Katagami weather in May

In May, Katagami sees average daytime highs of 18°C and overnight lows near 12°C, with 112 mm of rain across 12.6 wet days and about 14.2 hours of daylight. It is the 6th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 16°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 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 Katagami's 3rd-clearest and 8th-windiest month. For the whole year in context, see Katagami's year-round climate.

Daytime high
18°
6th warmest
Overnight low
12°
7th coldest
Rainfall
112 mm
12.6 wet days
Daylight
14 h 12 min
4:30 AM – 6:42 PM
Cloud cover
64%
3rd clearest
Wind
13 km/h
8th windiest
Solar energy
5.55 kWh/m²
Travel score
5.3
out of 10

Katagami is city in Akita Prefecture, Japan.

Density
325/km²
people per km²
Founded
2005

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 16°C in the first days to 20°C by the end.

A typical May day in Katagami reaches about 18°C in the afternoon and slips back to 12°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 21°C. Set against its neighbours, May runs about 5°C warmer than April and about 4°C cooler than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1159
2169
31610
41610
51610
61610
71610
81610
91711
101711
111711
121711
131711
141711
151712
161812
171812
181812
191812
201812
211813
221913
231913
241913
251913
261914
271914
282014
292014
302014
312014

How May really feels in Katagami

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.

Katagami weather by month

How May compares with the rest of the year at a glance. May is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°9619.118.59.50.0
Feb / -1°8116.214.210.40.0
Mar / 9715.97.611.70.8
Apr13° / 9713.20.5133.2
May18° / 12°11212.6014.25.3
Jun22° / 17°11311.3014.86.2
Jul26° / 21°19114.8014.55.8
Aug27° / 23°19314.9013.65.7
Sep24° / 19°16813.9012.36.0
Oct18° / 12°15114.3010.95.2
Nov12° / 14217.91.69.82.5
Dec / 13521.411.29.20.4

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 13% of May, with mostly cloudy or overcast conditions the remaining 59%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24456
34357
44357
54258
64159
74159
84060
94060
103961
113961
123862
133862
143862
153862
163961
173961
183961
193961
204060
214060
224060
234159
244258
254258
264357
274357
284357
294357
304456
314456

Chance of precipitation in May

Any precipitation

Katagami gets around 112 mm of rain over 12.6 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 40% and peaks near 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
143
243
343
443
543
643
743
844
944
1044
1144
1243
1343
1443
1542
1642
1741
1841
1941
2040
2139
2239
2338
2437
2537
2636
2736
2835
2935
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 80% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19820
29730
39730
49730
59640
69640
79550
89550
99460
109370
119280
129190
1390100
1489110
1587130
1685150
1784160
1882180
1979201
2077221
2175241
2272271
2369292
2467312
2564333
2662353
2759374
2856395
2953416
3050437
3147458

Wind in May

Winds average 13 km/h in May.

Across May, daily wind ranges from about 12 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light breeze
1314light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012calm
3112calm

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 4:47 AM to 4:20 AM, and sunset from 6:27 PM to 6:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.74:476:27
213.74:466:28
313.74:456:29
413.84:446:30
513.84:426:31
613.94:416:32
713.94:406:33
813.94:396:34
914.04:386:35
1014.04:376:36
1114.04:356:37
1214.14:346:38
1314.14:336:39
1414.14:326:40
1514.24:316:41
1614.24:306:42
1714.24:306:43
1814.34:296:44
1914.34:286:45
2014.34:276:46
2114.34:266:47
2214.44:256:48
2314.44:256:48
2414.44:246:49
2514.54:236:50
2614.54:236:51
2714.54:226:52
2814.54:216:53
2914.54:216:54
3014.64:206:54
3114.64:206:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.55 kWh/m².

For context, solar energy here swings from a low near 1.59 kWh/m² to a high of 5.62 kWh/m² in June across the year — May's 5.55 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
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.6Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Katagami

In seasonPeak

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

Katagami 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 Katagami?

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

5.3
Sightseeing
5th-best month of the year
1.6
Beach & pool
6th-best month of the year

May is a reasonable time to visit Katagami for sightseeing.

What to pack for Katagami in May

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

In May, Katagami sees daytime highs around 18°C and nights near 12°C. Worth packing: rain gear and sun protection. About 13 days see rain.

rain gearsun protection

Sea temperature near Katagami in May

The nearest coast averages about 14°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 25°C and coldest in March near 9°C.

It's comfortable for a long swim from Jun 30 to Oct 23 — about 3.8 months when the water holds above 20°C.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar9Bracing
Apr10Bracing
May14Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep24Warm
Oct21Refreshing
Nov17Cool
Dec14Bracing

UV index in Katagami 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 Katagami peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 19UV 8Jan 1UV 1
UV index (midday)Level
Jan1Low
Feb2Moderate
Mar3Moderate
Apr6High
May8Very high
Jun7Very high
Jul5Moderate
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec1Low

Air quality in Katagami 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 Katagami is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1721 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr21Moderate
May20Moderate
Jun15Moderate
Jul13Moderate
Aug11Good
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Katagami?

Katagami sits at 39.9°N, 140.0°E, 10 m above sea level, in Japan. The nearest listed city is Tennō, 4.0 km away.

Topography around Katagami

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

Within 3 km, the terrain around Katagami has only modest variations in elevation — a maximum elevation change of 28 m around an average of 4 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 477 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,621 m.

The land around Katagami is covered by cropland (40%), trees (22%) and water (20%) within 3 km, water (36%), trees (31%) and cropland (25%) within 16 km, and trees (52%) and water (38%) within 80 km.

3 km
28 m
16 km
477 m
80 km
1,621 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Tennō 4.0 km · Oga 13 km · Akita 21 km · Moritake 25 km · Noshiro 37 km · Kita-Akita 49 km · Takanosu 49 km · Yurihonjō 55 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 Katagami (39.8787°, 139.9977°, elevation 10 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).