Yawatahama weather in May

In May, Yawatahama sees average daytime highs of 24°C and overnight lows near 15°C, with 146 mm of rain across 10.8 wet days and about 13.7 hours of daylight. It is the 5th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 29% of the time in May, and the air most often feels dry.

Daylight stretches from about 13 h 18 min at the start of May to 14 hours by month's end. Set against the rest of the year, May is Yawatahama's 10th-clearest and 8th-windiest month. For the whole year in context, see Yawatahama's year-round climate.

Daytime high
24°
5th warmest
Overnight low
15°
8th coldest
Rainfall
146 mm
10.8 wet days
Daylight
13 h 42 min
5:15 AM – 6:58 PM
Cloud cover
63%
10th clearest
Wind
9 km/h
8th windiest
Solar energy
5.5 kWh/m²
Travel score
6.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 25°C by the end.

A typical May day in Yawatahama reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, May runs about 4°C warmer than April and about 3°C cooler than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12213
22213
32213
42314
52314
62314
72314
82314
92314
102314
112314
122315
132415
142415
152415
162415
172415
182415
192415
202415
212416
222516
232516
242516
252516
262516
272516
282516
292517
302517
312517

How May really feels in Yawatahama

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.

Yawatahama weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 63101.4102.2
Feb11° / 749.81.310.82.7
Mar15° / 11311.90.211.74.2
Apr20° / 11°12510.6012.86.1
May24° / 15°14610.8013.76.7
Jun27° / 19°26314.9014.25.5
Jul30° / 24°21014.90144.1
Aug32° / 24°13112.7013.23.7
Sep29° / 21°17212.7012.25.3
Oct23° / 15°1388.4011.27.2
Nov18° / 818.5010.36.0
Dec12° / 7810.30.69.83.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 59%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34555
44555
54456
64456
74357
84258
94258
104159
114159
124060
134060
144159
154060
164060
174060
184060
194159
204159
214060
224060
234060
243961
253862
263862
273763
283763
293565
303565
313466

Chance of precipitation in May

Any precipitation

Yawatahama gets around 146 mm of rain over 10.8 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 34% and peaks near 36% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
132
232
332
433
533
633
734
834
935
1035
1136
1236
1336
1436
1536
1635
1735
1835
1935
2035
2134
2234
2334
2434
2534
2634
2734
2834
2934
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 47% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
164211230
264211230
362221240
460231340
560231340
658241350
757251350
856261350
954271360
1053281360
1153281360
1252291270
1351301270
1450311270
1549321270
1648331270
1747341270
1846341270
1945351370
2044351470
2142351480
2241351580
2340361681
2438361881
2537361981
2635362181
2733362381
2831352581
2929352791
30263429101
31243430101

Wind in May

Winds average 9 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
169calm
179calm
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 18 min at the start of May to 14 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:28 AM to 5:07 AM, and sunset from 6:47 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.35:286:47
213.35:276:48
313.45:266:48
413.45:256:49
513.45:246:50
613.55:236:51
713.55:226:51
813.55:216:52
913.55:206:53
1013.65:206:54
1113.65:196:55
1213.65:186:55
1313.75:176:56
1413.75:166:57
1513.75:156:58
1613.75:156:58
1713.75:146:59
1813.85:137:00
1913.85:137:00
2013.85:127:01
2113.85:117:02
2213.95:117:03
2313.95:107:03
2413.95:107:04
2513.95:097:05
2613.95:097:05
2714.05:087:06
2814.05:087:07
2914.05:077:07
3014.05:077:08
3114.05:077:09

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.5 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.5 kWh/m² in May across the year — May's 5.5 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.6Bright
205.6Bright
215.6Bright
225.6Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.4Bright
305.4Bright
315.3Bright
Planning a trip in May

Hazard calendar for Yawatahama

In seasonPeak

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

Yawatahama 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 Yawatahama?

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

6.7
Sightseeing
2nd-best month of the year
5.5
Beach & pool
5th-best month of the year

May is a reasonable time to visit Yawatahama for sightseeing.

What to pack for Yawatahama in May

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

In May, Yawatahama sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

Sea temperature near Yawatahama 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 15°C.

It's comfortable for a long swim from Jun 3 to Nov 25 — about 5.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov21Refreshing
Dec18Cool

UV index in Yawatahama 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 Yawatahama peaks around June 23 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 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highModerateJun 23UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7Very high
May8Very high
Jun10Extreme
Jul10Very high
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Yawatahama 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 Yawatahama 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 Yawatahama?

Yawatahama sits at 33.5°N, 132.4°E, 9 m above sea level, in Japan. The nearest listed city is Ōzu, 12 km away.

Topography around Yawatahama

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

Within 3 km, the terrain around Yawatahama has significant variations in elevation — a maximum elevation change of 566 m around an average of 147 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 812 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Yawatahama is covered by trees (82%) within 3 km, trees (59%) and water (35%) within 16 km, and water (51%) and trees (45%) within 80 km.

3 km
566 m
16 km
812 m
80 km
1,895 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Ōzu 12 km · Uwa 13 km · Uchiko 22 km · Uwajima 29 km · Iyo 41 km · Masaki-chō 45 km · Haramachi 48 km · Matsuyama 52 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 Yawatahama (33.4574°, 132.4328°, elevation 9 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).