840303
152640313
162540323
172340334
182140354
192040365
201839375
211739386
221638397
231438408
241337419
251336429
2612354310
2711344411
2810334513
2910314514
309304615
318294617

Wind in May

Winds average 18 km/h in May.

Across May, daily wind ranges from about 16 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3016light breeze
3116light breeze

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 4:55 AM to 4:32 AM, and sunset from 6:20 PM to 6:44 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.44:556:20
213.44:546:21
313.54:536:22
413.54:526:23
513.54:516:23
613.64:506:24
713.64:496:25
813.64:486:26
913.74:476:27
1013.74:466:28
1113.74:456:28
1213.74:446:29
1313.84:446:30
1413.84:436:31
1513.84:426:32
1613.94:416:32
1713.94:406:33
1813.94:406:34
1913.94:396:35
2014.04:386:36
2114.04:386:36
2214.04:376:37
2314.04:366:38
2414.04:366:39
2514.14:356:39
2614.14:356:40
2714.14:346:41
2814.14:346:41
2914.24:336:42
3014.24:336:43
3114.24:326:44

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 2.28 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
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.2Bright
Planning a trip in May

Hazard calendar for Kimitsu

In seasonPeak

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

Kimitsu 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 Kimitsu?

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

6.0
Sightseeing
5th-best month of the year
2.8
Beach & pool
6th-best month of the year

May is a reasonable time to visit Kimitsu for sightseeing.

What to pack for Kimitsu in May

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

In May, Kimitsu sees daytime highs around 19°C and nights near 17°C. Worth packing: rain gear and sun protection. About 11 days see rain.

rain gearsun protection

Sea temperature near Kimitsu in May

The nearest coast averages about 18°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 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 5 to Nov 9 — about 5.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar14Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov20Cool
Dec17Cool

UV index in Kimitsu 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 Kimitsu peaks around August 10 at about 10 (extreme) — 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 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateAug 10UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Kimitsu 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 Kimitsu is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 12 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1525 µg/m³Dec 1612 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb25Moderate
Mar23Moderate
Apr26Moderate
May21Moderate
Jun18Moderate
Jul13Moderate
Aug12Moderate
Sep12Moderate
Oct14Moderate
Nov14Moderate
Dec12Good
Location & terrain

Where is Kimitsu?

Kimitsu sits at 35.4°N, 139.9°E, 4 m above sea level, in Japan. The nearest listed city is Futtsu, 6.0 km away.

Topography around Kimitsu

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

Within 3 km, the terrain around Kimitsu has only modest variations in elevation — a maximum elevation change of 76 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 380 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,656 m.

The land around Kimitsu is covered by artificial surfaces (50%) and water (25%) within 3 km, water (54%) and trees (24%) within 16 km, and water (46%), trees (25%) and artificial surfaces (21%) within 80 km.

3 km
76 m
16 km
380 m
80 km
1,656 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Futtsu 6.0 km · Kisarazu 7.0 km · Sodegaura 15 km · Yokosuka 20 km · Kurihama 20 km · Yokohama 22 km · Sugita 23 km · Kawasaki 23 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 Kimitsu (35.3504°, 139.8703°, elevation 4 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).