Ōiso weather in July
In July, Ōiso sees average daytime highs of 25°C and overnight lows near 22°C, with 200 mm of rain across 14.7 wet days and about 14.1 hours of daylight. It is the 2nd-warmest and 4th-wettest month of the year here.
Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 19% of the time in July, and the air most often feels oppressive.
Daylight stretches from about 14 h 24 min at the start of July to 13 h 48 min by month's end. Set against the rest of the year, July is Ōiso's 11th-clearest and 10th-windiest month. For the whole year in context, see Ōiso's year-round climate.
- Daytime high
- 25°
- 2nd warmest
- Overnight low
- 22°
- 11th coldest
- Rainfall
- 200 mm
- 14.7 wet days
- Daylight
- 14 h 12 min
- 4:43 AM – 6:53 PM
- Cloud cover
- 73%
- 11th clearest
- Wind
- 12 km/h
- 10th windiest
- Solar energy
- 4.85 kWh/m²
- Travel score
- 5.8
- out of 10
Ōiso is town in Naka District, Kanagawa Prefecture, Japan.
- Density
- 1,897/km²
- people per km²
- Founded
- 1889
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Highs climb over the month, from about 24°C in the first days to 27°C by the end.
A typical July day in Ōiso reaches about 25°C in the afternoon and slips back to 22°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 28°C. Set against its neighbours, July runs about 3°C warmer than June and about 1°C cooler than 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) | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 |
| Avg low (°C) | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 21 |
| 2 | 24 | 21 |
| 3 | 24 | 21 |
| 4 | 24 | 21 |
| 5 | 24 | 21 |
| 6 | 24 | 22 |
| 7 | 25 | 22 |
| 8 | 25 | 22 |
| 9 | 25 | 22 |
| 10 | 25 | 22 |
| 11 | 25 | 22 |
| 12 | 25 | 22 |
| 13 | 25 | 22 |
| 14 | 25 | 22 |
| 15 | 25 | 22 |
| 16 | 25 | 23 |
| 17 | 26 | 23 |
| 18 | 26 | 23 |
| 19 | 26 | 23 |
| 20 | 26 | 23 |
| 21 | 26 | 23 |
| 22 | 26 | 23 |
| 23 | 26 | 23 |
| 24 | 26 | 23 |
| 25 | 26 | 23 |
| 26 | 26 | 23 |
| 27 | 26 | 23 |
| 28 | 26 | 24 |
| 29 | 27 | 24 |
| 30 | 27 | 24 |
| 31 | 27 | 24 |
Ōiso weather by month
How July compares with the rest of the year at a glance. July is the 2nd-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 | 9° / 4° | 98 | 10 | 2.3 | 9.9 | 1.7 |
| Feb | 9° / 4° | 107 | 11.3 | 2.7 | 10.7 | 1.7 |
| Mar | 12° / 7° | 186 | 16.3 | 1.6 | 11.7 | 2.6 |
| Apr | 15° / 11° | 176 | 14.4 | 0.3 | 12.9 | 4.2 |
| May | 19° / 15° | 181 | 13.6 | 0 | 13.8 | 5.5 |
| Jun | 22° / 19° | 231 | 15.9 | 0 | 14.3 | 5.3 |
| Jul | 25° / 22° | 200 | 14.7 | 0 | 14.1 | 5.8 |
| Aug | 27° / 24° | 154 | 13.5 | 0 | 13.3 | 6.0 |
| Sep | 24° / 21° | 241 | 15.5 | 0 | 12.2 | 5.8 |
| Oct | 20° / 17° | 267 | 15.5 | 0 | 11.1 | 5.5 |
| Nov | 16° / 12° | 141 | 13.1 | 0 | 10.1 | 4.5 |
| Dec | 11° / 7° | 94 | 10.9 | 0.3 | 9.7 | 2.8 |
Cloud cover in July
The sky is clear or mostly clear about 19% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 9% of July, with mostly cloudy or overcast conditions the remaining 72%. 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 (%) | 20 | 20 | 22 | 21 | 22 | 23 | 23 | 23 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 26 | 26 | 28 | 29 | 29 | 30 | 30 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 41 |
| Cloudier (%) | 80 | 80 | 78 | 79 | 78 | 77 | 77 | 77 | 75 | 75 | 75 | 75 | 76 | 75 | 74 | 74 | 74 | 72 | 71 | 71 | 70 | 70 | 68 | 67 | 66 | 65 | 64 | 63 | 62 | 61 | 59 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 20 | 80 |
| 2 | 20 | 80 |
| 3 | 22 | 78 |
| 4 | 21 | 79 |
| 5 | 22 | 78 |
| 6 | 23 | 77 |
| 7 | 23 | 77 |
| 8 | 23 | 77 |
| 9 | 25 | 75 |
| 10 | 25 | 75 |
| 11 | 25 | 75 |
| 12 | 25 | 75 |
| 13 | 24 | 76 |
| 14 | 25 | 75 |
| 15 | 26 | 74 |
| 16 | 26 | 74 |
| 17 | 26 | 74 |
| 18 | 28 | 72 |
| 19 | 29 | 71 |
| 20 | 29 | 71 |
| 21 | 30 | 70 |
| 22 | 30 | 70 |
| 23 | 32 | 68 |
| 24 | 33 | 67 |
| 25 | 34 | 66 |
| 26 | 35 | 65 |
| 27 | 36 | 64 |
| 28 | 37 | 63 |
| 29 | 38 | 62 |
| 30 | 39 | 61 |
| 31 | 41 | 59 |
Chance of precipitation in July
Ōiso gets around 200 mm of rain over 14.7 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 47% and peaks near 56% 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 (%) | 56 | 55 | 54 | 54 | 53 | 53 | 52 | 52 | 51 | 50 | 50 | 49 | 48 | 47 | 47 | 46 | 46 | 45 | 45 | 45 | 44 | 44 | 43 | 43 | 43 | 42 | 42 | 42 | 41 | 41 | 41 |
| Rain chance (%) | |
|---|---|
| 1 | 56 |
| 2 | 55 |
| 3 | 54 |
| 4 | 54 |
| 5 | 53 |
| 6 | 53 |
| 7 | 52 |
| 8 | 52 |
| 9 | 51 |
| 10 | 50 |
| 11 | 50 |
| 12 | 49 |
| 13 | 48 |
| 14 | 47 |
| 15 | 47 |
| 16 | 46 |
| 17 | 46 |
| 18 | 45 |
| 19 | 45 |
| 20 | 45 |
| 21 | 44 |
| 22 | 44 |
| 23 | 43 |
| 24 | 43 |
| 25 | 43 |
| 26 | 42 |
| 27 | 42 |
| 28 | 42 |
| 29 | 41 |
| 30 | 41 |
| 31 | 41 |
Humidity in July
Most of July feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the oppressive band about 58% 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 (%) | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Humid (%) | 13 | 13 | 12 | 11 | 11 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 5 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Muggy (%) | 49 | 47 | 46 | 44 | 42 | 40 | 38 | 36 | 35 | 33 | 32 | 30 | 29 | 28 | 26 | 25 | 24 | 22 | 21 | 20 | 19 | 18 | 17 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 |
| Oppressive (%) | 34 | 37 | 40 | 43 | 45 | 48 | 51 | 53 | 55 | 56 | 58 | 59 | 60 | 61 | 64 | 64 | 64 | 65 | 66 | 66 | 66 | 66 | 66 | 65 | 65 | 64 | 64 | 63 | 63 | 62 | 62 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 3 | 3 | 4 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 14 | 15 | 17 | 18 | 20 | 21 | 23 | 24 |
| Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|
| 1 | 3 | 13 | 49 | 34 | 0 |
| 2 | 3 | 13 | 47 | 37 | 0 |
| 3 | 3 | 12 | 46 | 40 | 0 |
| 4 | 2 | 11 | 44 | 43 | 0 |
| 5 | 2 | 11 | 42 | 45 | 0 |
| 6 | 1 | 10 | 40 | 48 | 1 |
| 7 | 1 | 9 | 38 | 51 | 1 |
| 8 | 1 | 9 | 36 | 53 | 1 |
| 9 | 1 | 8 | 35 | 55 | 1 |
| 10 | 1 | 8 | 33 | 56 | 2 |
| 11 | 1 | 7 | 32 | 58 | 2 |
| 12 | 1 | 7 | 30 | 59 | 3 |
| 13 | 1 | 7 | 29 | 60 | 3 |
| 14 | 0 | 7 | 28 | 61 | 4 |
| 15 | 0 | 6 | 26 | 64 | 4 |
| 16 | 0 | 6 | 25 | 64 | 5 |
| 17 | 0 | 6 | 24 | 64 | 6 |
| 18 | 0 | 6 | 22 | 65 | 7 |
| 19 | 0 | 5 | 21 | 66 | 8 |
| 20 | 0 | 5 | 20 | 66 | 9 |
| 21 | 0 | 5 | 19 | 66 | 10 |
| 22 | 0 | 5 | 18 | 66 | 11 |
| 23 | 0 | 5 | 17 | 66 | 12 |
| 24 | 0 | 4 | 17 | 65 | 14 |
| 25 | 0 | 4 | 16 | 65 | 15 |
| 26 | 0 | 4 | 15 | 64 | 17 |
| 27 | 0 | 4 | 14 | 64 | 18 |
| 28 | 0 | 4 | 13 | 63 | 20 |
| 29 | 0 | 4 | 12 | 63 | 21 |
| 30 | 0 | 4 | 11 | 62 | 23 |
| 31 | 0 | 4 | 10 | 62 | 24 |
Wind in July
Winds average 12 km/h in July.
Across July, daily wind ranges from about 12 km/h on the calmest days to 13 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) | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
| Feels | 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 | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | light breeze |
| 2 | 12 | light breeze |
| 3 | 13 | light breeze |
| 4 | 13 | light breeze |
| 5 | 13 | light breeze |
| 6 | 13 | light breeze |
| 7 | 13 | light breeze |
| 8 | 13 | light breeze |
| 9 | 13 | light breeze |
| 10 | 13 | light breeze |
| 11 | 13 | light breeze |
| 12 | 13 | light breeze |
| 13 | 13 | light breeze |
| 14 | 12 | light breeze |
| 15 | 12 | light breeze |
| 16 | 12 | light breeze |
| 17 | 12 | light breeze |
| 18 | 12 | light breeze |
| 19 | 12 | light breeze |
| 20 | 12 | light breeze |
| 21 | 12 | light breeze |
| 22 | 12 | light breeze |
| 23 | 12 | light breeze |
| 24 | 12 | light breeze |
| 25 | 12 | light breeze |
| 26 | 12 | calm |
| 27 | 12 | calm |
| 28 | 12 | calm |
| 29 | 12 | calm |
| 30 | 12 | calm |
| 31 | 12 | calm |
Sunrise & sunset in July
Daylight runs from about 14 h 24 min at the start of July to 13 h 48 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 36 minutes over July. Sunrise moves from 4:35 AM to 4:54 AM, and sunset from 6:57 PM to 6:44 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) | 14.4 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.3 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.9 | 13.8 |
| Sunrise (AM) | 4:35 | 4:36 | 4:36 | 4:37 | 4:37 | 4:38 | 4:38 | 4:39 | 4:39 | 4:40 | 4:40 | 4:41 | 4:41 | 4:42 | 4:43 | 4:43 | 4:44 | 4:45 | 4:45 | 4:46 | 4:47 | 4:47 | 4:48 | 4:49 | 4:50 | 4:50 | 4:51 | 4:52 | 4:53 | 4:53 | 4:54 |
| Sunset (PM) | 6:57 | 6:57 | 6:57 | 6:57 | 6:56 | 6:56 | 6:56 | 6:56 | 6:56 | 6:55 | 6:55 | 6:55 | 6:55 | 6:54 | 6:54 | 6:53 | 6:53 | 6:52 | 6:52 | 6:51 | 6:51 | 6:50 | 6:50 | 6:49 | 6:48 | 6:48 | 6:47 | 6:46 | 6:45 | 6:44 | 6:44 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.4 | 4:35 | 6:57 |
| 2 | 14.3 | 4:36 | 6:57 |
| 3 | 14.3 | 4:36 | 6:57 |
| 4 | 14.3 | 4:37 | 6:57 |
| 5 | 14.3 | 4:37 | 6:56 |
| 6 | 14.3 | 4:38 | 6:56 |
| 7 | 14.3 | 4:38 | 6:56 |
| 8 | 14.3 | 4:39 | 6:56 |
| 9 | 14.3 | 4:39 | 6:56 |
| 10 | 14.3 | 4:40 | 6:55 |
| 11 | 14.2 | 4:40 | 6:55 |
| 12 | 14.2 | 4:41 | 6:55 |
| 13 | 14.2 | 4:41 | 6:55 |
| 14 | 14.2 | 4:42 | 6:54 |
| 15 | 14.2 | 4:43 | 6:54 |
| 16 | 14.2 | 4:43 | 6:53 |
| 17 | 14.1 | 4:44 | 6:53 |
| 18 | 14.1 | 4:45 | 6:52 |
| 19 | 14.1 | 4:45 | 6:52 |
| 20 | 14.1 | 4:46 | 6:51 |
| 21 | 14.1 | 4:47 | 6:51 |
| 22 | 14.0 | 4:47 | 6:50 |
| 23 | 14.0 | 4:48 | 6:50 |
| 24 | 14.0 | 4:49 | 6:49 |
| 25 | 14.0 | 4:50 | 6:48 |
| 26 | 14.0 | 4:50 | 6:48 |
| 27 | 13.9 | 4:51 | 6:47 |
| 28 | 13.9 | 4:52 | 6:46 |
| 29 | 13.9 | 4:53 | 6:45 |
| 30 | 13.9 | 4:53 | 6:44 |
| 31 | 13.8 | 4:54 | 6:44 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 4.85 kWh/m².
For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.18 kWh/m² in May across the year — July's 4.85 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) | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 4.8 | 4.9 | 4.9 | 4.9 | 5.0 | 5.0 | 5.0 | 5.0 | 5.1 | 5.1 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 |
| 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 | 4.5 | Bright |
| 2 | 4.5 | Bright |
| 3 | 4.5 | Bright |
| 4 | 4.5 | Bright |
| 5 | 4.6 | Bright |
| 6 | 4.6 | Bright |
| 7 | 4.6 | Bright |
| 8 | 4.6 | Bright |
| 9 | 4.7 | Bright |
| 10 | 4.7 | Bright |
| 11 | 4.7 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.8 | Bright |
| 15 | 4.8 | Bright |
| 16 | 4.8 | Bright |
| 17 | 4.9 | Bright |
| 18 | 4.9 | Bright |
| 19 | 4.9 | Bright |
| 20 | 5.0 | Bright |
| 21 | 5.0 | Bright |
| 22 | 5.0 | Bright |
| 23 | 5.0 | Bright |
| 24 | 5.1 | Bright |
| 25 | 5.1 | Bright |
| 26 | 5.1 | Bright |
| 27 | 5.1 | Bright |
| 28 | 5.2 | Bright |
| 29 | 5.2 | Bright |
| 30 | 5.2 | Bright |
| 31 | 5.2 | Bright |
Hazard calendar for Ōiso
In July, Ōiso sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Ōiso sits in the Pacific typhoon belt; the season peaks July–October.
Is July a good time to visit Ōiso?
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 Ōiso for sightseeing.
What to pack for Ōiso in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Ōiso sees daytime highs around 25°C and nights near 22°C. Pack rain gear. Worth having: light clothes and sun protection. About 15 days see rain.
Sea temperature near Ōiso in July
The nearest coast averages about 24°C in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 22 km away) is warmest in August at about 26°C and coldest in February near 15°C.
It's comfortable for a long swim from May 31 to Nov 26 — about 5.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 16 | 15 | 16 | 17 | 19 | 21 | 24 | 26 | 25 | 23 | 21 | 18 |
| Comfort | Cool | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 16 | Cool |
| Feb | 15 | Cool |
| Mar | 16 | Cool |
| Apr | 17 | Cool |
| May | 19 | Cool |
| Jun | 21 | Refreshing |
| Jul | 24 | Refreshing |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 23 | Refreshing |
| Nov | 21 | Refreshing |
| Dec | 18 | Cool |
UV index in Ōiso in July
Clear-sky midday UV in July 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 Ōiso peaks around July 20 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 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) | 3 | 4 | 5 | 7 | 9 | 9 | 10 | 10 | 9 | 6 | 4 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Extreme |
| Aug | 10 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Ōiso 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 Ōiso is worst in April — around 26 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 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) | 14 | 25 | 23 | 26 | 21 | 18 | 13 | 12 | 12 | 14 | 14 | 12 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 25 | Moderate |
| Mar | 23 | Moderate |
| Apr | 26 | Moderate |
| May | 21 | Moderate |
| Jun | 18 | Moderate |
| Jul | 13 | Moderate |
| Aug | 12 | Moderate |
| Sep | 12 | Moderate |
| Oct | 14 | Moderate |
| Nov | 14 | Moderate |
| Dec | 12 | Good |
Where is Ōiso?
Ōiso sits at 35.3°N, 139.3°E, 71 m above sea level, in Japan. The nearest listed city is Hiratsuka, 2.0 km away.
Topography around Ōiso
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Ōiso.
Within 3 km, the terrain around Ōiso has only modest variations in elevation — a maximum elevation change of 179 m around an average of 21 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,245 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,737 m.
The land around Ōiso is covered by artificial surfaces (37%), water (34%) and trees (25%) within 3 km, water (43%), artificial surfaces (28%) and trees (22%) within 16 km, and trees (42%) and water (35%) 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 Ōiso (35.3156°, 139.3162°, elevation 71 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).