Nakagusuku weather in September
In September, Nakagusuku sees average daytime highs of 28°C and overnight lows near 27°C, with 199 mm of rain across 14.2 wet days and about 12.2 hours of daylight. It is the 3rd-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 43% of the time in September, and the air most often feels miserable.
Daylight stretches from about 12 h 30 min at the start of September to 11 h 48 min by month's end. Set against the rest of the year, September is Nakagusuku's 2nd-clearest and 7th-windiest month. For the whole year in context, see Nakagusuku's year-round climate.
- Daytime high
- 28°
- 3rd warmest
- Overnight low
- 27°
- 10th coldest
- Rainfall
- 199 mm
- 14.2 wet days
- Daylight
- 12 h 12 min
- 6:19 AM – 6:28 PM
- Cloud cover
- 54%
- 2nd clearest
- Wind
- 24 km/h
- 7th windiest
- Solar energy
- 5.22 kWh/m²
- Travel score
- 5.7
- out of 10
Temperature in September
Day-to-day highs hold fairly steady near 28°C through the month.
A typical September day in Nakagusuku reaches about 28°C in the afternoon and slips back to 27°C overnight — a 1°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Avg low (°C) | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 28 | 27 |
| 2 | 28 | 27 |
| 3 | 28 | 27 |
| 4 | 28 | 27 |
| 5 | 28 | 27 |
| 6 | 28 | 27 |
| 7 | 28 | 27 |
| 8 | 28 | 27 |
| 9 | 28 | 27 |
| 10 | 28 | 27 |
| 11 | 28 | 27 |
| 12 | 28 | 27 |
| 13 | 28 | 27 |
| 14 | 28 | 27 |
| 15 | 28 | 27 |
| 16 | 28 | 27 |
| 17 | 28 | 27 |
| 18 | 28 | 27 |
| 19 | 28 | 26 |
| 20 | 28 | 26 |
| 21 | 28 | 26 |
| 22 | 28 | 26 |
| 23 | 27 | 26 |
| 24 | 27 | 26 |
| 25 | 27 | 26 |
| 26 | 27 | 26 |
| 27 | 27 | 26 |
| 28 | 27 | 26 |
| 29 | 27 | 26 |
| 30 | 27 | 26 |
How September really feels in Nakagusuku
Once humidity and wind are folded in, September averages 13 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 September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Nakagusuku weather by month
How September compares with the rest of the year at a glance. September is the 3rd-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 19° / 17° | 103 | 11.7 | 10.5 | 5.7 |
| Feb | 19° / 17° | 96 | 11.4 | 11.1 | 5.6 |
| Mar | 20° / 18° | 128 | 12.7 | 11.8 | 5.9 |
| Apr | 22° / 20° | 150 | 12.7 | 12.6 | 6.1 |
| May | 24° / 23° | 207 | 13.8 | 13.3 | 6.1 |
| Jun | 27° / 26° | 218 | 15.8 | 13.6 | 5.4 |
| Jul | 29° / 27° | 126 | 11.4 | 13.5 | 5.5 |
| Aug | 29° / 27° | 178 | 14.8 | 12.9 | 5.1 |
| Sep | 28° / 27° | 199 | 14.2 | 12.2 | 5.7 |
| Oct | 26° / 25° | 141 | 11.6 | 11.4 | 6.5 |
| Nov | 24° / 22° | 101 | 10.6 | 10.7 | 6.7 |
| Dec | 21° / 19° | 113 | 11.2 | 10.4 | 6.1 |
Cloud cover in September
The sky is clear or mostly clear about 43% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 44%.
| 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 55 | 55 | 55 | 55 | 55 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 57 | 58 | 58 | 57 | 57 | 57 | 56 | 56 | 56 | 56 | 56 | 57 | 57 | 57 | 58 | 57 | 58 | 58 |
| Cloudier (%) | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 42 | 43 | 42 | 42 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 55 | 45 |
| 2 | 55 | 45 |
| 3 | 55 | 45 |
| 4 | 55 | 45 |
| 5 | 55 | 45 |
| 6 | 56 | 44 |
| 7 | 56 | 44 |
| 8 | 56 | 44 |
| 9 | 56 | 44 |
| 10 | 57 | 43 |
| 11 | 57 | 43 |
| 12 | 57 | 43 |
| 13 | 57 | 43 |
| 14 | 58 | 42 |
| 15 | 58 | 42 |
| 16 | 57 | 43 |
| 17 | 57 | 43 |
| 18 | 57 | 43 |
| 19 | 56 | 44 |
| 20 | 56 | 44 |
| 21 | 56 | 44 |
| 22 | 56 | 44 |
| 23 | 56 | 44 |
| 24 | 57 | 43 |
| 25 | 57 | 43 |
| 26 | 57 | 43 |
| 27 | 58 | 42 |
| 28 | 57 | 43 |
| 29 | 58 | 42 |
| 30 | 58 | 42 |
Chance of precipitation in September
Nakagusuku gets around 199 mm of rain over 14.2 wet days in September. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 46% and peaks near 51% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 51 | 51 | 51 | 51 | 51 | 50 | 50 | 49 | 48 | 47 | 47 | 46 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 43 | 43 | 43 | 43 | 42 | 42 | 42 | 42 | 41 |
| Rain chance (%) | |
|---|---|
| 1 | 51 |
| 2 | 51 |
| 3 | 51 |
| 4 | 51 |
| 5 | 51 |
| 6 | 50 |
| 7 | 50 |
| 8 | 49 |
| 9 | 48 |
| 10 | 47 |
| 11 | 47 |
| 12 | 46 |
| 13 | 45 |
| 14 | 45 |
| 15 | 44 |
| 16 | 44 |
| 17 | 44 |
| 18 | 44 |
| 19 | 44 |
| 20 | 44 |
| 21 | 44 |
| 22 | 43 |
| 23 | 43 |
| 24 | 43 |
| 25 | 43 |
| 26 | 42 |
| 27 | 42 |
| 28 | 42 |
| 29 | 42 |
| 30 | 41 |
Humidity in September
Most of September feels miserable — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the miserable band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 96% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Comfortable (%) | 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 | 1 | 1 | 1 | 1 | 1 |
| Humid (%) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 |
| Muggy (%) | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 5 | 6 | 6 | 7 | 8 | 8 | 9 | 10 | 10 | 11 | 12 | 12 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 16 | 17 |
| Oppressive (%) | 20 | 21 | 22 | 22 | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 37 | 38 | 38 | 39 | 40 | 41 | 41 | 41 |
| Miserable (%) | 77 | 75 | 74 | 74 | 73 | 73 | 71 | 71 | 71 | 68 | 67 | 66 | 64 | 62 | 61 | 58 | 56 | 54 | 52 | 50 | 47 | 45 | 44 | 42 | 40 | 38 | 37 | 35 | 34 | 33 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 0 | 1 | 2 | 20 | 77 |
| 2 | 0 | 1 | 3 | 21 | 75 |
| 3 | 0 | 1 | 3 | 22 | 74 |
| 4 | 0 | 1 | 3 | 22 | 74 |
| 5 | 0 | 1 | 3 | 23 | 73 |
| 6 | 0 | 1 | 3 | 23 | 73 |
| 7 | 0 | 1 | 4 | 24 | 71 |
| 8 | 0 | 1 | 4 | 24 | 71 |
| 9 | 0 | 1 | 4 | 24 | 71 |
| 10 | 0 | 2 | 5 | 25 | 68 |
| 11 | 0 | 2 | 6 | 25 | 67 |
| 12 | 0 | 2 | 6 | 26 | 66 |
| 13 | 0 | 3 | 7 | 26 | 64 |
| 14 | 0 | 3 | 8 | 27 | 62 |
| 15 | 0 | 3 | 8 | 28 | 61 |
| 16 | 0 | 4 | 9 | 29 | 58 |
| 17 | 0 | 4 | 10 | 30 | 56 |
| 18 | 0 | 5 | 10 | 31 | 54 |
| 19 | 0 | 5 | 11 | 32 | 52 |
| 20 | 0 | 5 | 12 | 33 | 50 |
| 21 | 0 | 6 | 12 | 34 | 47 |
| 22 | 0 | 6 | 13 | 35 | 45 |
| 23 | 0 | 6 | 13 | 37 | 44 |
| 24 | 0 | 7 | 14 | 38 | 42 |
| 25 | 0 | 7 | 14 | 38 | 40 |
| 26 | 1 | 7 | 15 | 39 | 38 |
| 27 | 1 | 8 | 15 | 40 | 37 |
| 28 | 1 | 8 | 15 | 41 | 35 |
| 29 | 1 | 8 | 16 | 41 | 34 |
| 30 | 1 | 8 | 17 | 41 | 33 |
Wind in September
Winds average 24 km/h in September.
Across September, daily wind ranges from about 22 km/h on the calmest days to 26 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 |
| 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 |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 22 | breezy |
| 2 | 22 | breezy |
| 3 | 22 | breezy |
| 4 | 23 | breezy |
| 5 | 23 | breezy |
| 6 | 23 | breezy |
| 7 | 23 | breezy |
| 8 | 23 | breezy |
| 9 | 23 | breezy |
| 10 | 23 | breezy |
| 11 | 23 | breezy |
| 12 | 23 | breezy |
| 13 | 24 | breezy |
| 14 | 24 | breezy |
| 15 | 24 | breezy |
| 16 | 24 | breezy |
| 17 | 24 | breezy |
| 18 | 24 | breezy |
| 19 | 25 | breezy |
| 20 | 25 | breezy |
| 21 | 25 | breezy |
| 22 | 25 | breezy |
| 23 | 25 | breezy |
| 24 | 25 | breezy |
| 25 | 25 | breezy |
| 26 | 25 | breezy |
| 27 | 25 | breezy |
| 28 | 26 | breezy |
| 29 | 26 | breezy |
| 30 | 26 | breezy |
Sunrise & sunset in September
Daylight runs from about 12 h 30 min at the start of September to 11 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 42 minutes over September. Sunrise moves from 6:12 AM to 6:25 AM, and sunset from 6:45 PM to 6:12 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.5 | 12.5 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.3 | 12.3 | 12.2 | 12.2 | 12.2 | 12.2 | 12.1 | 12.1 | 12.1 | 12.0 | 12.0 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.8 |
| Sunrise (AM) | 6:12 | 6:13 | 6:13 | 6:14 | 6:14 | 6:14 | 6:15 | 6:15 | 6:16 | 6:16 | 6:17 | 6:17 | 6:17 | 6:18 | 6:18 | 6:19 | 6:19 | 6:19 | 6:20 | 6:20 | 6:21 | 6:21 | 6:22 | 6:22 | 6:22 | 6:23 | 6:23 | 6:24 | 6:24 | 6:25 |
| Sunset (PM) | 6:45 | 6:44 | 6:43 | 6:42 | 6:40 | 6:39 | 6:38 | 6:37 | 6:36 | 6:35 | 6:34 | 6:32 | 6:31 | 6:30 | 6:29 | 6:28 | 6:27 | 6:25 | 6:24 | 6:23 | 6:22 | 6:21 | 6:20 | 6:18 | 6:17 | 6:16 | 6:15 | 6:14 | 6:13 | 6:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.5 | 6:12 | 6:45 |
| 2 | 12.5 | 6:13 | 6:44 |
| 3 | 12.5 | 6:13 | 6:43 |
| 4 | 12.5 | 6:14 | 6:42 |
| 5 | 12.4 | 6:14 | 6:40 |
| 6 | 12.4 | 6:14 | 6:39 |
| 7 | 12.4 | 6:15 | 6:38 |
| 8 | 12.4 | 6:15 | 6:37 |
| 9 | 12.3 | 6:16 | 6:36 |
| 10 | 12.3 | 6:16 | 6:35 |
| 11 | 12.3 | 6:17 | 6:34 |
| 12 | 12.3 | 6:17 | 6:32 |
| 13 | 12.2 | 6:17 | 6:31 |
| 14 | 12.2 | 6:18 | 6:30 |
| 15 | 12.2 | 6:18 | 6:29 |
| 16 | 12.2 | 6:19 | 6:28 |
| 17 | 12.1 | 6:19 | 6:27 |
| 18 | 12.1 | 6:19 | 6:25 |
| 19 | 12.1 | 6:20 | 6:24 |
| 20 | 12.0 | 6:20 | 6:23 |
| 21 | 12.0 | 6:21 | 6:22 |
| 22 | 12.0 | 6:21 | 6:21 |
| 23 | 12.0 | 6:22 | 6:20 |
| 24 | 11.9 | 6:22 | 6:18 |
| 25 | 11.9 | 6:22 | 6:17 |
| 26 | 11.9 | 6:23 | 6:16 |
| 27 | 11.9 | 6:23 | 6:15 |
| 28 | 11.8 | 6:24 | 6:14 |
| 29 | 11.8 | 6:24 | 6:13 |
| 30 | 11.8 | 6:25 | 6:12 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 5.22 kWh/m².
For context, solar energy here swings from a low near 2.39 kWh/m² to a high of 6.42 kWh/m² in July across the year — September's 5.22 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.7 | 5.6 | 5.6 | 5.6 | 5.5 | 5.5 | 5.5 | 5.5 | 5.4 | 5.4 | 5.4 | 5.3 | 5.3 | 5.3 | 5.3 | 5.2 | 5.2 | 5.2 | 5.2 | 5.1 | 5.1 | 5.0 | 5.0 | 5.0 | 5.0 | 4.9 | 4.9 | 4.9 | 4.8 | 4.8 |
| 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 |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.7 | Bright |
| 2 | 5.6 | Bright |
| 3 | 5.6 | Bright |
| 4 | 5.6 | Bright |
| 5 | 5.5 | Bright |
| 6 | 5.5 | Bright |
| 7 | 5.5 | Bright |
| 8 | 5.5 | Bright |
| 9 | 5.4 | Bright |
| 10 | 5.4 | Bright |
| 11 | 5.4 | Bright |
| 12 | 5.3 | Bright |
| 13 | 5.3 | Bright |
| 14 | 5.3 | Bright |
| 15 | 5.3 | Bright |
| 16 | 5.2 | Bright |
| 17 | 5.2 | Bright |
| 18 | 5.2 | Bright |
| 19 | 5.2 | Bright |
| 20 | 5.1 | Bright |
| 21 | 5.1 | Bright |
| 22 | 5.0 | Bright |
| 23 | 5.0 | Bright |
| 24 | 5.0 | Bright |
| 25 | 5.0 | Bright |
| 26 | 4.9 | Bright |
| 27 | 4.9 | Bright |
| 28 | 4.9 | Bright |
| 29 | 4.8 | Bright |
| 30 | 4.8 | Bright |
Hazard calendar for Nakagusuku
In September, Nakagusuku sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Nakagusuku sits in the Pacific typhoon belt; the season peaks July–October.
Is September a good time to visit Nakagusuku?
Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
September is a reasonable time to visit Nakagusuku for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Nakagusuku in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Nakagusuku sees daytime highs around 28°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection and a windbreaker. About 14 days see rain.
Sea temperature near Nakagusuku in September
The nearest coast averages about 28°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 17 km away) is warmest in August at about 29°C and coldest in February near 22°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 22 | 22 | 22 | 23 | 25 | 27 | 29 | 29 | 28 | 27 | 25 | 24 |
| Comfort | Refreshing | Refreshing | Refreshing | Refreshing | Warm | Warm | Tropical | Tropical | Tropical | Warm | Warm | Refreshing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 22 | Refreshing |
| Feb | 22 | Refreshing |
| Mar | 22 | Refreshing |
| Apr | 23 | Refreshing |
| May | 25 | Warm |
| Jun | 27 | Warm |
| Jul | 29 | Tropical |
| Aug | 29 | Tropical |
| Sep | 28 | Tropical |
| Oct | 27 | Warm |
| Nov | 25 | Warm |
| Dec | 24 | Refreshing |
UV index in Nakagusuku in September
Clear-sky midday UV in September 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 Nakagusuku peaks around July 11 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 5 (high).
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) | 5 | 7 | 9 | 8 | 10 | 11 | 12 | 11 | 11 | 8 | 7 | 5 |
| Level | High | Very high | Very high | Very high | Very high | Extreme | Extreme | Extreme | Extreme | Very high | High | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 5 | High |
| Feb | 7 | Very high |
| Mar | 9 | Very high |
| Apr | 8 | Very high |
| May | 10 | Very high |
| Jun | 11 | Extreme |
| Jul | 12 | Extreme |
| Aug | 11 | Extreme |
| Sep | 11 | Extreme |
| Oct | 8 | Very high |
| Nov | 7 | High |
| Dec | 5 | Moderate |
Air quality in Nakagusuku in September
Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.
Air quality in Nakagusuku is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (July, 8 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 | 14 | 17 | 16 | 13 | 9 | 8 | 10 | 9 | 9 | 10 | 10 |
| Level | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 14 | Moderate |
| Mar | 17 | Moderate |
| Apr | 16 | Moderate |
| May | 13 | Moderate |
| Jun | 9 | Good |
| Jul | 8 | Good |
| Aug | 10 | Good |
| Sep | 9 | Good |
| Oct | 9 | Good |
| Nov | 10 | Good |
| Dec | 10 | Good |
Where is Nakagusuku?
Nakagusuku sits at 26.3°N, 127.8°E, 9 m above sea level, in Japan. The nearest listed city is Ginowan, 3.0 km away.
Topography around Nakagusuku
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nakagusuku.
Within 3 km, the terrain around Nakagusuku has only modest variations in elevation — a maximum elevation change of 166 m around an average of 46 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 191 m; within 80 km, significant variations in elevation — a maximum elevation change of 492 m.
The land around Nakagusuku is covered by artificial surfaces (35%), water (32%) and trees (27%) within 3 km, water (55%) and artificial surfaces (24%) within 16 km, and water (91%) 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 Nakagusuku (26.25°, 127.7833°, elevation 9 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).