Itsukaichi weather in July
In July, Itsukaichi sees average daytime highs of 27°C and overnight lows near 21°C, with 243 mm of rain across 21.8 wet days and about 14.2 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.
Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 12% 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 54 min by month's end. Set against the rest of the year, July is Itsukaichi's 11th-clearest and 10th-windiest month. For the whole year in context, see Itsukaichi's year-round climate.
- Daytime high
- 27°
- 2nd warmest
- Overnight low
- 21°
- 11th coldest
- Rainfall
- 243 mm
- 21.8 wet days
- Daylight
- 14 h 12 min
- 4:43 AM – 6:55 PM
- Cloud cover
- 78%
- 11th clearest
- Wind
- 6 km/h
- 10th windiest
- Solar energy
- 4.48 kWh/m²
- Travel score
- 4.5
- out of 10
Temperature in July
Highs climb over the month, from about 26°C in the first days to 28°C by the end.
A typical July day in Itsukaichi reaches about 27°C in the afternoon and slips back to 21°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, July runs about 4°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) | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 |
| Avg low (°C) | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 25 | 19 |
| 2 | 26 | 20 |
| 3 | 26 | 20 |
| 4 | 26 | 20 |
| 5 | 26 | 20 |
| 6 | 26 | 20 |
| 7 | 26 | 20 |
| 8 | 26 | 20 |
| 9 | 27 | 21 |
| 10 | 27 | 21 |
| 11 | 27 | 21 |
| 12 | 27 | 21 |
| 13 | 27 | 21 |
| 14 | 27 | 21 |
| 15 | 27 | 21 |
| 16 | 27 | 21 |
| 17 | 27 | 21 |
| 18 | 27 | 21 |
| 19 | 28 | 21 |
| 20 | 28 | 22 |
| 21 | 28 | 22 |
| 22 | 28 | 22 |
| 23 | 28 | 22 |
| 24 | 28 | 22 |
| 25 | 28 | 22 |
| 26 | 28 | 22 |
| 27 | 28 | 22 |
| 28 | 28 | 22 |
| 29 | 28 | 22 |
| 30 | 29 | 22 |
| 31 | 29 | 22 |
How July really feels in Itsukaichi
Once humidity and wind are folded in, July 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.
July sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Itsukaichi weather by month
How July compares with the rest of the year at a glance. July is the 2nd-warmest and 2nd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / -2° | 77 | 8.5 | 4.4 | 9.9 | 1.0 |
| Feb | 8° / -1° | 75 | 9.6 | 4.6 | 10.6 | 1.2 |
| Mar | 11° / 2° | 139 | 15.2 | 4.7 | 11.7 | 2.5 |
| Apr | 16° / 7° | 146 | 14.6 | 0.9 | 12.9 | 4.5 |
| May | 21° / 13° | 166 | 15.6 | 0 | 13.9 | 5.5 |
| Jun | 23° / 17° | 222 | 19.5 | 0 | 14.4 | 4.9 |
| Jul | 27° / 21° | 243 | 21.8 | 0 | 14.2 | 4.5 |
| Aug | 28° / 22° | 205 | 21 | 0 | 13.4 | 4.4 |
| Sep | 25° / 18° | 249 | 18.3 | 0 | 12.2 | 5.2 |
| Oct | 19° / 13° | 242 | 16.2 | 0 | 11.1 | 5.2 |
| Nov | 14° / 7° | 101 | 11.3 | 0.2 | 10.1 | 4.1 |
| Dec | 10° / 1° | 68 | 8.3 | 1.4 | 9.6 | 2.2 |
Cloud cover in July
The sky is clear or mostly clear about 12% of the time in July.
Beyond those clear spells, partly cloudy skies cover about 12% of July, with mostly cloudy or overcast conditions the remaining 76%. 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 (%) | 17 | 18 | 19 | 19 | 20 | 21 | 21 | 21 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 24 | 25 | 26 | 26 | 28 | 29 | 29 | 31 | 32 | 32 | 33 |
| Cloudier (%) | 83 | 82 | 81 | 81 | 80 | 79 | 79 | 79 | 79 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 78 | 77 | 76 | 76 | 75 | 74 | 74 | 72 | 71 | 71 | 69 | 68 | 68 | 67 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 17 | 83 |
| 2 | 18 | 82 |
| 3 | 19 | 81 |
| 4 | 19 | 81 |
| 5 | 20 | 80 |
| 6 | 21 | 79 |
| 7 | 21 | 79 |
| 8 | 21 | 79 |
| 9 | 21 | 79 |
| 10 | 22 | 78 |
| 11 | 22 | 78 |
| 12 | 22 | 78 |
| 13 | 22 | 78 |
| 14 | 22 | 78 |
| 15 | 22 | 78 |
| 16 | 22 | 78 |
| 17 | 22 | 78 |
| 18 | 22 | 78 |
| 19 | 23 | 77 |
| 20 | 24 | 76 |
| 21 | 24 | 76 |
| 22 | 25 | 75 |
| 23 | 26 | 74 |
| 24 | 26 | 74 |
| 25 | 28 | 72 |
| 26 | 29 | 71 |
| 27 | 29 | 71 |
| 28 | 31 | 69 |
| 29 | 32 | 68 |
| 30 | 32 | 68 |
| 31 | 33 | 67 |
Chance of precipitation in July
Itsukaichi gets around 243 mm of rain over 21.8 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 70% and peaks near 73% 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 (%) | 73 | 72 | 72 | 72 | 72 | 72 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 71 | 70 | 70 | 70 | 70 | 70 | 70 | 69 | 69 | 69 | 69 | 69 | 69 | 68 | 68 | 68 | 68 | 68 |
| Rain chance (%) | |
|---|---|
| 1 | 73 |
| 2 | 72 |
| 3 | 72 |
| 4 | 72 |
| 5 | 72 |
| 6 | 72 |
| 7 | 71 |
| 8 | 71 |
| 9 | 71 |
| 10 | 71 |
| 11 | 71 |
| 12 | 71 |
| 13 | 71 |
| 14 | 71 |
| 15 | 70 |
| 16 | 70 |
| 17 | 70 |
| 18 | 70 |
| 19 | 70 |
| 20 | 70 |
| 21 | 69 |
| 22 | 69 |
| 23 | 69 |
| 24 | 69 |
| 25 | 69 |
| 26 | 69 |
| 27 | 68 |
| 28 | 68 |
| 29 | 68 |
| 30 | 68 |
| 31 | 68 |
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 44% of days. Sticky, muggy-or-worse air turns up on roughly 82% 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 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 | 0 | 0 |
| Comfortable (%) | 6 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Humid (%) | 28 | 26 | 25 | 24 | 22 | 21 | 20 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 15 | 14 | 14 | 13 | 12 | 12 | 11 | 10 | 10 | 9 | 8 | 8 | 7 | 7 | 6 | 6 |
| Muggy (%) | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 46 | 45 | 44 | 43 | 41 | 40 | 38 | 37 | 36 | 34 | 33 | 32 | 31 | 30 | 29 | 29 | 28 | 28 | 27 | 26 | 26 | 25 | 24 | 23 |
| Oppressive (%) | 19 | 21 | 22 | 24 | 26 | 28 | 29 | 31 | 33 | 35 | 37 | 39 | 40 | 42 | 44 | 45 | 47 | 49 | 50 | 52 | 53 | 55 | 56 | 57 | 59 | 60 | 61 | 62 | 63 | 65 | 65 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 5 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 1 | 6 | 28 | 46 | 19 | 0 |
| 2 | 1 | 6 | 26 | 46 | 21 | 0 |
| 3 | 0 | 5 | 25 | 47 | 22 | 0 |
| 4 | 0 | 5 | 24 | 47 | 24 | 0 |
| 5 | 0 | 4 | 22 | 47 | 26 | 0 |
| 6 | 0 | 4 | 21 | 47 | 28 | 0 |
| 7 | 0 | 3 | 20 | 47 | 29 | 0 |
| 8 | 0 | 3 | 19 | 46 | 31 | 0 |
| 9 | 0 | 3 | 18 | 45 | 33 | 1 |
| 10 | 0 | 3 | 18 | 44 | 35 | 1 |
| 11 | 0 | 2 | 17 | 43 | 37 | 1 |
| 12 | 0 | 2 | 17 | 41 | 39 | 1 |
| 13 | 0 | 2 | 16 | 40 | 40 | 1 |
| 14 | 0 | 2 | 16 | 38 | 42 | 2 |
| 15 | 0 | 2 | 16 | 37 | 44 | 2 |
| 16 | 0 | 2 | 15 | 36 | 45 | 2 |
| 17 | 0 | 2 | 14 | 34 | 47 | 2 |
| 18 | 0 | 2 | 14 | 33 | 49 | 2 |
| 19 | 0 | 2 | 13 | 32 | 50 | 3 |
| 20 | 0 | 2 | 12 | 31 | 52 | 3 |
| 21 | 0 | 2 | 12 | 30 | 53 | 3 |
| 22 | 0 | 2 | 11 | 29 | 55 | 3 |
| 23 | 0 | 2 | 10 | 29 | 56 | 3 |
| 24 | 0 | 2 | 10 | 28 | 57 | 3 |
| 25 | 0 | 1 | 9 | 28 | 59 | 3 |
| 26 | 0 | 1 | 8 | 27 | 60 | 4 |
| 27 | 0 | 1 | 8 | 26 | 61 | 4 |
| 28 | 0 | 1 | 7 | 26 | 62 | 4 |
| 29 | 0 | 1 | 7 | 25 | 63 | 4 |
| 30 | 0 | 1 | 6 | 24 | 65 | 4 |
| 31 | 0 | 1 | 6 | 23 | 65 | 5 |
Wind in July
Winds average 6 km/h in July.
Across July, daily wind ranges from about 6 km/h on the calmest days to 6 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) | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| 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 | 6 | calm |
| 2 | 6 | calm |
| 3 | 6 | calm |
| 4 | 6 | calm |
| 5 | 6 | calm |
| 6 | 6 | calm |
| 7 | 6 | calm |
| 8 | 6 | calm |
| 9 | 6 | calm |
| 10 | 6 | calm |
| 11 | 6 | calm |
| 12 | 6 | calm |
| 13 | 6 | calm |
| 14 | 6 | calm |
| 15 | 6 | calm |
| 16 | 6 | calm |
| 17 | 6 | calm |
| 18 | 6 | calm |
| 19 | 6 | calm |
| 20 | 6 | calm |
| 21 | 6 | calm |
| 22 | 6 | calm |
| 23 | 6 | calm |
| 24 | 6 | calm |
| 25 | 6 | calm |
| 26 | 6 | calm |
| 27 | 6 | calm |
| 28 | 6 | calm |
| 29 | 6 | calm |
| 30 | 6 | calm |
| 31 | 6 | calm |
Sunrise & sunset in July
Daylight runs from about 14 h 24 min at the start of July to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 30 minutes over July. Sunrise moves from 4:35 AM to 4:54 AM, and sunset from 6:58 PM to 6:45 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 | 14.4 | 14.4 | 14.4 | 14.4 | 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 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.0 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.9 |
| Sunrise (AM) | 4:35 | 4:35 | 4:36 | 4:36 | 4:36 | 4:37 | 4:37 | 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 | 4:48 | 4:48 | 4:49 | 4:50 | 4:51 | 4:51 | 4:52 | 4:53 | 4:54 |
| Sunset (PM) | 6:58 | 6:58 | 6:58 | 6:58 | 6:58 | 6:58 | 6:58 | 6:57 | 6:57 | 6:57 | 6:57 | 6:56 | 6:56 | 6:56 | 6:55 | 6:55 | 6:54 | 6:54 | 6:53 | 6:53 | 6:52 | 6:52 | 6:51 | 6:50 | 6:50 | 6:49 | 6:48 | 6:47 | 6:47 | 6:46 | 6:45 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.4 | 4:35 | 6:58 |
| 2 | 14.4 | 4:35 | 6:58 |
| 3 | 14.4 | 4:36 | 6:58 |
| 4 | 14.4 | 4:36 | 6:58 |
| 5 | 14.4 | 4:36 | 6:58 |
| 6 | 14.3 | 4:37 | 6:58 |
| 7 | 14.3 | 4:37 | 6:58 |
| 8 | 14.3 | 4:38 | 6:57 |
| 9 | 14.3 | 4:39 | 6:57 |
| 10 | 14.3 | 4:39 | 6:57 |
| 11 | 14.3 | 4:40 | 6:57 |
| 12 | 14.3 | 4:40 | 6:56 |
| 13 | 14.3 | 4:41 | 6:56 |
| 14 | 14.2 | 4:41 | 6:56 |
| 15 | 14.2 | 4:42 | 6:55 |
| 16 | 14.2 | 4:43 | 6:55 |
| 17 | 14.2 | 4:43 | 6:54 |
| 18 | 14.2 | 4:44 | 6:54 |
| 19 | 14.1 | 4:45 | 6:53 |
| 20 | 14.1 | 4:45 | 6:53 |
| 21 | 14.1 | 4:46 | 6:52 |
| 22 | 14.1 | 4:47 | 6:52 |
| 23 | 14.1 | 4:48 | 6:51 |
| 24 | 14.0 | 4:48 | 6:50 |
| 25 | 14.0 | 4:49 | 6:50 |
| 26 | 14.0 | 4:50 | 6:49 |
| 27 | 14.0 | 4:51 | 6:48 |
| 28 | 13.9 | 4:51 | 6:47 |
| 29 | 13.9 | 4:52 | 6:47 |
| 30 | 13.9 | 4:53 | 6:46 |
| 31 | 13.9 | 4:54 | 6:45 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 4.48 kWh/m².
For context, solar energy here swings from a low near 2.39 kWh/m² to a high of 5.06 kWh/m² in May across the year — July's 4.48 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 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.1 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 | 4.6 | 4.7 | 4.7 | 4.7 | 4.8 | 4.8 | 4.8 | 4.8 | 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 | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 4.1 | Bright |
| 2 | 4.2 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.2 | Bright |
| 6 | 4.2 | Bright |
| 7 | 4.3 | Bright |
| 8 | 4.3 | Bright |
| 9 | 4.3 | Bright |
| 10 | 4.3 | Bright |
| 11 | 4.3 | Bright |
| 12 | 4.4 | Bright |
| 13 | 4.4 | Bright |
| 14 | 4.4 | Bright |
| 15 | 4.4 | Bright |
| 16 | 4.5 | Bright |
| 17 | 4.5 | Bright |
| 18 | 4.5 | Bright |
| 19 | 4.5 | Bright |
| 20 | 4.6 | Bright |
| 21 | 4.6 | Bright |
| 22 | 4.6 | Bright |
| 23 | 4.7 | Bright |
| 24 | 4.7 | Bright |
| 25 | 4.7 | Bright |
| 26 | 4.8 | Bright |
| 27 | 4.8 | Bright |
| 28 | 4.8 | Bright |
| 29 | 4.8 | Bright |
| 30 | 4.8 | Bright |
| 31 | 4.8 | Bright |
Hazard calendar for Itsukaichi
In July, Itsukaichi sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Itsukaichi sits in the Pacific typhoon belt; the season peaks July–October.
Is July a good time to visit Itsukaichi?
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 Itsukaichi for sightseeing.
What to pack for Itsukaichi in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Itsukaichi sees daytime highs around 27°C and nights near 21°C. Pack light clothes and rain gear. About 22 days see rain.
Sea temperature near Itsukaichi in July
The nearest coast averages about 23°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 60 km away) is warmest in August at about 26°C and coldest in February near 13°C.
It's comfortable for a long swim from Jun 7 to Nov 3 — about 4.9 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 14 | 13 | 13 | 15 | 18 | 21 | 23 | 26 | 25 | 22 | 19 | 16 |
| Comfort | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 14 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 15 | Cool |
| May | 18 | Cool |
| Jun | 21 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 19 | Cool |
| Dec | 16 | Cool |
UV index in Itsukaichi 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 Itsukaichi peaks around July 16 at about 10 (very high) — 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) | 2 | 4 | 5 | 7 | 9 | 9 | 10 | 9 | 9 | 6 | 4 | 2 |
| Level | Moderate | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | Moderate |
| Apr | 7 | High |
| May | 9 | Very high |
| Jun | 9 | Very high |
| Jul | 10 | Very high |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 6 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Itsukaichi 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 Itsukaichi is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 14 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 | 21 | 25 | 26 | 24 | 20 | 17 | 16 | 16 | 16 | 16 | 14 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 21 | Moderate |
| Mar | 25 | Moderate |
| Apr | 26 | Moderate |
| May | 24 | Moderate |
| Jun | 20 | Moderate |
| Jul | 17 | Moderate |
| Aug | 16 | Moderate |
| Sep | 16 | Moderate |
| Oct | 16 | Moderate |
| Nov | 16 | Moderate |
| Dec | 14 | Moderate |
Where is Itsukaichi?
Itsukaichi sits at 35.7°N, 139.2°E, 184 m above sea level, in Japan. The nearest listed city is Akiruno, 1.0 km away.
Topography around Itsukaichi
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Itsukaichi.
Within 3 km, the terrain around Itsukaichi has significant variations in elevation — a maximum elevation change of 487 m around an average of 309 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,333 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,737 m.
The land around Itsukaichi is covered by trees (85%) within 3 km, trees (75%) and artificial surfaces (20%) within 16 km, and trees (48%) and artificial surfaces (27%) 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 Itsukaichi (35.7253°, 139.2178°, elevation 184 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).