Tōkamachi weather in August
In August, Tōkamachi sees average daytime highs of 30°C and overnight lows near 21°C, with 171 mm of rain across 16.7 wet days and about 13.4 hours of daylight. It is the 1st-warmest and 6th-wettest month of the year here.
Highs ease over the month, from about 31°C in the first days to 29°C by the end. The sky is clear or mostly clear about 23% of the time in August, and the air most often feels oppressive.
Daylight stretches from about 13 h 54 min at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Tōkamachi's 2nd-clearest and 11th-windiest month. For the whole year in context, see Tōkamachi's year-round climate.
- Daytime high
- 30°
- 1st warmest
- Overnight low
- 21°
- 12th coldest
- Rainfall
- 171 mm
- 16.7 wet days
- Daylight
- 13 h 24 min
- 5:06 AM – 6:32 PM
- Cloud cover
- 64%
- 2nd clearest
- Wind
- 5 km/h
- 11th windiest
- Solar energy
- 5.06 kWh/m²
- Travel score
- 4.2
- out of 10
Tōkamachi is city in Niigata Prefecture, Japan.
- Density
- 90/km²
- people per km²
- Founded
- 1954
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Highs ease over the month, from about 31°C in the first days to 29°C by the end.
A typical August day in Tōkamachi reaches about 30°C in the afternoon and slips back to 21°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 34°C. Set against its neighbours, August runs about 2°C warmer than July and about 4°C warmer than September.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 31 | 22 |
| 2 | 31 | 22 |
| 3 | 31 | 22 |
| 4 | 31 | 22 |
| 5 | 31 | 22 |
| 6 | 31 | 22 |
| 7 | 31 | 22 |
| 8 | 31 | 22 |
| 9 | 31 | 22 |
| 10 | 31 | 22 |
| 11 | 31 | 22 |
| 12 | 31 | 22 |
| 13 | 30 | 22 |
| 14 | 30 | 22 |
| 15 | 30 | 22 |
| 16 | 30 | 22 |
| 17 | 30 | 22 |
| 18 | 30 | 21 |
| 19 | 30 | 21 |
| 20 | 30 | 21 |
| 21 | 30 | 21 |
| 22 | 30 | 21 |
| 23 | 30 | 21 |
| 24 | 29 | 21 |
| 25 | 29 | 21 |
| 26 | 29 | 21 |
| 27 | 29 | 21 |
| 28 | 29 | 21 |
| 29 | 29 | 20 |
| 30 | 29 | 20 |
| 31 | 29 | 20 |
How August really feels in Tōkamachi
Once humidity and wind are folded in, August averages 22 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Tōkamachi weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 4° / -2° | 227 | 25.6 | 21.9 | 9.7 | 0.0 |
| Feb | 5° / -2° | 168 | 21.4 | 17.8 | 10.6 | 0.1 |
| Mar | 9° / -0° | 162 | 20.6 | 11.7 | 11.7 | 1.3 |
| Apr | 16° / 5° | 122 | 15.5 | 1.7 | 12.9 | 4.3 |
| May | 22° / 11° | 127 | 13.9 | 0 | 14 | 6.0 |
| Jun | 25° / 16° | 151 | 15.3 | 0 | 14.5 | 5.7 |
| Jul | 29° / 21° | 243 | 19.1 | 0 | 14.3 | 4.4 |
| Aug | 30° / 21° | 171 | 16.7 | 0 | 13.4 | 4.2 |
| Sep | 26° / 17° | 177 | 15.8 | 0 | 12.3 | 5.5 |
| Oct | 20° / 11° | 174 | 15.9 | 0 | 11 | 5.3 |
| Nov | 13° / 5° | 166 | 18.2 | 2.3 | 10 | 3.0 |
| Dec | 7° / -0° | 218 | 23.6 | 14.2 | 9.5 | 0.6 |
Cloud cover in August
The sky is clear or mostly clear about 23% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 60%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 40 | 40 | 40 | 40 | 40 | 40 | 41 | 42 | 42 | 42 | 41 | 41 | 41 | 41 | 42 | 41 | 40 | 40 | 41 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 38 | 38 |
| Cloudier (%) | 60 | 60 | 60 | 60 | 60 | 60 | 59 | 58 | 58 | 58 | 59 | 59 | 59 | 59 | 58 | 59 | 60 | 60 | 59 | 59 | 59 | 60 | 60 | 60 | 61 | 61 | 62 | 62 | 63 | 62 | 62 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 40 | 60 |
| 2 | 40 | 60 |
| 3 | 40 | 60 |
| 4 | 40 | 60 |
| 5 | 40 | 60 |
| 6 | 40 | 60 |
| 7 | 41 | 59 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 42 | 58 |
| 11 | 41 | 59 |
| 12 | 41 | 59 |
| 13 | 41 | 59 |
| 14 | 41 | 59 |
| 15 | 42 | 58 |
| 16 | 41 | 59 |
| 17 | 40 | 60 |
| 18 | 40 | 60 |
| 19 | 41 | 59 |
| 20 | 41 | 59 |
| 21 | 41 | 59 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 40 | 60 |
| 25 | 39 | 61 |
| 26 | 39 | 61 |
| 27 | 38 | 62 |
| 28 | 38 | 62 |
| 29 | 37 | 63 |
| 30 | 38 | 62 |
| 31 | 38 | 62 |
Chance of precipitation in August
Tōkamachi gets around 171 mm of rain over 16.7 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 54% and peaks near 57% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 49 | 49 | 49 | 49 | 49 | 50 | 50 | 50 | 51 | 51 | 52 | 53 | 53 | 54 | 54 | 55 | 55 | 56 | 56 | 56 | 57 | 57 | 57 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 |
| Rain chance (%) | |
|---|---|
| 1 | 49 |
| 2 | 49 |
| 3 | 49 |
| 4 | 49 |
| 5 | 49 |
| 6 | 50 |
| 7 | 50 |
| 8 | 50 |
| 9 | 51 |
| 10 | 51 |
| 11 | 52 |
| 12 | 53 |
| 13 | 53 |
| 14 | 54 |
| 15 | 54 |
| 16 | 55 |
| 17 | 55 |
| 18 | 56 |
| 19 | 56 |
| 20 | 56 |
| 21 | 57 |
| 22 | 57 |
| 23 | 57 |
| 24 | 57 |
| 25 | 57 |
| 26 | 57 |
| 27 | 56 |
| 28 | 56 |
| 29 | 56 |
| 30 | 56 |
| 31 | 56 |
Humidity in August
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 55% of days. Sticky, muggy-or-worse air turns up on roughly 92% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 |
| Humid (%) | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 15 |
| Muggy (%) | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 31 | 31 | 31 | 32 | 32 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 41 | 42 | 43 | 45 | 46 | 47 | 47 |
| Oppressive (%) | 67 | 67 | 66 | 66 | 65 | 65 | 64 | 63 | 62 | 62 | 61 | 60 | 60 | 60 | 58 | 58 | 58 | 56 | 55 | 53 | 52 | 50 | 49 | 47 | 45 | 43 | 41 | 39 | 37 | 35 | 33 |
| Miserable (%) | 2 | 2 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 3 | 28 | 67 | 2 |
| 2 | 0 | 3 | 28 | 67 | 2 |
| 3 | 0 | 3 | 28 | 66 | 3 |
| 4 | 0 | 3 | 28 | 66 | 3 |
| 5 | 0 | 3 | 29 | 65 | 3 |
| 6 | 0 | 3 | 29 | 65 | 3 |
| 7 | 0 | 3 | 29 | 64 | 4 |
| 8 | 0 | 3 | 30 | 63 | 4 |
| 9 | 0 | 4 | 30 | 62 | 4 |
| 10 | 0 | 4 | 30 | 62 | 4 |
| 11 | 1 | 4 | 30 | 61 | 4 |
| 12 | 1 | 4 | 31 | 60 | 4 |
| 13 | 1 | 4 | 31 | 60 | 4 |
| 14 | 1 | 4 | 31 | 60 | 4 |
| 15 | 1 | 5 | 32 | 58 | 4 |
| 16 | 1 | 5 | 32 | 58 | 4 |
| 17 | 1 | 5 | 32 | 58 | 4 |
| 18 | 1 | 6 | 33 | 56 | 4 |
| 19 | 2 | 6 | 34 | 55 | 3 |
| 20 | 2 | 7 | 35 | 53 | 3 |
| 21 | 2 | 7 | 36 | 52 | 3 |
| 22 | 2 | 8 | 37 | 50 | 3 |
| 23 | 2 | 8 | 38 | 49 | 3 |
| 24 | 2 | 9 | 39 | 47 | 2 |
| 25 | 2 | 10 | 41 | 45 | 2 |
| 26 | 2 | 11 | 42 | 43 | 2 |
| 27 | 2 | 12 | 43 | 41 | 2 |
| 28 | 2 | 13 | 45 | 39 | 2 |
| 29 | 2 | 14 | 46 | 37 | 1 |
| 30 | 2 | 15 | 47 | 35 | 1 |
| 31 | 3 | 15 | 47 | 33 | 1 |
Wind in August
Winds average 5 km/h in August.
Across August, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 5 | calm |
| 2 | 5 | calm |
| 3 | 5 | calm |
| 4 | 5 | calm |
| 5 | 5 | calm |
| 6 | 5 | calm |
| 7 | 5 | calm |
| 8 | 5 | calm |
| 9 | 5 | calm |
| 10 | 5 | calm |
| 11 | 5 | calm |
| 12 | 5 | calm |
| 13 | 5 | calm |
| 14 | 5 | calm |
| 15 | 5 | calm |
| 16 | 5 | calm |
| 17 | 5 | calm |
| 18 | 5 | calm |
| 19 | 5 | calm |
| 20 | 5 | calm |
| 21 | 5 | calm |
| 22 | 5 | calm |
| 23 | 5 | calm |
| 24 | 5 | calm |
| 25 | 5 | calm |
| 26 | 5 | calm |
| 27 | 5 | calm |
| 28 | 5 | calm |
| 29 | 5 | calm |
| 30 | 5 | calm |
| 31 | 5 | calm |
Sunrise & sunset in August
Daylight runs from about 13 h 54 min 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 60 minutes over August. Sunrise moves from 4:53 AM to 5:19 AM, and sunset from 6:49 PM to 6:11 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 13.0 | 12.9 | 12.9 |
| Sunrise (AM) | 4:53 | 4:54 | 4:55 | 4:56 | 4:57 | 4:57 | 4:58 | 4:59 | 5:00 | 5:01 | 5:02 | 5:03 | 5:03 | 5:04 | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 |
| Sunset (PM) | 6:49 | 6:48 | 6:47 | 6:46 | 6:45 | 6:44 | 6:43 | 6:42 | 6:40 | 6:39 | 6:38 | 6:37 | 6:36 | 6:35 | 6:33 | 6:32 | 6:31 | 6:30 | 6:28 | 6:27 | 6:26 | 6:24 | 6:23 | 6:21 | 6:20 | 6:19 | 6:17 | 6:16 | 6:14 | 6:13 | 6:11 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.9 | 4:53 | 6:49 |
| 2 | 13.9 | 4:54 | 6:48 |
| 3 | 13.9 | 4:55 | 6:47 |
| 4 | 13.8 | 4:56 | 6:46 |
| 5 | 13.8 | 4:57 | 6:45 |
| 6 | 13.8 | 4:57 | 6:44 |
| 7 | 13.7 | 4:58 | 6:43 |
| 8 | 13.7 | 4:59 | 6:42 |
| 9 | 13.7 | 5:00 | 6:40 |
| 10 | 13.6 | 5:01 | 6:39 |
| 11 | 13.6 | 5:02 | 6:38 |
| 12 | 13.6 | 5:03 | 6:37 |
| 13 | 13.5 | 5:03 | 6:36 |
| 14 | 13.5 | 5:04 | 6:35 |
| 15 | 13.5 | 5:05 | 6:33 |
| 16 | 13.4 | 5:06 | 6:32 |
| 17 | 13.4 | 5:07 | 6:31 |
| 18 | 13.4 | 5:08 | 6:30 |
| 19 | 13.3 | 5:09 | 6:28 |
| 20 | 13.3 | 5:09 | 6:27 |
| 21 | 13.3 | 5:10 | 6:26 |
| 22 | 13.2 | 5:11 | 6:24 |
| 23 | 13.2 | 5:12 | 6:23 |
| 24 | 13.1 | 5:13 | 6:21 |
| 25 | 13.1 | 5:14 | 6:20 |
| 26 | 13.1 | 5:15 | 6:19 |
| 27 | 13.0 | 5:15 | 6:17 |
| 28 | 13.0 | 5:16 | 6:16 |
| 29 | 13.0 | 5:17 | 6:14 |
| 30 | 12.9 | 5:18 | 6:13 |
| 31 | 12.9 | 5:19 | 6:11 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.06 kWh/m².
For context, solar energy here swings from a low near 1.86 kWh/m² to a high of 5.67 kWh/m² in May across the year — August's 5.06 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.1 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 | 4.8 | 4.7 | 4.7 | 4.7 | 4.6 | 4.6 | 4.5 | 4.5 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.4 | Bright |
| 2 | 5.4 | Bright |
| 3 | 5.4 | Bright |
| 4 | 5.4 | Bright |
| 5 | 5.4 | Bright |
| 6 | 5.4 | Bright |
| 7 | 5.3 | Bright |
| 8 | 5.3 | Bright |
| 9 | 5.3 | Bright |
| 10 | 5.3 | Bright |
| 11 | 5.2 | Bright |
| 12 | 5.2 | Bright |
| 13 | 5.1 | Bright |
| 14 | 5.1 | Bright |
| 15 | 5.1 | Bright |
| 16 | 5.0 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.0 | Bright |
| 19 | 4.9 | Bright |
| 20 | 4.9 | Bright |
| 21 | 4.9 | Bright |
| 22 | 4.8 | Bright |
| 23 | 4.8 | Bright |
| 24 | 4.8 | Bright |
| 25 | 4.7 | Bright |
| 26 | 4.7 | Bright |
| 27 | 4.7 | Bright |
| 28 | 4.6 | Bright |
| 29 | 4.6 | Bright |
| 30 | 4.5 | Bright |
| 31 | 4.5 | Bright |
Hazard calendar for Tōkamachi
In August, Tōkamachi sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Tōkamachi sits in the Pacific typhoon belt; the season peaks July–October.
Is August a good time to visit Tōkamachi?
Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
August is a reasonable time to visit Tōkamachi for sightseeing.
What to pack for Tōkamachi in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Tōkamachi sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.
Sea temperature near Tōkamachi in August
The nearest coast averages about 27°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 30 km away) is warmest in August at about 27°C and coldest in March near 10°C.
It's comfortable for a long swim from Jun 21 to Oct 31 — about 4.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 12 | 11 | 10 | 11 | 15 | 20 | 23 | 27 | 25 | 22 | 18 | 15 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 12 | Bracing |
| Feb | 11 | Bracing |
| Mar | 10 | Bracing |
| Apr | 11 | Bracing |
| May | 15 | Bracing |
| Jun | 20 | Cool |
| Jul | 23 | Refreshing |
| Aug | 27 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 18 | Cool |
| Dec | 15 | Cool |
UV index in Tōkamachi in August
Clear-sky midday UV in August 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 Tōkamachi peaks around August 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 5 | 7 | 8 | 9 | 10 | 10 | 8 | 5 | 3 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 10 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Moderate |
Air quality in Tōkamachi in August
Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.
Air quality in Tōkamachi is worst in April — around 23 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 15 | 22 | 23 | 22 | 19 | 17 | 14 | 12 | 12 | 11 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 15 | Moderate |
| Mar | 22 | Moderate |
| Apr | 23 | Moderate |
| May | 22 | Moderate |
| Jun | 19 | Moderate |
| Jul | 17 | Moderate |
| Aug | 14 | Moderate |
| Sep | 12 | Moderate |
| Oct | 12 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Tōkamachi?
Tōkamachi sits at 37.1°N, 138.8°E, 154 m above sea level, in Japan. The nearest listed city is Minamiuonuma, 11 km away.
Topography around Tōkamachi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tōkamachi.
Within 3 km, the terrain around Tōkamachi has significant variations in elevation — a maximum elevation change of 340 m around an average of 207 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 970 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,551 m.
The land around Tōkamachi is covered by trees (54%) and artificial surfaces (21%) within 3 km, trees (75%) within 16 km, and trees (69%) and water (20%) within 80 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
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 Tōkamachi (37.1333°, 138.7667°, elevation 154 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).