Masaki-chō weather in July

In July, Masaki-chō sees average daytime highs of 29°C and overnight lows near 23°C, with 239 mm of rain across 16.8 wet days and about 14 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 20% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 h 12 min at the start of July to 13 h 42 min by month's end. Set against the rest of the year, July is Masaki-chō's 11th-clearest and 10th-windiest month. For the whole year in context, see Masaki-chō's year-round climate.

Daytime high
29°
2nd warmest
Overnight low
23°
11th coldest
Rainfall
239 mm
16.8 wet days
Daylight
14 hours
5:13 AM – 7:16 PM
Cloud cover
71%
11th clearest
Wind
7 km/h
10th windiest
Solar energy
5.27 kWh/m²
Travel score
4.7
out of 10

Masaki-chō is town in Iyo district, Ehime prefecture, Japan.

Density
1,497/km²
people per km²
Founded
1922

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 27°C in the first days to 30°C by the end.

A typical July day in Masaki-chō reaches about 29°C in the afternoon and slips back to 23°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, July runs about 4°C warmer than June and about 1°C cooler than August.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12722
22722
32722
42722
52722
62722
72822
82822
92823
102823
112823
122823
132823
142823
152923
162923
172923
182923
192924
202924
212924
222924
232924
243024
253024
263024
273024
283024
293024
303024
313024

How July really feels in Masaki-chō

Once humidity and wind are folded in, July averages 12 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
12
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Masaki-chō weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 6911.33.3101.4
Feb / 7910.42.910.71.8
Mar13° / 11812.30.711.73.4
Apr18° / 10°133110.112.85.5
May22° / 15°15411.1013.76.4
Jun25° / 19°26815.7014.25.6
Jul29° / 23°23916.80144.7
Aug30° / 24°15615.8013.34.5
Sep27° / 20°18713.6012.25.9
Oct22° / 15°1419.4011.16.9
Nov16° / 839.1010.25.3
Dec11° / 8311.41.99.82.6

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 20% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 11% of July, with mostly cloudy or overcast conditions the remaining 69%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
11981
21981
31981
42080
52080
62080
72278
82377
92377
102575
112575
122773
132773
142971
153070
163169
173268
183367
193565
203664
213763
223862
233961
244060
254159
264258
274357
284456
294456
304555
314555

Chance of precipitation in July

Any precipitation

Masaki-chō gets around 239 mm of rain over 16.8 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 54% and peaks near 64% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
164
264
363
462
562
661
760
859
958
1057
1156
1255
1354
1453
1552
1652
1751
1850
1950
2050
2149
2249
2349
2449
2550
2650
2750
2850
2951
3051
3151

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 70% 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 (%)
111341440
211140470
311039500
41938520
50837550
60736570
70635590
80534610
90433630
100432640
110331660
120330661
130229681
140227701
150226711
160224731
170223741
180122752
190120772
200119782
210118783
220117793
230115804
240114814
250113815
260112825
270111835
280010846
29009856
30008866
31008866

Wind in July

Winds average 7 km/h in July.

Across July, daily wind ranges from about 7 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 h 12 min at the start of July to 13 h 42 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 5:06 AM to 5:24 AM, and sunset from 7:19 PM to 7:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.25:067:19
214.25:067:19
314.25:077:19
414.25:077:19
514.25:087:19
614.25:087:19
714.25:097:19
814.25:097:18
914.15:107:18
1014.15:107:18
1114.15:117:18
1214.15:117:17
1314.15:127:17
1414.15:127:17
1514.15:137:16
1614.05:137:16
1714.05:147:16
1814.05:157:15
1914.05:157:15
2014.05:167:14
2114.05:177:14
2213.95:177:13
2313.95:187:13
2413.95:197:12
2513.95:197:11
2613.85:207:11
2713.85:217:10
2813.85:217:09
2913.85:227:08
3013.75:237:08
3113.75:247:07

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.27 kWh/m².

For context, solar energy here swings from a low near 2.43 kWh/m² to a high of 5.57 kWh/m² in May across the year — July's 5.27 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.8Bright
54.8Bright
64.9Bright
74.9Bright
85.0Bright
95.0Bright
105.0Bright
115.1Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.4Bright
185.4Bright
195.4Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in July

Hazard calendar for Masaki-chō

In seasonPeak

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

Masaki-chō 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 Masaki-chō?

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

4.7
Sightseeing
7th-best month of the year
5.6
Beach & pool
3rd-best month of the year

July is a reasonable time to visit Masaki-chō for sightseeing.

What to pack for Masaki-chō in July

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

In July, Masaki-chō sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

Sea temperature near Masaki-chō 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 at the nearest coast (about 13 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 Masaki-chō 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 Masaki-chō 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
Feb5Moderate
Mar6High
Apr7Very high
May9Very high
Jun10Extreme
Jul10Extreme
Aug9Very high
Sep10Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Masaki-chō 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 Masaki-chō 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 Masaki-chō?

Masaki-chō sits at 33.8°N, 132.7°E, 7 m above sea level, in Japan. The nearest listed city is Iyo, 4.0 km away.

Topography around Masaki-chō

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

Within 3 km, the terrain around Masaki-chō has only modest variations in elevation — a maximum elevation change of 29 m around an average of 5 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,015 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,895 m.

The land around Masaki-chō is covered by artificial surfaces (44%), cropland (26%) and water (23%) within 3 km, water (40%) and trees (39%) within 16 km, and trees (53%) and water (41%) within 80 km.

3 km
29 m
16 km
1,015 m
80 km
1,895 m
treesgrasslandcroplandartificial surfacesbare terrainwater
July weather nearby: Iyo 4.0 km · Haramachi 8.0 km · Matsuyama 8.0 km · Tōon 17 km · Hōjō 22 km · Uchiko 27 km · Shinagawa 32 km · Ōzu 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 Masaki-chō (33.7876°, 132.7112°, 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).