Hōjō weather in May

In May, Hōjō sees average daytime highs of 20°C and overnight lows near 16°C, with 141 mm of rain across 9.9 wet days and about 13.7 hours of daylight. It is the 6th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 33% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 13 h 18 min at the start of May to 14 h 06 min by month's end. Set against the rest of the year, May is Hōjō's 10th-clearest and 9th-windiest month. For the whole year in context, see Hōjō's year-round climate.

Daytime high
20°
6th warmest
Overnight low
16°
7th coldest
Rainfall
141 mm
9.9 wet days
Daylight
13 h 48 min
5:12 AM – 6:58 PM
Cloud cover
61%
10th clearest
Wind
10 km/h
9th windiest
Solar energy
5.66 kWh/m²
Travel score
6.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 22°C by the end.

A typical May day in Hōjō reaches about 20°C in the afternoon and slips back to 16°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11914
21914
31915
41915
51915
61915
71915
82015
92015
102016
112016
122016
132016
142016
152016
162016
172016
182116
192117
202117
212117
222117
232117
242117
252117
262117
272118
282218
292218
302218
312218

How May really feels in Hōjō

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.

Hōjō weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6410.61.1101.8
Feb10° / 7410.11.210.72.0
Mar12° / 11010.90.211.73.4
Apr17° / 12°12310.4012.85.2
May20° / 16°1419.9013.76.3
Jun23° / 20°22713.8014.25.9
Jul27° / 24°195130145.8
Aug29° / 25°11211.2013.35.6
Sep26° / 23°15911.6012.26.4
Oct21° / 18°1258.6011.17.0
Nov16° / 13°758.6010.25.5
Dec12° / 7711.20.59.83.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 33% 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 56%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24951
34852
44852
54753
64753
74654
84555
94555
104456
114456
124456
134456
144456
154456
164555
174555
184456
194456
204456
214357
224357
234357
244357
254258
264258
274159
284060
293961
303862
313763

Chance of precipitation in May

Any precipitation

Hōjō gets around 141 mm of rain over 9.9 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 32% and peaks near 33% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
532
632
732
833
933
1033
1133
1233
1333
1433
1533
1633
1732
1832
1932
2032
2131
2231
2331
2431
2531
2631
2731
2831
2932
3032
3132

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 41% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
15732101
25533111
35135122
45036122
54838132
64639132
74440142
84241152
94042162
103843162
113744172
123545182
133346192
143147202
153047212
162848222
172648242
182448262
192347283
202147303
211946323
221845343
231644364
241543384
251341405
261240436
271138457
281036478
29833499
307315111
316295312

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 18 min at the start of May to 14 h 06 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 5:26 AM to 5:04 AM, and sunset from 6:46 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:266:46
213.45:256:47
313.45:246:48
413.45:236:49
513.55:226:49
613.55:216:50
713.55:206:51
813.55:196:52
913.65:186:53
1013.65:176:53
1113.65:166:54
1213.75:156:55
1313.75:156:56
1413.75:146:56
1513.75:136:57
1613.85:126:58
1713.85:126:59
1813.85:116:59
1913.85:107:00
2013.95:107:01
2113.95:097:02
2213.95:087:02
2313.95:087:03
2413.95:077:04
2514.05:077:05
2614.05:067:05
2714.05:067:06
2814.05:057:07
2914.05:057:07
3014.15:047:08
3114.15:047:09

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.66 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.66 kWh/m² in May across the year — May's 5.66 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
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
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Hazard calendar for Hōjō

In seasonPeak

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

Hōjō 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 Hōjō?

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

6.3
Sightseeing
3rd-best month of the year
3.5
Beach & pool
6th-best month of the year

May is a reasonable time to visit Hōjō for sightseeing.

What to pack for Hōjō in May

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

In May, Hōjō sees daytime highs around 20°C and nights near 16°C. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Hōjō in May

The nearest coast averages about 17°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 18 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 12 to Nov 17 — about 5.2 months when the water holds above 20°C.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb13Bracing
Mar13Bracing
Apr15Bracing
May17Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Hōjō 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 Hōjō peaks around July 11 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJul 11UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep9Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Hōjō 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 Hōjō is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (October, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodApr 1523 µg/m³Oct 1711 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb17Moderate
Mar21Moderate
Apr23Moderate
May21Moderate
Jun19Moderate
Jul15Moderate
Aug15Moderate
Sep12Moderate
Oct11Good
Nov12Good
Dec11Good
Location & terrain

Where is Hōjō?

Hōjō sits at 34.0°N, 132.8°E, 7 m above sea level, in Japan. The nearest listed city is Matsuyama, 15 km away.

Topography around Hōjō

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

Within 3 km, the terrain around Hōjō has significant variations in elevation — a maximum elevation change of 277 m around an average of 27 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,205 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Hōjō is covered by water (39%) and trees (26%) within 3 km, water (50%) and trees (41%) within 16 km, and trees (57%) and water (36%) within 80 km.

3 km
277 m
16 km
1,205 m
80 km
1,895 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Matsuyama 15 km · Masaki-chō 22 km · Tōon 23 km · Haramachi 23 km · Imabari 23 km · Iyo 26 km · Kure 34 km · Saijō 38 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 Hōjō (33.9766°, 132.7777°, 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).