Tateyama weather in July

In July, Tateyama sees average daytime highs of 25°C and overnight lows near 23°C, with 146 mm of rain across 10.7 wet days and about 14.1 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 25% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 18 min at the start of July to 13 h 48 min by month's end. Set against the rest of the year, July is Tateyama's 11th-clearest and 10th-windiest month. For the whole year in context, see Tateyama's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
23°
11th coldest
Rainfall
146 mm
10.7 wet days
Daylight
14 h 06 min
4:42 AM – 6:50 PM
Cloud cover
68%
11th clearest
Wind
22 km/h
10th windiest
Solar energy
5.26 kWh/m²
Travel score
6.6
out of 10

Tateyama is city in Chiba Prefecture, Japan.

Density
455/km²
people per km²
Founded
1939

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical July day in Tateyama reaches about 25°C in the afternoon and slips back to 23°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, July runs about 3°C warmer than June and about 2°C cooler than August.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12322
22322
32422
42422
52422
62422
72423
82423
92423
102423
112423
122423
132523
142523
152523
162523
172524
182524
192524
202524
212524
222524
232524
242524
252624
262624
272624
282625
292625
302625
312625

Tateyama weather by month

How July compares with the rest of the year at a glance. July is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan11° / 969.59.93.0
Feb11° / 969.910.72.9
Mar14° / 10°16214.111.73.6
Apr16° / 14°13511.612.95.0
May19° / 17°14810.913.86.0
Jun22° / 20°2101314.35.8
Jul25° / 23°14610.714.16.6
Aug26° / 25°100913.36.8
Sep25° / 23°19513.312.26.2
Oct22° / 19°24113.511.16.1
Nov18° / 15°13811.910.25.6
Dec14° / 10°8810.19.74.2

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 9% of July, with mostly cloudy or overcast conditions the remaining 66%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
12575
22674
32773
42773
52872
62872
72971
82971
92971
102971
113070
123070
133070
143070
153169
163169
173268
183367
193466
203466
213565
223664
233862
243961
254060
264258
274456
284456
294654
304852
314852

Chance of precipitation in July

Any precipitation

Tateyama gets around 146 mm of rain over 10.7 wet days in July. 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 45% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
145
245
344
443
543
642
741
840
939
1038
1137
1236
1335
1434
1533
1632
1731
1831
1930
2030
2129
2229
2329
2428
2528
2628
2727
2827
2926
3026
3125

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 55% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11845451
21842481
31739512
41737532
51734553
61632574
71630585
80628606
90526627
100524638
110523639
1204216510
1304206412
1404196413
1504186315
1604176316
1703166318
1803166120
1903156022
2003145924
2103145726
2202135728
2302135431
2402125333
2502115136
2602114938
2702104741
280294643
290294446
300194248
310184051

Wind in July

Winds average 22 km/h in July.

Across July, daily wind ranges from about 20 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
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2420breezy
2520breezy
2620breezy
2720breezy
2820breezy
2920light breeze
3020light breeze
3120light breeze

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 18 min at the start of July to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 4:34 AM to 4:53 AM, and sunset from 6:54 PM to 6:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.34:346:54
214.34:346:54
314.34:356:54
414.34:356:53
514.34:366:53
614.34:366:53
714.34:376:53
814.34:376:53
914.24:386:53
1014.24:386:52
1114.24:396:52
1214.24:406:52
1314.24:406:51
1414.24:416:51
1514.24:416:51
1614.14:426:50
1714.14:436:50
1814.14:436:49
1914.14:446:49
2014.14:456:48
2114.04:456:48
2214.04:466:47
2314.04:476:47
2414.04:476:46
2514.04:486:45
2613.94:496:45
2713.94:506:44
2813.94:506:43
2913.94:516:42
3013.84:526:42
3113.84:536:41

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.26 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 5.41 kWh/m² in May across the year — July's 5.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.9Bright
34.9Bright
44.9Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.1Bright
105.1Bright
115.1Bright
125.2Bright
135.2Bright
145.2Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.4Bright
215.4Bright
225.4Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in July

Hazard calendar for Tateyama

In seasonPeak

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

Tateyama 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 July a good time to visit Tateyama?

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

6.6
Sightseeing
2nd-best month of the year
5.9
Beach & pool
2nd-best month of the year

July is a reasonable time to visit Tateyama for sightseeing.

What to pack for Tateyama in July

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

In July, Tateyama sees daytime highs around 25°C and nights near 23°C. Worth packing: light clothes, rain gear, sun protection and a windbreaker. About 11 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Tateyama in July

The nearest coast averages about 24°C in July — 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 25 to Dec 4 — about 6.4 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
Oct24Refreshing
Nov22Refreshing
Dec19Cool

UV index in Tateyama in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tateyama peaks around August 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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 highHighModerateAug 10UV 10Dec 23UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5Moderate
Apr7High
May9Very high
Jun10Very high
Jul10Extreme
Aug10Extreme
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Tateyama in July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.

Air quality in Tateyama 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 Tateyama?

Tateyama sits at 35.0°N, 139.9°E, 7 m above sea level, in Japan. The nearest listed city is Minamibōsō, 8.0 km away.

Topography around Tateyama

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

Within 3 km, the terrain around Tateyama has only modest variations in elevation — a maximum elevation change of 159 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 354 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,372 m.

The land around Tateyama is covered by trees (45%) and artificial surfaces (26%) within 3 km, water (59%) and trees (32%) within 16 km, and water (66%) within 80 km.

3 km
159 m
16 km
354 m
80 km
1,372 m
treesgrasslandcroplandartificial surfaceswater
July weather nearby: Minamibōsō 8.0 km · Kamogawa 25 km · Miura 28 km · Kurihama 31 km · Futtsu 37 km · Yokosuka 38 km · Kimitsu 41 km · Hayama 42 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 Tateyama (34.9833°, 139.8667°, 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).