Aki weather in August
In August, Aki sees average daytime highs of 28°C and overnight lows near 24°C, with 261 mm of rain across 19.6 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 4th-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 25% of the time in August, and the air most often feels oppressive.
Daylight stretches from about 13 h 42 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Aki's 9th-clearest and 12th-windiest month. For the whole year in context, see Aki's year-round climate.
- Daytime high
- 28°
- 1st warmest
- Overnight low
- 24°
- 12th coldest
- Rainfall
- 261 mm
- 19.6 wet days
- Daylight
- 13 h 18 min
- 5:31 AM – 6:46 PM
- Cloud cover
- 64%
- 9th clearest
- Wind
- 9 km/h
- 12th windiest
- Solar energy
- 5.49 kWh/m²
- Travel score
- 4.6
- out of 10
Aki is city in Kōchi Prefecture, Japan.
- Density
- 52/km²
- people per km²
- Founded
- 1954
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in August
Day-to-day highs hold fairly steady near 28°C through the month.
A typical August day in Aki reaches about 28°C in the afternoon and slips back to 24°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, August runs about 1°C warmer than July and about 2°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) | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 24 |
| 2 | 29 | 24 |
| 3 | 29 | 24 |
| 4 | 29 | 24 |
| 5 | 29 | 24 |
| 6 | 29 | 24 |
| 7 | 29 | 24 |
| 8 | 29 | 24 |
| 9 | 29 | 24 |
| 10 | 29 | 24 |
| 11 | 29 | 24 |
| 12 | 29 | 24 |
| 13 | 29 | 24 |
| 14 | 29 | 24 |
| 15 | 29 | 24 |
| 16 | 28 | 24 |
| 17 | 28 | 24 |
| 18 | 28 | 24 |
| 19 | 28 | 24 |
| 20 | 28 | 24 |
| 21 | 28 | 24 |
| 22 | 28 | 24 |
| 23 | 28 | 24 |
| 24 | 28 | 24 |
| 25 | 28 | 24 |
| 26 | 28 | 24 |
| 27 | 28 | 24 |
| 28 | 28 | 23 |
| 29 | 28 | 23 |
| 30 | 28 | 23 |
| 31 | 28 | 23 |
How August really feels in Aki
Once humidity and wind are folded in, August averages 5 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.
Aki weather by month
How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 10° / 4° | 77 | 6.4 | 0.5 | 10 | 2.3 |
| Feb | 10° / 4° | 101 | 7.8 | 0.9 | 10.8 | 2.5 |
| Mar | 13° / 7° | 167 | 11.2 | 0.1 | 11.7 | 3.8 |
| Apr | 18° / 11° | 203 | 11.6 | 0 | 12.8 | 5.4 |
| May | 21° / 16° | 236 | 12.7 | 0 | 13.7 | 6.0 |
| Jun | 24° / 20° | 358 | 19.1 | 0 | 14.2 | 5.1 |
| Jul | 27° / 23° | 353 | 20.3 | 0 | 14 | 4.7 |
| Aug | 28° / 24° | 261 | 19.6 | 0 | 13.2 | 4.6 |
| Sep | 26° / 21° | 302 | 16.9 | 0 | 12.2 | 5.5 |
| Oct | 22° / 16° | 217 | 11.3 | 0 | 11.2 | 6.6 |
| Nov | 17° / 11° | 118 | 8.1 | 0 | 10.3 | 5.8 |
| Dec | 12° / 6° | 87 | 6.1 | 0 | 9.8 | 3.6 |
Cloud cover in August
The sky is clear or mostly clear about 25% of the time in August.
Beyond those clear spells, partly cloudy skies cover about 17% of August, with mostly cloudy or overcast conditions the remaining 58%.
| 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 (%) | 41 | 41 | 42 | 41 | 41 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 43 | 43 | 42 | 42 | 42 | 44 | 44 | 45 | 45 | 44 | 44 | 44 | 44 | 43 | 43 | 42 | 42 | 42 | 42 |
| Cloudier (%) | 59 | 59 | 58 | 59 | 59 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 57 | 57 | 58 | 58 | 58 | 56 | 56 | 55 | 55 | 56 | 56 | 56 | 56 | 57 | 57 | 58 | 58 | 58 | 58 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 41 | 59 |
| 2 | 41 | 59 |
| 3 | 42 | 58 |
| 4 | 41 | 59 |
| 5 | 41 | 59 |
| 6 | 41 | 59 |
| 7 | 42 | 58 |
| 8 | 42 | 58 |
| 9 | 42 | 58 |
| 10 | 42 | 58 |
| 11 | 42 | 58 |
| 12 | 42 | 58 |
| 13 | 43 | 57 |
| 14 | 43 | 57 |
| 15 | 42 | 58 |
| 16 | 42 | 58 |
| 17 | 42 | 58 |
| 18 | 44 | 56 |
| 19 | 44 | 56 |
| 20 | 45 | 55 |
| 21 | 45 | 55 |
| 22 | 44 | 56 |
| 23 | 44 | 56 |
| 24 | 44 | 56 |
| 25 | 44 | 56 |
| 26 | 43 | 57 |
| 27 | 43 | 57 |
| 28 | 42 | 58 |
| 29 | 42 | 58 |
| 30 | 42 | 58 |
| 31 | 42 | 58 |
Chance of precipitation in August
Aki gets around 261 mm of rain over 19.6 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 64% and peaks near 65% on the wettest days.
| 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 (%) | 64 | 64 | 64 | 64 | 64 | 63 | 63 | 63 | 62 | 62 | 62 | 62 | 62 | 62 | 62 | 63 | 63 | 63 | 64 | 64 | 64 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 65 | 65 | 65 |
| Rain chance (%) | |
|---|---|
| 1 | 64 |
| 2 | 64 |
| 3 | 64 |
| 4 | 64 |
| 5 | 64 |
| 6 | 63 |
| 7 | 63 |
| 8 | 63 |
| 9 | 62 |
| 10 | 62 |
| 11 | 62 |
| 12 | 62 |
| 13 | 62 |
| 14 | 62 |
| 15 | 62 |
| 16 | 63 |
| 17 | 63 |
| 18 | 63 |
| 19 | 64 |
| 20 | 64 |
| 21 | 64 |
| 22 | 64 |
| 23 | 64 |
| 24 | 64 |
| 25 | 65 |
| 26 | 65 |
| 27 | 65 |
| 28 | 65 |
| 29 | 65 |
| 30 | 65 |
| 31 | 65 |
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 73% of days. Sticky, muggy-or-worse air turns up on roughly 97% 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 7 |
| Muggy (%) | 6 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 13 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 21 | 22 | 23 |
| Oppressive (%) | 79 | 79 | 79 | 78 | 78 | 77 | 77 | 76 | 76 | 75 | 74 | 74 | 73 | 73 | 73 | 72 | 72 | 72 | 72 | 71 | 70 | 71 | 70 | 70 | 69 | 69 | 68 | 68 | 66 | 65 | 65 |
| Miserable (%) | 15 | 16 | 16 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 5 | 4 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 0 | 6 | 79 | 15 |
| 2 | 0 | 0 | 5 | 79 | 16 |
| 3 | 0 | 0 | 5 | 79 | 16 |
| 4 | 0 | 0 | 5 | 78 | 17 |
| 5 | 0 | 0 | 5 | 78 | 17 |
| 6 | 0 | 0 | 5 | 77 | 18 |
| 7 | 0 | 0 | 5 | 77 | 18 |
| 8 | 0 | 0 | 5 | 76 | 19 |
| 9 | 0 | 0 | 5 | 76 | 19 |
| 10 | 0 | 0 | 6 | 75 | 19 |
| 11 | 0 | 1 | 6 | 74 | 19 |
| 12 | 0 | 1 | 6 | 74 | 19 |
| 13 | 0 | 1 | 7 | 73 | 19 |
| 14 | 0 | 1 | 7 | 73 | 19 |
| 15 | 0 | 1 | 8 | 73 | 18 |
| 16 | 0 | 2 | 8 | 72 | 18 |
| 17 | 0 | 2 | 9 | 72 | 17 |
| 18 | 0 | 2 | 10 | 72 | 16 |
| 19 | 0 | 2 | 11 | 72 | 15 |
| 20 | 0 | 3 | 12 | 71 | 14 |
| 21 | 1 | 3 | 13 | 70 | 13 |
| 22 | 1 | 3 | 13 | 71 | 12 |
| 23 | 1 | 4 | 14 | 70 | 11 |
| 24 | 1 | 4 | 15 | 70 | 10 |
| 25 | 1 | 5 | 16 | 69 | 9 |
| 26 | 1 | 5 | 17 | 69 | 8 |
| 27 | 1 | 6 | 18 | 68 | 7 |
| 28 | 1 | 6 | 19 | 68 | 6 |
| 29 | 1 | 7 | 21 | 66 | 5 |
| 30 | 1 | 7 | 22 | 65 | 5 |
| 31 | 1 | 7 | 23 | 65 | 4 |
Wind in August
Winds average 9 km/h in August, the calmest month.
Across August, daily wind ranges from about 9 km/h on the calmest days to 10 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) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| 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 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 10 | calm |
| 10 | 10 | calm |
| 11 | 10 | calm |
| 12 | 10 | calm |
| 13 | 10 | calm |
| 14 | 10 | calm |
| 15 | 10 | calm |
| 16 | 10 | calm |
| 17 | 9 | calm |
| 18 | 9 | calm |
| 19 | 9 | calm |
| 20 | 9 | calm |
| 21 | 9 | calm |
| 22 | 9 | calm |
| 23 | 9 | calm |
| 24 | 9 | calm |
| 25 | 9 | calm |
| 26 | 9 | calm |
| 27 | 9 | calm |
| 28 | 9 | calm |
| 29 | 9 | calm |
| 30 | 9 | calm |
| 31 | 9 | calm |
Sunrise & sunset in August
Daylight runs from about 13 h 42 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 54 minutes over August. Sunrise moves from 5:20 AM to 5:42 AM, and sunset from 7:01 PM to 6:27 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) | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 | 13.5 | 13.4 | 13.4 | 13.4 | 13.3 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 | 13.1 | 13.1 | 13.1 | 13.0 | 13.0 | 13.0 | 12.9 | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 |
| Sunrise (AM) | 5:20 | 5:21 | 5:22 | 5:22 | 5:23 | 5:24 | 5:24 | 5:25 | 5:26 | 5:27 | 5:27 | 5:28 | 5:29 | 5:29 | 5:30 | 5:31 | 5:32 | 5:32 | 5:33 | 5:34 | 5:34 | 5:35 | 5:36 | 5:37 | 5:37 | 5:38 | 5:39 | 5:39 | 5:40 | 5:41 | 5:42 |
| Sunset (PM) | 7:01 | 7:00 | 6:59 | 6:58 | 6:57 | 6:56 | 6:56 | 6:55 | 6:54 | 6:53 | 6:52 | 6:50 | 6:49 | 6:48 | 6:47 | 6:46 | 6:45 | 6:44 | 6:43 | 6:41 | 6:40 | 6:39 | 6:38 | 6:36 | 6:35 | 6:34 | 6:33 | 6:31 | 6:30 | 6:29 | 6:27 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.7 | 5:20 | 7:01 |
| 2 | 13.7 | 5:21 | 7:00 |
| 3 | 13.6 | 5:22 | 6:59 |
| 4 | 13.6 | 5:22 | 6:58 |
| 5 | 13.6 | 5:23 | 6:57 |
| 6 | 13.5 | 5:24 | 6:56 |
| 7 | 13.5 | 5:24 | 6:56 |
| 8 | 13.5 | 5:25 | 6:55 |
| 9 | 13.5 | 5:26 | 6:54 |
| 10 | 13.4 | 5:27 | 6:53 |
| 11 | 13.4 | 5:27 | 6:52 |
| 12 | 13.4 | 5:28 | 6:50 |
| 13 | 13.3 | 5:29 | 6:49 |
| 14 | 13.3 | 5:29 | 6:48 |
| 15 | 13.3 | 5:30 | 6:47 |
| 16 | 13.3 | 5:31 | 6:46 |
| 17 | 13.2 | 5:32 | 6:45 |
| 18 | 13.2 | 5:32 | 6:44 |
| 19 | 13.2 | 5:33 | 6:43 |
| 20 | 13.1 | 5:34 | 6:41 |
| 21 | 13.1 | 5:34 | 6:40 |
| 22 | 13.1 | 5:35 | 6:39 |
| 23 | 13.0 | 5:36 | 6:38 |
| 24 | 13.0 | 5:37 | 6:36 |
| 25 | 13.0 | 5:37 | 6:35 |
| 26 | 12.9 | 5:38 | 6:34 |
| 27 | 12.9 | 5:39 | 6:33 |
| 28 | 12.9 | 5:39 | 6:31 |
| 29 | 12.8 | 5:40 | 6:30 |
| 30 | 12.8 | 5:41 | 6:29 |
| 31 | 12.8 | 5:42 | 6:27 |
Solar energy in August
Average shortwave solar energy reaching the ground each day in August, about 5.49 kWh/m².
For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 5.62 kWh/m² in May across the year — August's 5.49 kWh/m² sits near the top of that range.
| 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) | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.7 | 5.6 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 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 |
| 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 | 5.7 | Bright |
| 2 | 5.7 | Bright |
| 3 | 5.7 | Bright |
| 4 | 5.7 | Bright |
| 5 | 5.7 | Bright |
| 6 | 5.7 | Bright |
| 7 | 5.7 | Bright |
| 8 | 5.7 | Bright |
| 9 | 5.6 | Bright |
| 10 | 5.6 | Bright |
| 11 | 5.6 | Bright |
| 12 | 5.6 | Bright |
| 13 | 5.5 | Bright |
| 14 | 5.5 | Bright |
| 15 | 5.5 | Bright |
| 16 | 5.5 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.4 | Bright |
| 19 | 5.4 | Bright |
| 20 | 5.4 | Bright |
| 21 | 5.4 | Bright |
| 22 | 5.3 | Bright |
| 23 | 5.3 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.2 | Bright |
| 27 | 5.2 | Bright |
| 28 | 5.1 | Bright |
| 29 | 5.1 | Bright |
| 30 | 5.1 | Bright |
| 31 | 5.0 | Bright |
Hazard calendar for Aki
In August, Aki sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Aki sits in the Pacific typhoon belt; the season peaks July–October.
Aki's rainy season runs March–October, when most of the year's rain falls.
Is August a good time to visit Aki?
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 Aki for sightseeing.
What to pack for Aki in August
From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In August, Aki sees daytime highs around 28°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.
Sea temperature near Aki in August
The nearest coast averages about 28°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 14 km away) is warmest in August at about 28°C and coldest in February near 17°C.
It's comfortable for a long swim from May 3 to Dec 19 — about 7.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 17 | 18 | 19 | 21 | 23 | 26 | 28 | 27 | 25 | 23 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Warm | Warm | Refreshing | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 17 | Cool |
| Mar | 18 | Cool |
| Apr | 19 | Cool |
| May | 21 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 26 | Warm |
| Aug | 28 | Warm |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 23 | Refreshing |
| Dec | 20 | Refreshing |
UV index in Aki in August
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 Aki peaks around June 23 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 3 | 5 | 6 | 8 | 9 | 11 | 11 | 9 | 10 | 7 | 4 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 6 | High |
| Apr | 8 | Very high |
| May | 9 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 7 | High |
| Nov | 4 | Moderate |
| Dec | 3 | Moderate |
Air quality in Aki 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 Aki is worst in April — around 20 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (September, 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 | 19 | 20 | 18 | 15 | 11 | 11 | 10 | 10 | 11 | 11 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 15 | Moderate |
| Mar | 19 | Moderate |
| Apr | 20 | Moderate |
| May | 18 | Moderate |
| Jun | 15 | Moderate |
| Jul | 11 | Good |
| Aug | 11 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 11 | Good |
Where is Aki?
Aki sits at 33.5°N, 133.9°E, 13 m above sea level, in Japan. The nearest listed city is Yamashita, 20 km away.
Topography around Aki
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Aki.
Within 3 km, the terrain around Aki has significant variations in elevation — a maximum elevation change of 426 m around an average of 37 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,031 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,939 m.
The land around Aki is covered by water (45%) and trees (23%) within 3 km, trees (53%) and water (42%) within 16 km, and trees (54%) and water (41%) 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 Aki (33.5°, 133.9°, elevation 13 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).