Kamogawa weather in May

In May, Kamogawa sees average daytime highs of 19°C and overnight lows near 17°C, with 158 mm of rain across 11.5 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 20°C by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels humid.

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

Daytime high
19°
6th warmest
Overnight low
17°
7th coldest
Rainfall
158 mm
11.5 wet days
Daylight
13 h 48 min
4:41 AM – 6:31 PM
Cloud cover
66%
10th clearest
Wind
21 km/h
8th windiest
Solar energy
5.45 kWh/m²
Travel score
5.9
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 20°C by the end.

A typical May day in Kamogawa 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 17°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
51816
61816
71816
81916
91916
101916
111916
121916
131916
141917
151917
161917
171917
181917
192017
202017
212017
222017
232018
242018
252018
262018
272018
282018
292018
302118
312118

Kamogawa 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 daysDaylight (hours)Travel score
Jan11° / 104109.92.6
Feb11° / 10410.710.72.5
Mar13° / 17614.911.73.3
Apr16° / 13°14312.112.94.8
May19° / 17°15811.513.85.9
Jun22° / 20°22013.714.35.7
Jul25° / 23°14911.514.16.5
Aug26° / 25°1039.513.36.7
Sep25° / 23°21114.612.26.0
Oct21° / 18°25314.511.15.9
Nov17° / 14°16013.410.25.2
Dec13° / 103119.73.8

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 9% of May, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34258
44258
54159
64060
73961
83862
93763
103664
113664
123664
133565
143565
153565
163664
173664
183664
193763
203664
213664
223763
233862
243763
253763
263664
273664
283664
293565
303565
313466

Chance of precipitation in May

Any precipitation

Kamogawa gets around 158 mm of rain 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 rain averages around 36% and peaks near 38% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
134
234
334
434
535
635
736
836
937
1037
1137
1238
1338
1438
1538
1638
1738
1838
1937
2037
2137
2237
2336
2436
2536
2636
2736
2836
2936
3036
3136

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14735171
24535181
34336201
44136211
53936232
63737242
73637262
83437272
93237282
103138293
112938303
122838313
132638324
142538334
152338345
162237365
172137376
181936396
191835407
201635418
211534429
2214334310
2313324411
2412314512
2511304613
2610294614
2710284715
289284717
298274718
307264720
317254621

Wind in May

Winds average 21 km/h in May.

Across May, daily wind ranges from about 19 km/h on the calmest days to 22 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
122breezy
222breezy
322breezy
422breezy
522breezy
622breezy
722breezy
822breezy
922breezy
1022breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320light breeze
2420light breeze
2520light breeze
2620light breeze
2719light breeze
2819light breeze
2919light breeze
3019light breeze
3119light 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 6:19 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.44:556:19
213.44:546:20
313.54:536:20
413.54:526:21
513.54:516:22
613.64:506:23
713.64:496:24
813.64:486:24
913.64:476:25
1013.74:466:26
1113.74:456:27
1213.74:446:28
1313.84:436:29
1413.84:426:29
1513.84:426:30
1613.84:416:31
1713.94:406:32
1813.94:396:33
1913.94:396:33
2013.94:386:34
2114.04:376:35
2214.04:376:36
2314.04:366:36
2414.04:356:37
2514.14:356:38
2614.14:346:39
2714.14:346:39
2814.14:336:40
2914.14:336:41
3014.14:326:41
3114.24:326:42

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.45 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 5.49 kWh/m² in August across the year — May's 5.45 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
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.4Bright
Planning a trip in May

Hazard calendar for Kamogawa

In seasonPeak

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

Kamogawa 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 Kamogawa?

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

5.9
Sightseeing
4th-best month of the year
2.7
Beach & pool
6th-best month of the year

May is a reasonable time to visit Kamogawa for sightseeing.

What to pack for Kamogawa in May

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

In May, Kamogawa sees daytime highs around 19°C and nights near 17°C. Worth packing: rain gear, sun protection and a windbreaker. About 12 days see rain.

rain gearsun protectiona windbreaker

Sea temperature near Kamogawa 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 offshore is warmest in August at about 26°C and coldest in February near 16°C.

It's comfortable for a long swim from May 26 to Dec 3 — about 6.3 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan17Cool
Feb16Cool
Mar16Cool
Apr17Cool
May19Cool
Jun22Refreshing
Jul24Refreshing
Aug26Warm
Sep26Warm
Oct23Refreshing
Nov21Refreshing
Dec19Cool

UV index in Kamogawa 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 Kamogawa 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 Kamogawa 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 Kamogawa is worst in April — around 22 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (September, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateApr 1322 µg/m³Sep 911 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr22Moderate
May21Moderate
Jun16Moderate
Jul12Good
Aug11Good
Sep11Good
Oct14Moderate
Nov14Moderate
Dec13Moderate
Location & terrain

Where is Kamogawa?

Kamogawa sits at 35.1°N, 140.1°E, 20 m above sea level, in Japan. The nearest listed city is Minamibōsō, 17 km away.

Topography around Kamogawa

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

Within 3 km, the terrain around Kamogawa has only modest variations in elevation — a maximum elevation change of 242 m around an average of 27 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 404 m; within 80 km, large variations in elevation — a maximum elevation change of 728 m.

The land around Kamogawa is covered by water (41%) and trees (28%) within 3 km, trees (50%) and water (43%) within 16 km, and water (62%) within 80 km.

3 km
242 m
16 km
404 m
80 km
728 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Minamibōsō 17 km · Katsuura 20 km · Tateyama 25 km · Isumi 31 km · Ōhara 31 km · Futtsu 35 km · Kimitsu 35 km · Kisarazu 35 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 Kamogawa (35.0969°, 140.1003°, elevation 20 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).