Tome weather in August

In August, Tome sees average daytime highs of 28°C and overnight lows near 21°C, with 135 mm of rain across 13.6 wet days and about 13.5 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°C through the month. The sky is clear or mostly clear about 16% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 14 hours at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Tome's 10th-clearest and 11th-windiest month. For the whole year in context, see Tome's year-round climate.

Daytime high
28°
1st warmest
Overnight low
21°
12th coldest
Rainfall
135 mm
13.6 wet days
Daylight
13 h 30 min
4:54 AM – 6:25 PM
Cloud cover
73%
10th clearest
Wind
8 km/h
11th windiest
Solar energy
4.45 kWh/m²
Travel score
5.3
out of 10

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 28°C through the month.

A typical August day in Tome reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, August runs about 2°C warmer than July and about 3°C warmer than September.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12822
22922
32922
42922
52922
62922
72922
82922
92922
102922
112822
122822
132822
142822
152822
162822
172822
182821
192821
202821
212821
222821
232821
242821
252821
262721
272721
282721
292721
302721
312720

How August really feels in Tome

Once humidity and wind are folded in, August 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

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Tome weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°477.14.39.60.0
Feb / -1°427.33.810.50.4
Mar10° / 8310.3311.72.1
Apr15° / 8810.70.5134.5
May20° / 11°9810.4014.16.1
Jun23° / 16°11111.2014.76.2
Jul26° / 20°15615.1014.45.5
Aug28° / 21°13513.6013.55.3
Sep25° / 18°14512.4012.36.1
Oct19° / 11°1269.30116.2
Nov13° / 587.60.29.93.9
Dec / 528.22.79.31.1

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 14% of August, with mostly cloudy or overcast conditions the remaining 70%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23070
33070
43070
53070
63169
73070
83070
93070
103070
113070
122971
133070
142971
152971
162971
172971
182971
193070
203070
213070
223070
233169
243169
253169
263070
273169
283169
293169
303169
313268

Chance of precipitation in August

Any precipitation

Tome gets around 135 mm of rain over 13.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 44% and peaks near 46% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
143
242
342
442
542
642
742
843
943
1044
1144
1245
1345
1446
1546
1646
1746
1846
1945
2045
2145
2245
2345
2445
2545
2645
2745
2844
2944
3044
3145

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 46% of days. Sticky, muggy-or-worse air turns up on roughly 80% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1041226544
2041226544
3041125564
4041125564
5041225554
6041225554
7041226544
8041226544
9041227534
10041227534
11041228524
12041228524
13041329504
14041330504
15031331494
16041331474
17141432464
18141432454
19141433444
20151533434
21151533424
22151634404
23161734394
24161734384
25161834373
26171934363
27171935353
28172035343
29182135333
30182235323
31192335303

Wind in August

Winds average 8 km/h in August.

Across August, daily wind ranges from about 7 km/h on the calmest days to 8 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
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 hours at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 4:40 AM to 5:08 AM, and sunset from 6:43 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.04:406:43
214.04:416:42
314.04:426:41
413.94:436:40
513.94:446:38
613.94:456:37
713.84:466:36
813.84:476:35
913.84:476:34
1013.74:486:33
1113.74:496:32
1213.74:506:30
1313.64:516:29
1413.64:526:28
1513.64:536:26
1613.54:546:25
1713.54:556:24
1813.44:566:22
1913.44:576:21
2013.44:586:20
2113.34:586:18
2213.34:596:17
2313.25:006:15
2413.25:016:14
2513.25:026:12
2613.15:036:11
2713.15:046:09
2813.05:056:08
2913.05:066:06
3013.05:076:05
3112.95:086:03

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 4.45 kWh/m².

For context, solar energy here swings from a low near 2.07 kWh/m² to a high of 5.42 kWh/m² in May across the year — August's 4.45 kWh/m² falls in the middle.

024151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.7Bright
84.7Bright
94.7Bright
104.6Bright
114.6Bright
124.6Bright
134.5Bright
144.5Bright
154.5Bright
164.4Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.1Bright
284.1Bright
294.1Bright
304.0Bright
314.0Bright
Planning a trip in August

Hazard calendar for Tome

In seasonPeak

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

Tome 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 August a good time to visit Tome?

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

5.3
Sightseeing
6th-best month of the year
6.0
Beach & pool
1st-best month of the year

August is a reasonable time to visit Tome for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Tome in August

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

In August, Tome sees daytime highs around 28°C and nights near 21°C. Pack light clothes. Worth having: rain gear. About 14 days see rain.

light clothesrain gear

Sea temperature near Tome in August

The nearest coast averages about 23°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 42 km away) is warmest in August at about 23°C and coldest in March near 8°C.

It's comfortable for a long swim from Jul 10 to Oct 8 — about 3 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan11Bracing
Feb9Bracing
Mar8Bracing
Apr10Bracing
May13Bracing
Jun17Cool
Jul21Refreshing
Aug23Refreshing
Sep22Refreshing
Oct19Cool
Nov16Cool
Dec14Bracing

UV index in Tome in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tome peaks around August 18 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highVery highModerateLowAug 18UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May8Very high
Jun8Very high
Jul6High
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Tome in August

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Tome is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1620 µg/m³Dec 1710 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb14Moderate
Mar19Moderate
Apr20Moderate
May19Moderate
Jun14Moderate
Jul12Moderate
Aug11Good
Sep11Good
Oct11Good
Nov11Good
Dec9Good
Location & terrain

Where is Tome?

Tome sits at 38.7°N, 141.2°E, 6 m above sea level, in Japan. The nearest listed city is Kurihara, 14 km away.

Topography around Tome

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

Within 3 km, the terrain around Tome has only modest variations in elevation — a maximum elevation change of 51 m around an average of 10 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 366 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,619 m.

The land around Tome is covered by cropland (52%) and trees (21%) within 3 km, trees (43%) and cropland (43%) within 16 km, and trees (57%) and water (28%) within 80 km.

3 km
51 m
16 km
366 m
80 km
1,619 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Kurihara 14 km · Wakuya 18 km · Kogota 20 km · Ōsaki 21 km · Kogota-ekimae 21 km · Furukawa 23 km · Ichinoseki 23 km · Naka-niida 31 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 Tome (38.7088°, 141.1558°, elevation 6 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).