Sendai weather in July
In July, Sendai sees average daytime highs of 29°C and overnight lows near 25°C, with 324 mm of rain across 17.6 wet days and about 13.9 hours of daylight. It is the 2nd-warmest and 2nd-wettest month of the year here.
Highs climb over the month, from about 27°C in the first days to 30°C by the end. The sky is clear or mostly clear about 24% of the time in July, and the air most often feels miserable.
Daylight stretches from about 14 h 06 min at the start of July to 13 h 36 min by month's end. Set against the rest of the year, July is Sendai's 11th-clearest and 8th-windiest month. For the whole year in context, see Sendai's year-round climate.
- Daytime high
- 29°
- 2nd warmest
- Overnight low
- 25°
- 11th coldest
- Rainfall
- 324 mm
- 17.6 wet days
- Daylight
- 13 h 54 min
- 5:28 AM – 7:21 PM
- Cloud cover
- 69%
- 11th clearest
- Wind
- 12 km/h
- 8th windiest
- Solar energy
- 4.9 kWh/m²
- Travel score
- 4.7
- out of 10
Sendai is city in Kagoshima prefecture, Japan.
- Density
- 135/km²
- people per km²
- Founded
- 2004
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in July
Highs climb over the month, from about 27°C in the first days to 30°C by the end.
A typical July day in Sendai reaches about 29°C in the afternoon and slips back to 25°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°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) | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 29 | 30 | 30 | 30 | 30 | 30 | 30 |
| Avg low (°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 | 26 | 26 | 26 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 27 | 24 |
| 2 | 27 | 24 |
| 3 | 27 | 24 |
| 4 | 27 | 24 |
| 5 | 27 | 24 |
| 6 | 27 | 24 |
| 7 | 28 | 25 |
| 8 | 28 | 25 |
| 9 | 28 | 25 |
| 10 | 28 | 25 |
| 11 | 28 | 25 |
| 12 | 28 | 25 |
| 13 | 28 | 25 |
| 14 | 28 | 25 |
| 15 | 29 | 25 |
| 16 | 29 | 25 |
| 17 | 29 | 26 |
| 18 | 29 | 26 |
| 19 | 29 | 26 |
| 20 | 29 | 26 |
| 21 | 29 | 26 |
| 22 | 29 | 26 |
| 23 | 29 | 26 |
| 24 | 29 | 26 |
| 25 | 29 | 26 |
| 26 | 30 | 26 |
| 27 | 30 | 26 |
| 28 | 30 | 26 |
| 29 | 30 | 26 |
| 30 | 30 | 26 |
| 31 | 30 | 26 |
How July really feels in Sendai
Once humidity and wind are folded in, July averages 21 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.
Sendai 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 | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 12° / 8° | 98 | 12.3 | 10.2 | 2.8 |
| Feb | 12° / 8° | 113 | 11.2 | 10.8 | 3.1 |
| Mar | 15° / 11° | 161 | 13.4 | 11.8 | 4.2 |
| Apr | 18° / 14° | 186 | 11.7 | 12.8 | 5.6 |
| May | 22° / 18° | 205 | 11.3 | 13.6 | 6.3 |
| Jun | 25° / 22° | 500 | 18.5 | 14 | 5.2 |
| Jul | 29° / 25° | 324 | 17.6 | 13.9 | 4.7 |
| Aug | 30° / 26° | 166 | 15.7 | 13.2 | 4.5 |
| Sep | 28° / 24° | 198 | 13.1 | 12.2 | 5.7 |
| Oct | 24° / 20° | 109 | 8.7 | 11.2 | 7.2 |
| Nov | 19° / 15° | 122 | 9.3 | 10.4 | 6.1 |
| Dec | 14° / 10° | 103 | 10.6 | 10 | 4.0 |
Cloud cover in July
The sky is clear or mostly clear about 24% 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 65%. 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 (%) | 18 | 19 | 20 | 22 | 22 | 24 | 24 | 26 | 27 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 37 | 38 | 39 | 40 | 42 | 42 | 44 | 45 | 47 | 48 | 49 | 49 | 50 | 50 | 50 |
| Cloudier (%) | 82 | 81 | 80 | 78 | 78 | 76 | 76 | 74 | 73 | 71 | 70 | 69 | 68 | 67 | 66 | 65 | 63 | 62 | 61 | 60 | 58 | 58 | 56 | 55 | 53 | 52 | 51 | 51 | 50 | 50 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 18 | 82 |
| 2 | 19 | 81 |
| 3 | 20 | 80 |
| 4 | 22 | 78 |
| 5 | 22 | 78 |
| 6 | 24 | 76 |
| 7 | 24 | 76 |
| 8 | 26 | 74 |
| 9 | 27 | 73 |
| 10 | 29 | 71 |
| 11 | 30 | 70 |
| 12 | 31 | 69 |
| 13 | 32 | 68 |
| 14 | 33 | 67 |
| 15 | 34 | 66 |
| 16 | 35 | 65 |
| 17 | 37 | 63 |
| 18 | 38 | 62 |
| 19 | 39 | 61 |
| 20 | 40 | 60 |
| 21 | 42 | 58 |
| 22 | 42 | 58 |
| 23 | 44 | 56 |
| 24 | 45 | 55 |
| 25 | 47 | 53 |
| 26 | 48 | 52 |
| 27 | 49 | 51 |
| 28 | 49 | 51 |
| 29 | 50 | 50 |
| 30 | 50 | 50 |
| 31 | 50 | 50 |
Chance of precipitation in July
Sendai gets around 324 mm of rain over 17.6 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 57% and peaks near 72% 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 (%) | 72 | 72 | 71 | 70 | 69 | 68 | 66 | 65 | 64 | 62 | 61 | 60 | 58 | 57 | 56 | 54 | 53 | 52 | 51 | 50 | 50 | 49 | 49 | 49 | 48 | 48 | 48 | 47 | 47 | 47 | 47 |
| Rain chance (%) | |
|---|---|
| 1 | 72 |
| 2 | 72 |
| 3 | 71 |
| 4 | 70 |
| 5 | 69 |
| 6 | 68 |
| 7 | 66 |
| 8 | 65 |
| 9 | 64 |
| 10 | 62 |
| 11 | 61 |
| 12 | 60 |
| 13 | 58 |
| 14 | 57 |
| 15 | 56 |
| 16 | 54 |
| 17 | 53 |
| 18 | 52 |
| 19 | 51 |
| 20 | 50 |
| 21 | 50 |
| 22 | 49 |
| 23 | 49 |
| 24 | 49 |
| 25 | 48 |
| 26 | 48 |
| 27 | 48 |
| 28 | 47 |
| 29 | 47 |
| 30 | 47 |
| 31 | 47 |
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 59% 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 | 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 |
| Muggy (%) | 16 | 15 | 13 | 12 | 11 | 9 | 8 | 7 | 7 | 6 | 5 | 5 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 |
| Oppressive (%) | 52 | 50 | 50 | 48 | 47 | 46 | 44 | 43 | 42 | 40 | 39 | 38 | 37 | 35 | 34 | 33 | 32 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 | 29 | 29 | 29 | 28 | 28 | 28 |
| Miserable (%) | 31 | 34 | 37 | 39 | 42 | 45 | 47 | 49 | 51 | 54 | 56 | 57 | 59 | 61 | 63 | 64 | 65 | 67 | 67 | 68 | 68 | 68 | 70 | 70 | 70 | 70 | 70 | 71 | 72 | 72 | 72 |
| Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|
| 1 | 1 | 16 | 52 | 31 |
| 2 | 1 | 15 | 50 | 34 |
| 3 | 1 | 13 | 50 | 37 |
| 4 | 0 | 12 | 48 | 39 |
| 5 | 0 | 11 | 47 | 42 |
| 6 | 0 | 9 | 46 | 45 |
| 7 | 0 | 8 | 44 | 47 |
| 8 | 0 | 7 | 43 | 49 |
| 9 | 0 | 7 | 42 | 51 |
| 10 | 0 | 6 | 40 | 54 |
| 11 | 0 | 5 | 39 | 56 |
| 12 | 0 | 5 | 38 | 57 |
| 13 | 0 | 4 | 37 | 59 |
| 14 | 0 | 4 | 35 | 61 |
| 15 | 0 | 3 | 34 | 63 |
| 16 | 0 | 3 | 33 | 64 |
| 17 | 0 | 3 | 32 | 65 |
| 18 | 0 | 2 | 31 | 67 |
| 19 | 0 | 2 | 31 | 67 |
| 20 | 0 | 2 | 30 | 68 |
| 21 | 0 | 2 | 30 | 68 |
| 22 | 0 | 2 | 30 | 68 |
| 23 | 0 | 1 | 29 | 70 |
| 24 | 0 | 1 | 29 | 70 |
| 25 | 0 | 1 | 29 | 70 |
| 26 | 0 | 1 | 29 | 70 |
| 27 | 0 | 1 | 29 | 70 |
| 28 | 0 | 0 | 29 | 71 |
| 29 | 0 | 0 | 28 | 72 |
| 30 | 0 | 0 | 28 | 72 |
| 31 | 0 | 0 | 28 | 72 |
Wind in July
Winds average 12 km/h in July.
Across July, daily wind ranges from about 11 km/h on the calmest days to 12 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 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 |
| Feels | 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 | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 12 | light breeze |
| 2 | 12 | light breeze |
| 3 | 12 | light breeze |
| 4 | 12 | light breeze |
| 5 | 12 | light breeze |
| 6 | 12 | light breeze |
| 7 | 12 | light breeze |
| 8 | 12 | light breeze |
| 9 | 12 | light breeze |
| 10 | 12 | light breeze |
| 11 | 12 | calm |
| 12 | 12 | calm |
| 13 | 12 | calm |
| 14 | 12 | calm |
| 15 | 12 | calm |
| 16 | 11 | calm |
| 17 | 11 | calm |
| 18 | 11 | calm |
| 19 | 11 | calm |
| 20 | 11 | calm |
| 21 | 11 | calm |
| 22 | 11 | calm |
| 23 | 11 | calm |
| 24 | 11 | calm |
| 25 | 11 | calm |
| 26 | 11 | calm |
| 27 | 11 | calm |
| 28 | 11 | calm |
| 29 | 11 | calm |
| 30 | 11 | calm |
| 31 | 11 | calm |
Sunrise & sunset in July
Daylight runs from about 14 h 06 min at the start of July to 13 h 36 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 5:20 AM to 5:37 AM, and sunset from 7:24 PM to 7:13 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) | 14.1 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 14.0 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.9 | 13.8 | 13.8 | 13.8 | 13.8 | 13.8 | 13.7 | 13.7 | 13.7 | 13.7 | 13.7 | 13.6 | 13.6 | 13.6 |
| Sunrise (AM) | 5:20 | 5:21 | 5:21 | 5:22 | 5:22 | 5:23 | 5:23 | 5:23 | 5:24 | 5:24 | 5:25 | 5:25 | 5:26 | 5:27 | 5:27 | 5:28 | 5:28 | 5:29 | 5:29 | 5:30 | 5:31 | 5:31 | 5:32 | 5:33 | 5:33 | 5:34 | 5:34 | 5:35 | 5:36 | 5:36 | 5:37 |
| Sunset (PM) | 7:24 | 7:24 | 7:24 | 7:24 | 7:24 | 7:24 | 7:23 | 7:23 | 7:23 | 7:23 | 7:23 | 7:22 | 7:22 | 7:22 | 7:21 | 7:21 | 7:21 | 7:20 | 7:20 | 7:19 | 7:19 | 7:18 | 7:18 | 7:17 | 7:17 | 7:16 | 7:16 | 7:15 | 7:14 | 7:13 | 7:13 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.1 | 5:20 | 7:24 |
| 2 | 14.0 | 5:21 | 7:24 |
| 3 | 14.0 | 5:21 | 7:24 |
| 4 | 14.0 | 5:22 | 7:24 |
| 5 | 14.0 | 5:22 | 7:24 |
| 6 | 14.0 | 5:23 | 7:24 |
| 7 | 14.0 | 5:23 | 7:23 |
| 8 | 14.0 | 5:23 | 7:23 |
| 9 | 14.0 | 5:24 | 7:23 |
| 10 | 14.0 | 5:24 | 7:23 |
| 11 | 14.0 | 5:25 | 7:23 |
| 12 | 13.9 | 5:25 | 7:22 |
| 13 | 13.9 | 5:26 | 7:22 |
| 14 | 13.9 | 5:27 | 7:22 |
| 15 | 13.9 | 5:27 | 7:21 |
| 16 | 13.9 | 5:28 | 7:21 |
| 17 | 13.9 | 5:28 | 7:21 |
| 18 | 13.9 | 5:29 | 7:20 |
| 19 | 13.8 | 5:29 | 7:20 |
| 20 | 13.8 | 5:30 | 7:19 |
| 21 | 13.8 | 5:31 | 7:19 |
| 22 | 13.8 | 5:31 | 7:18 |
| 23 | 13.8 | 5:32 | 7:18 |
| 24 | 13.7 | 5:33 | 7:17 |
| 25 | 13.7 | 5:33 | 7:17 |
| 26 | 13.7 | 5:34 | 7:16 |
| 27 | 13.7 | 5:34 | 7:16 |
| 28 | 13.7 | 5:35 | 7:15 |
| 29 | 13.6 | 5:36 | 7:14 |
| 30 | 13.6 | 5:36 | 7:13 |
| 31 | 13.6 | 5:37 | 7:13 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 4.9 kWh/m².
For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 5.13 kWh/m² in May across the year — July's 4.9 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 | 4.1 | 4.2 | 4.2 | 4.3 | 4.4 | 4.4 | 4.5 | 4.6 | 4.6 | 4.7 | 4.8 | 4.8 | 4.9 | 4.9 | 5.0 | 5.0 | 5.1 | 5.1 | 5.2 | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 |
| 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 | 4.1 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.3 | Bright |
| 6 | 4.4 | Bright |
| 7 | 4.4 | Bright |
| 8 | 4.5 | Bright |
| 9 | 4.6 | Bright |
| 10 | 4.6 | Bright |
| 11 | 4.7 | Bright |
| 12 | 4.8 | Bright |
| 13 | 4.8 | Bright |
| 14 | 4.9 | Bright |
| 15 | 4.9 | Bright |
| 16 | 5.0 | Bright |
| 17 | 5.0 | Bright |
| 18 | 5.1 | Bright |
| 19 | 5.1 | Bright |
| 20 | 5.2 | Bright |
| 21 | 5.2 | Bright |
| 22 | 5.2 | Bright |
| 23 | 5.2 | Bright |
| 24 | 5.3 | Bright |
| 25 | 5.3 | Bright |
| 26 | 5.3 | Bright |
| 27 | 5.3 | Bright |
| 28 | 5.3 | Bright |
| 29 | 5.3 | Bright |
| 30 | 5.3 | Bright |
| 31 | 5.3 | Bright |
Hazard calendar for Sendai
In July, Sendai sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.
Sendai sits in the Pacific typhoon belt; the season peaks July–October.
Sendai's rainy season runs June–July, when most of the year's rain falls.
Is July a good time to visit Sendai?
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 Sendai for sightseeing.
What to pack for Sendai in July
From July's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In July, Sendai sees daytime highs around 29°C and nights near 25°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.
Sea temperature near Sendai in July
The nearest coast averages about 26°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 18 km away) is warmest in August at about 28°C and coldest in February near 17°C.
It's comfortable for a long swim from May 9 to Dec 11 — about 7.1 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 18 | 17 | 17 | 18 | 21 | 23 | 26 | 28 | 27 | 25 | 22 | 20 |
| Comfort | Cool | Cool | Cool | Cool | Refreshing | Refreshing | Warm | Tropical | Warm | Warm | Refreshing | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 18 | Cool |
| Feb | 17 | Cool |
| Mar | 17 | Cool |
| Apr | 18 | Cool |
| May | 21 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 26 | Warm |
| Aug | 28 | Tropical |
| Sep | 27 | Warm |
| Oct | 25 | Warm |
| Nov | 22 | Refreshing |
| Dec | 20 | Cool |
UV index in Sendai 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 Sendai peaks around July 10 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (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) | 3 | 5 | 7 | 8 | 8 | 10 | 11 | 9 | 10 | 6 | 5 | 3 |
| Level | Moderate | Moderate | High | Very high | Very high | Extreme | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 3 | Moderate |
| Feb | 5 | Moderate |
| Mar | 7 | High |
| Apr | 8 | Very high |
| May | 8 | Very high |
| Jun | 10 | Extreme |
| Jul | 11 | Extreme |
| Aug | 9 | Very high |
| Sep | 10 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 3 | Moderate |
Air quality in Sendai 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 Sendai is worst in April — around 23 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (October, 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 | 19 | 22 | 23 | 21 | 17 | 12 | 14 | 12 | 12 | 14 | 13 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 15 | Moderate |
| Feb | 19 | Moderate |
| Mar | 22 | Moderate |
| Apr | 23 | Moderate |
| May | 21 | Moderate |
| Jun | 17 | Moderate |
| Jul | 12 | Moderate |
| Aug | 14 | Moderate |
| Sep | 12 | Moderate |
| Oct | 12 | Moderate |
| Nov | 14 | Moderate |
| Dec | 13 | Moderate |
Where is Sendai?
Sendai sits at 31.8°N, 130.3°E, 5 m above sea level, in Japan. The nearest listed city is Ichikikushikino, 10 km away.
Topography around Sendai
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Sendai.
Within 3 km, the terrain around Sendai has only modest variations in elevation — a maximum elevation change of 179 m around an average of 32 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 686 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,644 m.
The land around Sendai is covered by trees (41%) and artificial surfaces (41%) within 3 km, trees (69%) and water (21%) within 16 km, and water (52%) and trees (41%) 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 Sendai (31.8167°, 130.3°, elevation 5 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).