Yakushima weather in July
In July, Yakushima sees average daytime highs of 27°C and overnight lows near 26°C, with 173 mm of rain across 12.6 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 30% of the time in July, and the air most often feels miserable.
Daylight stretches from about 13 h 54 min at the start of July to 13 h 30 min by month's end. Set against the rest of the year, July is Yakushima's 5th-clearest and 12th-windiest month. For the whole year in context, see Yakushima's year-round climate.
- Daytime high
- 27°
- 2nd warmest
- Overnight low
- 26°
- 11th coldest
- Rainfall
- 173 mm
- 12.6 wet days
- Daylight
- 13 h 48 min
- 5:29 AM – 7:17 PM
- Cloud cover
- 63%
- 5th clearest
- Wind
- 22 km/h
- 12th windiest
- Solar energy
- 5.86 kWh/m²
- Travel score
- 5.9
- out of 10
Yakushima is human settlement in Japan.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Day-to-day highs hold fairly steady near 27°C through the month.
A typical July day in Yakushima reaches about 27°C in the afternoon and slips back to 26°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, July runs about 3°C warmer than June and on par with August.
| 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) | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 |
| Avg low (°C) | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 26 | 25 |
| 2 | 27 | 25 |
| 3 | 27 | 25 |
| 4 | 27 | 25 |
| 5 | 27 | 26 |
| 6 | 27 | 26 |
| 7 | 27 | 26 |
| 8 | 27 | 26 |
| 9 | 27 | 26 |
| 10 | 27 | 26 |
| 11 | 27 | 26 |
| 12 | 27 | 26 |
| 13 | 27 | 26 |
| 14 | 27 | 26 |
| 15 | 28 | 26 |
| 16 | 28 | 26 |
| 17 | 28 | 26 |
| 18 | 28 | 26 |
| 19 | 28 | 26 |
| 20 | 28 | 26 |
| 21 | 28 | 27 |
| 22 | 28 | 27 |
| 23 | 28 | 27 |
| 24 | 28 | 27 |
| 25 | 28 | 27 |
| 26 | 28 | 27 |
| 27 | 28 | 27 |
| 28 | 28 | 27 |
| 29 | 28 | 27 |
| 30 | 28 | 27 |
| 31 | 28 | 27 |
How July really feels in Yakushima
Once humidity and wind are folded in, July averages 15 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 July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Yakushima weather by month
How July compares with the rest of the year at a glance. July is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 14° / 12° | 122 | 13.1 | 10.3 | 3.8 |
| Feb | 15° / 12° | 126 | 12.7 | 10.9 | 4.0 |
| Mar | 17° / 14° | 182 | 14.6 | 11.8 | 4.8 |
| Apr | 19° / 17° | 190 | 12.7 | 12.7 | 5.7 |
| May | 22° / 20° | 210 | 12.9 | 13.5 | 6.1 |
| Jun | 25° / 23° | 438 | 19.6 | 13.9 | 5.1 |
| Jul | 27° / 26° | 173 | 12.6 | 13.8 | 5.9 |
| Aug | 28° / 27° | 141 | 14.7 | 13.1 | 5.4 |
| Sep | 27° / 25° | 237 | 15.8 | 12.2 | 5.7 |
| Oct | 24° / 22° | 170 | 13 | 11.3 | 6.5 |
| Nov | 20° / 18° | 149 | 12 | 10.5 | 6.1 |
| Dec | 16° / 14° | 114 | 11.8 | 10.1 | 4.9 |
Cloud cover in July
The sky is clear or mostly clear about 30% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 10% of July, with mostly cloudy or overcast conditions the remaining 60%. Skies tend to open up as the month goes on.
| 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 (%) | 24 | 26 | 27 | 27 | 29 | 29 | 31 | 32 | 32 | 34 | 35 | 37 | 37 | 39 | 40 | 40 | 42 | 43 | 44 | 46 | 47 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 53 | 53 | 54 |
| Cloudier (%) | 76 | 74 | 73 | 73 | 71 | 71 | 69 | 68 | 68 | 66 | 65 | 63 | 63 | 61 | 60 | 60 | 58 | 57 | 56 | 54 | 53 | 53 | 52 | 51 | 50 | 49 | 48 | 47 | 47 | 47 | 46 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 24 | 76 |
| 2 | 26 | 74 |
| 3 | 27 | 73 |
| 4 | 27 | 73 |
| 5 | 29 | 71 |
| 6 | 29 | 71 |
| 7 | 31 | 69 |
| 8 | 32 | 68 |
| 9 | 32 | 68 |
| 10 | 34 | 66 |
| 11 | 35 | 65 |
| 12 | 37 | 63 |
| 13 | 37 | 63 |
| 14 | 39 | 61 |
| 15 | 40 | 60 |
| 16 | 40 | 60 |
| 17 | 42 | 58 |
| 18 | 43 | 57 |
| 19 | 44 | 56 |
| 20 | 46 | 54 |
| 21 | 47 | 53 |
| 22 | 47 | 53 |
| 23 | 48 | 52 |
| 24 | 49 | 51 |
| 25 | 50 | 50 |
| 26 | 51 | 49 |
| 27 | 52 | 48 |
| 28 | 53 | 47 |
| 29 | 53 | 47 |
| 30 | 53 | 47 |
| 31 | 54 | 46 |
Chance of precipitation in July
Yakushima gets around 173 mm of rain over 12.6 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 43% and peaks near 57% on the wettest days. The odds ease 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 (%) | 57 | 56 | 54 | 52 | 50 | 48 | 47 | 46 | 45 | 44 | 43 | 42 | 42 | 41 | 41 | 40 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 38 | 39 | 39 |
| Rain chance (%) | |
|---|---|
| 1 | 57 |
| 2 | 56 |
| 3 | 54 |
| 4 | 52 |
| 5 | 50 |
| 6 | 48 |
| 7 | 47 |
| 8 | 46 |
| 9 | 45 |
| 10 | 44 |
| 11 | 43 |
| 12 | 42 |
| 13 | 42 |
| 14 | 41 |
| 15 | 41 |
| 16 | 40 |
| 17 | 39 |
| 18 | 39 |
| 19 | 39 |
| 20 | 38 |
| 21 | 38 |
| 22 | 38 |
| 23 | 38 |
| 24 | 38 |
| 25 | 38 |
| 26 | 38 |
| 27 | 38 |
| 28 | 38 |
| 29 | 38 |
| 30 | 39 |
| 31 | 39 |
Humidity in July
Most of July feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the miserable band about 75% of days. Sticky, muggy-or-worse air turns up on roughly 100% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Humid (%) | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Muggy (%) | 7 | 6 | 6 | 5 | 4 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Oppressive (%) | 30 | 28 | 27 | 26 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 19 | 19 | 18 | 18 |
| Miserable (%) | 62 | 65 | 66 | 68 | 71 | 72 | 72 | 74 | 74 | 75 | 75 | 75 | 75 | 76 | 77 | 77 | 77 | 77 | 77 | 77 | 78 | 78 | 79 | 79 | 79 | 80 | 80 | 81 | 81 | 82 | 82 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 7 | 30 | 62 |
| 2 | 1 | 6 | 28 | 65 |
| 3 | 1 | 6 | 27 | 66 |
| 4 | 1 | 5 | 26 | 68 |
| 5 | 0 | 4 | 25 | 71 |
| 6 | 0 | 4 | 24 | 72 |
| 7 | 0 | 4 | 24 | 72 |
| 8 | 0 | 3 | 23 | 74 |
| 9 | 0 | 3 | 23 | 74 |
| 10 | 0 | 2 | 23 | 75 |
| 11 | 0 | 2 | 23 | 75 |
| 12 | 0 | 2 | 23 | 75 |
| 13 | 0 | 2 | 23 | 75 |
| 14 | 0 | 1 | 23 | 76 |
| 15 | 0 | 1 | 22 | 77 |
| 16 | 0 | 1 | 22 | 77 |
| 17 | 0 | 1 | 22 | 77 |
| 18 | 0 | 1 | 22 | 77 |
| 19 | 0 | 1 | 22 | 77 |
| 20 | 0 | 1 | 22 | 77 |
| 21 | 0 | 1 | 21 | 78 |
| 22 | 0 | 1 | 21 | 78 |
| 23 | 0 | 0 | 21 | 79 |
| 24 | 0 | 0 | 21 | 79 |
| 25 | 0 | 0 | 21 | 79 |
| 26 | 0 | 0 | 20 | 80 |
| 27 | 0 | 0 | 20 | 80 |
| 28 | 0 | 0 | 19 | 81 |
| 29 | 0 | 0 | 19 | 81 |
| 30 | 0 | 0 | 18 | 82 |
| 31 | 0 | 0 | 18 | 82 |
Wind in July
Winds average 22 km/h in July, the calmest month.
Across July, daily wind ranges from about 22 km/h on the calmest days to 24 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) | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Feels | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy | breezy |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 24 | breezy |
| 2 | 24 | breezy |
| 3 | 24 | breezy |
| 4 | 24 | breezy |
| 5 | 24 | breezy |
| 6 | 23 | breezy |
| 7 | 23 | breezy |
| 8 | 23 | breezy |
| 9 | 23 | breezy |
| 10 | 23 | breezy |
| 11 | 23 | breezy |
| 12 | 23 | breezy |
| 13 | 22 | breezy |
| 14 | 22 | breezy |
| 15 | 22 | breezy |
| 16 | 22 | breezy |
| 17 | 22 | breezy |
| 18 | 22 | breezy |
| 19 | 22 | breezy |
| 20 | 22 | breezy |
| 21 | 22 | breezy |
| 22 | 22 | breezy |
| 23 | 22 | breezy |
| 24 | 22 | breezy |
| 25 | 22 | breezy |
| 26 | 22 | breezy |
| 27 | 22 | breezy |
| 28 | 22 | breezy |
| 29 | 22 | breezy |
| 30 | 22 | breezy |
| 31 | 22 | breezy |
Sunrise & sunset in July
Daylight runs from about 13 h 54 min at the start of July to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 24 minutes over July. Sunrise moves from 5:23 AM to 5:38 AM, and sunset from 7:19 PM to 7:09 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 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 | 13.6 | 13.5 | 13.5 | 13.5 |
| Sunrise (AM) | 5:23 | 5:23 | 5:23 | 5:24 | 5:24 | 5:25 | 5:25 | 5:25 | 5:26 | 5:26 | 5:27 | 5:27 | 5:28 | 5:28 | 5:29 | 5:29 | 5:30 | 5:31 | 5:31 | 5:32 | 5:32 | 5:33 | 5:33 | 5:34 | 5:35 | 5:35 | 5:36 | 5:36 | 5:37 | 5:38 | 5:38 |
| Sunset (PM) | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:19 | 7:18 | 7:18 | 7:18 | 7:18 | 7:17 | 7:17 | 7:17 | 7:17 | 7:16 | 7:16 | 7:15 | 7:15 | 7:15 | 7:14 | 7:14 | 7:13 | 7:13 | 7:12 | 7:11 | 7:11 | 7:10 | 7:09 | 7:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.9 | 5:23 | 7:19 |
| 2 | 13.9 | 5:23 | 7:19 |
| 3 | 13.9 | 5:23 | 7:19 |
| 4 | 13.9 | 5:24 | 7:19 |
| 5 | 13.9 | 5:24 | 7:19 |
| 6 | 13.9 | 5:25 | 7:19 |
| 7 | 13.9 | 5:25 | 7:19 |
| 8 | 13.9 | 5:25 | 7:19 |
| 9 | 13.9 | 5:26 | 7:18 |
| 10 | 13.9 | 5:26 | 7:18 |
| 11 | 13.9 | 5:27 | 7:18 |
| 12 | 13.8 | 5:27 | 7:18 |
| 13 | 13.8 | 5:28 | 7:17 |
| 14 | 13.8 | 5:28 | 7:17 |
| 15 | 13.8 | 5:29 | 7:17 |
| 16 | 13.8 | 5:29 | 7:17 |
| 17 | 13.8 | 5:30 | 7:16 |
| 18 | 13.8 | 5:31 | 7:16 |
| 19 | 13.7 | 5:31 | 7:15 |
| 20 | 13.7 | 5:32 | 7:15 |
| 21 | 13.7 | 5:32 | 7:15 |
| 22 | 13.7 | 5:33 | 7:14 |
| 23 | 13.7 | 5:33 | 7:14 |
| 24 | 13.7 | 5:34 | 7:13 |
| 25 | 13.6 | 5:35 | 7:13 |
| 26 | 13.6 | 5:35 | 7:12 |
| 27 | 13.6 | 5:36 | 7:11 |
| 28 | 13.6 | 5:36 | 7:11 |
| 29 | 13.5 | 5:37 | 7:10 |
| 30 | 13.5 | 5:38 | 7:09 |
| 31 | 13.5 | 5:38 | 7:09 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 5.86 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 5.86 kWh/m² in July across the year — July's 5.86 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) | 5.2 | 5.2 | 5.3 | 5.4 | 5.4 | 5.5 | 5.6 | 5.6 | 5.7 | 5.7 | 5.8 | 5.8 | 5.8 | 5.9 | 5.9 | 5.9 | 5.9 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 | 6.0 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Intense | Intense | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.2 | Bright |
| 2 | 5.2 | Bright |
| 3 | 5.3 | Bright |
| 4 | 5.4 | Bright |
| 5 | 5.4 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.6 | Bright |
| 8 | 5.6 | Bright |
| 9 | 5.7 | Bright |
| 10 | 5.7 | Bright |
| 11 | 5.8 | Bright |
| 12 | 5.8 | Bright |
| 13 | 5.8 | Bright |
| 14 | 5.9 | Bright |
| 15 | 5.9 | Bright |
| 16 | 5.9 | Bright |
| 17 | 5.9 | Bright |
| 18 | 6.0 | Bright |
| 19 | 6.0 | Bright |
| 20 | 6.0 | Bright |
| 21 | 6.0 | Bright |
| 22 | 6.0 | Intense |
| 23 | 6.0 | Intense |
| 24 | 6.0 | Intense |
| 25 | 6.0 | Intense |
| 26 | 6.0 | Intense |
| 27 | 6.0 | Bright |
| 28 | 6.0 | Bright |
| 29 | 6.0 | Bright |
| 30 | 6.0 | Bright |
| 31 | 6.0 | Bright |
Hazard calendar for Yakushima
In July, Yakushima sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Yakushima sits in the Pacific typhoon belt; the season peaks July–October.
Is July a good time to visit Yakushima?
Our two travel scores rate July for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
July is a reasonable time to visit Yakushima for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Yakushima in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Yakushima sees daytime highs around 27°C and nights near 26°C. Pack light clothes. Worth having: rain gear, sun protection and a windbreaker. About 13 days see rain.
Sea temperature near Yakushima in July
The nearest coast averages about 28°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 29°C and coldest in February near 20°C.
It's comfortable for a long swim from Feb 25 to Feb 7 — about 11.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 21 | 20 | 20 | 21 | 23 | 25 | 28 | 29 | 28 | 26 | 24 | 22 |
| Comfort | Refreshing | Cool | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Warm | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 21 | Refreshing |
| Feb | 20 | Cool |
| Mar | 20 | Refreshing |
| Apr | 21 | Refreshing |
| May | 23 | Refreshing |
| Jun | 25 | Warm |
| Jul | 28 | Warm |
| Aug | 29 | Tropical |
| Sep | 28 | Warm |
| Oct | 26 | Warm |
| Nov | 24 | Warm |
| Dec | 22 | Refreshing |
UV index in Yakushima in July
Clear-sky midday UV in July peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Yakushima peaks around June 22 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 7 | 9 | 9 | 11 | 11 | 10 | 10 | 7 | 5 | 4 |
| Level | Moderate | High | Very high | Very high | Very high | Extreme | Extreme | Very high | Extreme | High | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | Very high |
| Apr | 9 | Very high |
| May | 9 | Very high |
| Jun | 11 | Extreme |
| Jul | 11 | Extreme |
| Aug | 10 | Very high |
| Sep | 10 | Extreme |
| Oct | 7 | High |
| Nov | 5 | High |
| Dec | 4 | Moderate |
Air quality in Yakushima in July
Average fine-particle pollution (PM2.5) through the year — so you can see where July falls, not just the annual average.
Air quality in Yakushima is worst in April — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 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) | 13 | 16 | 20 | 21 | 19 | 13 | 10 | 11 | 10 | 10 | 11 | 10 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 13 | Moderate |
| Feb | 16 | Moderate |
| Mar | 20 | Moderate |
| Apr | 21 | Moderate |
| May | 19 | Moderate |
| Jun | 13 | Moderate |
| Jul | 10 | Good |
| Aug | 11 | Good |
| Sep | 10 | Good |
| Oct | 10 | Good |
| Nov | 11 | Good |
| Dec | 10 | Good |
Where is Yakushima?
Yakushima sits at 30.4°N, 130.6°E, 0 m above sea level, in Japan. The nearest listed city is Nishinoomote, 51 km away.
Topography around Yakushima
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yakushima.
Within 3 km, the terrain around Yakushima has large variations in elevation — a maximum elevation change of 608 m around an average of 81 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,916 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,893 m.
The land around Yakushima is covered by trees (54%) and water (44%) within 3 km, water (67%) and trees (33%) within 16 km, and water (93%) 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 Yakushima (30.388°, 130.6492°, elevation 0 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).