Ōno weather in September
In September, Ōno sees average daytime highs of 21°C and overnight lows near 18°C, with 158 mm of rain across 12.8 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.
Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 23% of the time in September, and the air most often feels humid.
Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Ōno's 9th-clearest and 8th-windiest month. For the whole year in context, see Ōno's year-round climate.
- Daytime high
- 21°
- 3rd warmest
- Overnight low
- 18°
- 10th coldest
- Rainfall
- 158 mm
- 12.8 wet days
- Daylight
- 12 h 18 min
- 5:20 AM – 5:36 PM
- Cloud cover
- 68%
- 9th clearest
- Wind
- 13 km/h
- 8th windiest
- Solar energy
- 3.75 kWh/m²
- Travel score
- 5.9
- out of 10
Temperature in September
Highs ease over the month, from about 23°C in the first days to 20°C by the end.
A typical September day in Ōno reaches about 21°C in the afternoon and slips back to 18°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 25°C. Set against its neighbours, September runs about 2°C cooler than August and about 5°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) | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 |
| Avg low (°C) | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 23 | 20 |
| 2 | 23 | 20 |
| 3 | 23 | 19 |
| 4 | 23 | 19 |
| 5 | 23 | 19 |
| 6 | 23 | 19 |
| 7 | 23 | 19 |
| 8 | 23 | 19 |
| 9 | 22 | 19 |
| 10 | 22 | 19 |
| 11 | 22 | 18 |
| 12 | 22 | 18 |
| 13 | 22 | 18 |
| 14 | 22 | 18 |
| 15 | 22 | 18 |
| 16 | 22 | 18 |
| 17 | 21 | 17 |
| 18 | 21 | 17 |
| 19 | 21 | 17 |
| 20 | 21 | 17 |
| 21 | 21 | 17 |
| 22 | 21 | 16 |
| 23 | 20 | 16 |
| 24 | 20 | 16 |
| 25 | 20 | 16 |
| 26 | 20 | 16 |
| 27 | 20 | 15 |
| 28 | 20 | 15 |
| 29 | 19 | 15 |
| 30 | 19 | 15 |
How September really feels in Ōno
Once humidity and wind are folded in, September 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.
September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Ōno weather by month
How September compares with the rest of the year at a glance. September is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 2° / -2° | 60 | 9.7 | 8.8 | 9.5 | 0.0 |
| Feb | 3° / -3° | 57 | 8.7 | 7.8 | 10.4 | 0.0 |
| Mar | 6° / 0° | 80 | 10.9 | 6.3 | 11.7 | 0.4 |
| Apr | 10° / 5° | 87 | 11.5 | 1.9 | 13 | 2.3 |
| May | 14° / 10° | 100 | 11.5 | 0 | 14.2 | 4.1 |
| Jun | 18° / 14° | 107 | 11.5 | 0 | 14.8 | 5.2 |
| Jul | 22° / 18° | 146 | 14.8 | 0 | 14.6 | 5.7 |
| Aug | 24° / 20° | 152 | 14.2 | 0 | 13.6 | 6.2 |
| Sep | 21° / 18° | 158 | 12.8 | 0 | 12.3 | 5.9 |
| Oct | 17° / 12° | 126 | 10.2 | 0 | 10.9 | 5.3 |
| Nov | 11° / 6° | 63 | 9.8 | 0.9 | 9.8 | 2.7 |
| Dec | 5° / 1° | 63 | 10 | 5.8 | 9.2 | 0.2 |
Cloud cover in September
The sky is clear or mostly clear about 23% of the time in September.
Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 63%. 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 33 | 33 | 33 | 33 | 33 | 33 | 35 | 35 | 36 | 35 | 35 | 35 | 36 | 37 | 37 | 37 | 37 | 37 | 38 | 39 | 39 | 40 | 40 | 41 | 42 | 42 | 42 | 42 | 43 | 43 |
| Cloudier (%) | 67 | 67 | 67 | 67 | 67 | 67 | 65 | 65 | 64 | 65 | 65 | 65 | 64 | 63 | 63 | 63 | 63 | 63 | 62 | 61 | 61 | 60 | 60 | 59 | 58 | 58 | 58 | 58 | 57 | 57 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 33 | 67 |
| 2 | 33 | 67 |
| 3 | 33 | 67 |
| 4 | 33 | 67 |
| 5 | 33 | 67 |
| 6 | 33 | 67 |
| 7 | 35 | 65 |
| 8 | 35 | 65 |
| 9 | 36 | 64 |
| 10 | 35 | 65 |
| 11 | 35 | 65 |
| 12 | 35 | 65 |
| 13 | 36 | 64 |
| 14 | 37 | 63 |
| 15 | 37 | 63 |
| 16 | 37 | 63 |
| 17 | 37 | 63 |
| 18 | 37 | 63 |
| 19 | 38 | 62 |
| 20 | 39 | 61 |
| 21 | 39 | 61 |
| 22 | 40 | 60 |
| 23 | 40 | 60 |
| 24 | 41 | 59 |
| 25 | 42 | 58 |
| 26 | 42 | 58 |
| 27 | 42 | 58 |
| 28 | 42 | 58 |
| 29 | 43 | 57 |
| 30 | 43 | 57 |
Chance of precipitation in September
Ōno gets around 158 mm of rain over 12.8 wet days in September, the wettest month. 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 47% 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 (%) | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 46 | 45 | 44 | 44 | 43 | 42 | 41 | 41 | 40 | 40 | 40 | 39 | 39 | 39 | 38 |
| Rain chance (%) | |
|---|---|
| 1 | 47 |
| 2 | 47 |
| 3 | 47 |
| 4 | 47 |
| 5 | 47 |
| 6 | 47 |
| 7 | 47 |
| 8 | 47 |
| 9 | 47 |
| 10 | 47 |
| 11 | 47 |
| 12 | 47 |
| 13 | 47 |
| 14 | 47 |
| 15 | 46 |
| 16 | 46 |
| 17 | 45 |
| 18 | 44 |
| 19 | 44 |
| 20 | 43 |
| 21 | 42 |
| 22 | 41 |
| 23 | 41 |
| 24 | 40 |
| 25 | 40 |
| 26 | 40 |
| 27 | 39 |
| 28 | 39 |
| 29 | 39 |
| 30 | 38 |
Humidity in September
Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, September lands in the humid band about 28% of days. Sticky, muggy-or-worse air turns up on roughly 26% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 11 | 13 | 15 | 17 | 19 | 21 | 23 | 25 | 27 | 30 | 32 | 34 | 36 | 39 | 41 | 43 | 46 | 48 |
| Comfortable (%) | 13 | 14 | 15 | 15 | 16 | 17 | 18 | 20 | 21 | 22 | 23 | 25 | 26 | 27 | 28 | 29 | 30 | 32 | 33 | 33 | 34 | 35 | 35 | 36 | 36 | 36 | 36 | 36 | 35 | 34 |
| Humid (%) | 32 | 32 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 33 | 33 | 33 | 32 | 32 | 31 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 23 | 22 | 21 | 20 | 18 | 17 | 16 | 15 |
| Muggy (%) | 38 | 37 | 37 | 36 | 35 | 35 | 33 | 32 | 31 | 30 | 28 | 26 | 25 | 23 | 21 | 19 | 17 | 15 | 14 | 12 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 3 | 2 |
| Oppressive (%) | 15 | 14 | 13 | 12 | 12 | 11 | 10 | 9 | 9 | 8 | 7 | 7 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| Miserable (%) | 1 | 1 | 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 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 2 | 13 | 32 | 38 | 15 | 1 |
| 2 | 2 | 14 | 32 | 37 | 14 | 1 |
| 3 | 2 | 15 | 33 | 37 | 13 | 1 |
| 4 | 2 | 15 | 33 | 36 | 12 | 1 |
| 5 | 3 | 16 | 33 | 35 | 12 | 1 |
| 6 | 3 | 17 | 34 | 35 | 11 | 1 |
| 7 | 4 | 18 | 34 | 33 | 10 | 0 |
| 8 | 5 | 20 | 34 | 32 | 9 | 0 |
| 9 | 6 | 21 | 34 | 31 | 9 | 0 |
| 10 | 7 | 22 | 33 | 30 | 8 | 0 |
| 11 | 8 | 23 | 33 | 28 | 7 | 0 |
| 12 | 9 | 25 | 33 | 26 | 7 | 0 |
| 13 | 11 | 26 | 32 | 25 | 6 | 0 |
| 14 | 13 | 27 | 32 | 23 | 5 | 0 |
| 15 | 15 | 28 | 31 | 21 | 5 | 0 |
| 16 | 17 | 29 | 31 | 19 | 4 | 0 |
| 17 | 19 | 30 | 30 | 17 | 4 | 0 |
| 18 | 21 | 32 | 29 | 15 | 3 | 0 |
| 19 | 23 | 33 | 28 | 14 | 3 | 0 |
| 20 | 25 | 33 | 27 | 12 | 2 | 0 |
| 21 | 27 | 34 | 26 | 10 | 2 | 0 |
| 22 | 30 | 35 | 25 | 9 | 2 | 0 |
| 23 | 32 | 35 | 23 | 8 | 2 | 0 |
| 24 | 34 | 36 | 22 | 7 | 1 | 0 |
| 25 | 36 | 36 | 21 | 6 | 1 | 0 |
| 26 | 39 | 36 | 20 | 5 | 1 | 0 |
| 27 | 41 | 36 | 18 | 4 | 0 | 0 |
| 28 | 43 | 36 | 17 | 3 | 0 | 0 |
| 29 | 46 | 35 | 16 | 3 | 0 | 0 |
| 30 | 48 | 34 | 15 | 2 | 0 | 0 |
Wind in September
Winds average 13 km/h in September.
Across September, daily wind ranges from about 12 km/h on the calmest days to 14 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) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Feels | calm | calm | calm | calm | calm | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | calm |
| 2 | 12 | calm |
| 3 | 12 | calm |
| 4 | 12 | calm |
| 5 | 12 | calm |
| 6 | 12 | light breeze |
| 7 | 12 | light breeze |
| 8 | 12 | light breeze |
| 9 | 12 | light breeze |
| 10 | 12 | light breeze |
| 11 | 12 | light breeze |
| 12 | 12 | light breeze |
| 13 | 13 | light breeze |
| 14 | 13 | light breeze |
| 15 | 13 | light breeze |
| 16 | 13 | light breeze |
| 17 | 13 | light breeze |
| 18 | 13 | light breeze |
| 19 | 13 | light breeze |
| 20 | 13 | light breeze |
| 21 | 14 | light breeze |
| 22 | 14 | light breeze |
| 23 | 14 | light breeze |
| 24 | 14 | light breeze |
| 25 | 14 | light breeze |
| 26 | 14 | light breeze |
| 27 | 14 | light breeze |
| 28 | 14 | light breeze |
| 29 | 14 | light breeze |
| 30 | 14 | light breeze |
Sunrise & sunset in September
Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 78 minutes over September. Sunrise moves from 5:05 AM to 5:34 AM, and sunset from 6:01 PM to 5:12 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) | 12.9 | 12.9 | 12.8 | 12.8 | 12.8 | 12.7 | 12.7 | 12.6 | 12.6 | 12.5 | 12.5 | 12.4 | 12.4 | 12.4 | 12.3 | 12.3 | 12.2 | 12.2 | 12.1 | 12.1 | 12.0 | 12.0 | 11.9 | 11.9 | 11.9 | 11.8 | 11.8 | 11.7 | 11.7 | 11.6 |
| Sunrise (AM) | 5:05 | 5:06 | 5:07 | 5:08 | 5:09 | 5:10 | 5:11 | 5:12 | 5:13 | 5:14 | 5:15 | 5:16 | 5:17 | 5:18 | 5:19 | 5:20 | 5:21 | 5:22 | 5:23 | 5:24 | 5:25 | 5:26 | 5:27 | 5:28 | 5:29 | 5:30 | 5:31 | 5:32 | 5:33 | 5:34 |
| Sunset (PM) | 6:01 | 6:00 | 5:58 | 5:56 | 5:55 | 5:53 | 5:51 | 5:49 | 5:48 | 5:46 | 5:44 | 5:43 | 5:41 | 5:39 | 5:37 | 5:36 | 5:34 | 5:32 | 5:30 | 5:29 | 5:27 | 5:25 | 5:24 | 5:22 | 5:20 | 5:18 | 5:17 | 5:15 | 5:13 | 5:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 12.9 | 5:05 | 6:01 |
| 2 | 12.9 | 5:06 | 6:00 |
| 3 | 12.8 | 5:07 | 5:58 |
| 4 | 12.8 | 5:08 | 5:56 |
| 5 | 12.8 | 5:09 | 5:55 |
| 6 | 12.7 | 5:10 | 5:53 |
| 7 | 12.7 | 5:11 | 5:51 |
| 8 | 12.6 | 5:12 | 5:49 |
| 9 | 12.6 | 5:13 | 5:48 |
| 10 | 12.5 | 5:14 | 5:46 |
| 11 | 12.5 | 5:15 | 5:44 |
| 12 | 12.4 | 5:16 | 5:43 |
| 13 | 12.4 | 5:17 | 5:41 |
| 14 | 12.4 | 5:18 | 5:39 |
| 15 | 12.3 | 5:19 | 5:37 |
| 16 | 12.3 | 5:20 | 5:36 |
| 17 | 12.2 | 5:21 | 5:34 |
| 18 | 12.2 | 5:22 | 5:32 |
| 19 | 12.1 | 5:23 | 5:30 |
| 20 | 12.1 | 5:24 | 5:29 |
| 21 | 12.0 | 5:25 | 5:27 |
| 22 | 12.0 | 5:26 | 5:25 |
| 23 | 11.9 | 5:27 | 5:24 |
| 24 | 11.9 | 5:28 | 5:22 |
| 25 | 11.9 | 5:29 | 5:20 |
| 26 | 11.8 | 5:30 | 5:18 |
| 27 | 11.8 | 5:31 | 5:17 |
| 28 | 11.7 | 5:32 | 5:15 |
| 29 | 11.7 | 5:33 | 5:13 |
| 30 | 11.6 | 5:34 | 5:12 |
Solar energy in September
Average shortwave solar energy reaching the ground each day in September, about 3.75 kWh/m².
For context, solar energy here swings from a low near 1.87 kWh/m² to a high of 5.48 kWh/m² in May across the year — September's 3.75 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) | 4.1 | 4.0 | 4.0 | 4.0 | 4.0 | 3.9 | 3.9 | 3.9 | 3.9 | 3.8 | 3.8 | 3.8 | 3.8 | 3.7 | 3.7 | 3.7 | 3.7 | 3.7 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.5 | 3.5 | 3.4 | 3.4 |
| Level | Bright | Bright | Bright | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.0 | Bright |
| 3 | 4.0 | Bright |
| 4 | 4.0 | Moderate |
| 5 | 4.0 | Moderate |
| 6 | 3.9 | Moderate |
| 7 | 3.9 | Moderate |
| 8 | 3.9 | Moderate |
| 9 | 3.9 | Moderate |
| 10 | 3.8 | Moderate |
| 11 | 3.8 | Moderate |
| 12 | 3.8 | Moderate |
| 13 | 3.8 | Moderate |
| 14 | 3.7 | Moderate |
| 15 | 3.7 | Moderate |
| 16 | 3.7 | Moderate |
| 17 | 3.7 | Moderate |
| 18 | 3.7 | Moderate |
| 19 | 3.6 | Moderate |
| 20 | 3.6 | Moderate |
| 21 | 3.6 | Moderate |
| 22 | 3.6 | Moderate |
| 23 | 3.6 | Moderate |
| 24 | 3.6 | Moderate |
| 25 | 3.5 | Moderate |
| 26 | 3.5 | Moderate |
| 27 | 3.5 | Moderate |
| 28 | 3.5 | Moderate |
| 29 | 3.4 | Moderate |
| 30 | 3.4 | Moderate |
Hazard calendar for Ōno
In September, Ōno sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ōno sits in the Pacific typhoon belt; the season peaks July–October.
Is September a good time to visit Ōno?
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 Ōno for sightseeing.
What to pack for Ōno in September
From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In September, Ōno sees daytime highs around 21°C and nights near 18°C. Worth packing: rain gear. About 13 days see rain.
Sea temperature near Ōno in September
The nearest coast averages about 21°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 23 km away) is warmest in August at about 21°C and coldest in March near 6°C.
It's comfortable for a long swim from Aug 8 to Sep 25 — about 1.6 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 10 | 7 | 6 | 8 | 10 | 14 | 18 | 21 | 21 | 18 | 15 | 12 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 10 | Bracing |
| Feb | 7 | Bracing |
| Mar | 6 | Bracing |
| Apr | 8 | Bracing |
| May | 10 | Bracing |
| Jun | 14 | Bracing |
| Jul | 18 | Cool |
| Aug | 21 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 18 | Cool |
| Nov | 15 | Cool |
| Dec | 12 | Bracing |
UV index in Ōno in September
Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Ōno peaks around August 19 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 3 | 6 | 8 | 7 | 5 | 9 | 7 | 5 | 2 | 1 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Moderate | Very high | High | Moderate | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 3 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 7 | Very high |
| Jul | 5 | Moderate |
| Aug | 9 | Very high |
| Sep | 7 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Moderate |
| Dec | 1 | Low |
Air quality in Ōno 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 Ōno is worst in March — around 23 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (August, 12 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) | 15 | 17 | 23 | 23 | 21 | 15 | 12 | 12 | 14 | 14 | 13 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 17 | Moderate |
| Mar | 23 | Moderate |
| Apr | 23 | Moderate |
| May | 21 | Moderate |
| Jun | 15 | Moderate |
| Jul | 12 | Moderate |
| Aug | 12 | Moderate |
| Sep | 14 | Moderate |
| Oct | 14 | Moderate |
| Nov | 13 | Moderate |
| Dec | 13 | Moderate |
Where is Ōno?
Ōno sits at 40.3°N, 141.6°E, 211 m above sea level, in Japan. The nearest listed city is Kuji, 16 km away.
Topography around Ōno
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ōno.
Within 3 km, the terrain around Ōno has only modest variations in elevation — a maximum elevation change of 240 m around an average of 255 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 736 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,128 m.
The land around Ōno is covered by trees (84%) within 3 km, trees (86%) within 16 km, and trees (63%) and water (29%) 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 Ōno (40.2853°, 141.6287°, elevation 211 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).