Sendai weather in July
In July, Sendai sees average daytime highs of 26°C and overnight lows near 20°C, with 187 mm of rain across 17.4 wet days and about 14.4 hours of daylight. It is the 2nd-warmest and 1st-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 10% of the time in July, and the air most often feels muggy.
Daylight stretches from about 14 h 36 min at the start of July to 14 hours by month's end. Set against the rest of the year, July is Sendai's 12th-clearest and 12th-windiest month. For the whole year in context, see Sendai's year-round climate.
- Daytime high
- 26°
- 2nd warmest
- Overnight low
- 20°
- 11th coldest
- Rainfall
- 187 mm
- 17.4 wet days
- Daylight
- 14 h 24 min
- 4:30 AM – 6:55 PM
- Cloud cover
- 80%
- 12th clearest
- Wind
- 6 km/h
- 12th windiest
- Solar energy
- 4.25 kWh/m²
- Travel score
- 5.3
- out of 10
Sendai is city in Miyagi Prefecture, Japan.
- Air quality
- Good
- PM2.5 7 µg/m³ · 2010
- Density
- 1,395/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 Sendai reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 30°C. Set against its neighbours, July runs about 4°C warmer than June and about 2°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 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 |
| Avg low (°C) | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 | 21 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 24 | 18 |
| 2 | 24 | 18 |
| 3 | 24 | 18 |
| 4 | 24 | 18 |
| 5 | 24 | 18 |
| 6 | 24 | 19 |
| 7 | 24 | 19 |
| 8 | 25 | 19 |
| 9 | 25 | 19 |
| 10 | 25 | 19 |
| 11 | 25 | 19 |
| 12 | 25 | 19 |
| 13 | 25 | 19 |
| 14 | 25 | 20 |
| 15 | 25 | 20 |
| 16 | 25 | 20 |
| 17 | 26 | 20 |
| 18 | 26 | 20 |
| 19 | 26 | 20 |
| 20 | 26 | 20 |
| 21 | 26 | 20 |
| 22 | 26 | 20 |
| 23 | 26 | 21 |
| 24 | 27 | 21 |
| 25 | 27 | 21 |
| 26 | 27 | 21 |
| 27 | 27 | 21 |
| 28 | 27 | 21 |
| 29 | 27 | 21 |
| 30 | 27 | 21 |
| 31 | 27 | 21 |
How July really feels in Sendai
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.
Sendai weather by month
How July compares with the rest of the year at a glance. July is the 2nd-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 | 4° / -3° | 63 | 10.9 | 9.9 | 9.6 | 0.0 |
| Feb | 4° / -3° | 49 | 9.2 | 7.7 | 10.5 | 0.0 |
| Mar | 8° / -0° | 87 | 11.6 | 5.4 | 11.7 | 1.4 |
| Apr | 14° / 5° | 94 | 11.2 | 1.1 | 13 | 4.0 |
| May | 19° / 11° | 103 | 11.4 | 0 | 14 | 5.8 |
| Jun | 22° / 16° | 129 | 13.4 | 0 | 14.6 | 5.8 |
| Jul | 26° / 20° | 187 | 17.4 | 0 | 14.4 | 5.3 |
| Aug | 27° / 21° | 169 | 16.2 | 0 | 13.5 | 5.4 |
| Sep | 24° / 17° | 167 | 14.3 | 0 | 12.3 | 5.8 |
| Oct | 18° / 11° | 141 | 11 | 0 | 11 | 5.6 |
| Nov | 12° / 4° | 63 | 9.3 | 0.9 | 9.9 | 3.3 |
| Dec | 6° / -0° | 58 | 11 | 6 | 9.4 | 0.6 |
Cloud cover in July
The sky is clear or mostly clear about 10% of the time in July, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 11% of July, with mostly cloudy or overcast conditions the remaining 79%. 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 | 18 | 18 | 18 | 18 | 18 | 18 | 20 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 23 | 25 | 25 | 26 | 27 | 28 | 29 | 30 |
| Cloudier (%) | 82 | 82 | 82 | 82 | 82 | 82 | 82 | 80 | 80 | 81 | 81 | 81 | 81 | 81 | 81 | 81 | 80 | 80 | 80 | 79 | 79 | 78 | 78 | 77 | 75 | 75 | 74 | 73 | 72 | 71 | 70 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 18 | 82 |
| 2 | 18 | 82 |
| 3 | 18 | 82 |
| 4 | 18 | 82 |
| 5 | 18 | 82 |
| 6 | 18 | 82 |
| 7 | 18 | 82 |
| 8 | 20 | 80 |
| 9 | 20 | 80 |
| 10 | 19 | 81 |
| 11 | 19 | 81 |
| 12 | 19 | 81 |
| 13 | 19 | 81 |
| 14 | 19 | 81 |
| 15 | 19 | 81 |
| 16 | 19 | 81 |
| 17 | 20 | 80 |
| 18 | 20 | 80 |
| 19 | 20 | 80 |
| 20 | 21 | 79 |
| 21 | 21 | 79 |
| 22 | 22 | 78 |
| 23 | 22 | 78 |
| 24 | 23 | 77 |
| 25 | 25 | 75 |
| 26 | 25 | 75 |
| 27 | 26 | 74 |
| 28 | 27 | 73 |
| 29 | 28 | 72 |
| 30 | 29 | 71 |
| 31 | 30 | 70 |
Chance of precipitation in July
Sendai gets around 187 mm of rain over 17.4 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 56% and peaks near 60% 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 (%) | 55 | 56 | 57 | 57 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 60 | 59 | 59 | 58 | 58 | 58 | 57 | 56 | 56 | 55 | 54 | 53 | 53 | 52 | 51 | 51 | 50 | 50 | 50 | 50 |
| Rain chance (%) | |
|---|---|
| 1 | 55 |
| 2 | 56 |
| 3 | 57 |
| 4 | 57 |
| 5 | 58 |
| 6 | 58 |
| 7 | 59 |
| 8 | 59 |
| 9 | 59 |
| 10 | 60 |
| 11 | 60 |
| 12 | 60 |
| 13 | 59 |
| 14 | 59 |
| 15 | 58 |
| 16 | 58 |
| 17 | 58 |
| 18 | 57 |
| 19 | 56 |
| 20 | 56 |
| 21 | 55 |
| 22 | 54 |
| 23 | 53 |
| 24 | 53 |
| 25 | 52 |
| 26 | 51 |
| 27 | 51 |
| 28 | 50 |
| 29 | 50 |
| 30 | 50 |
| 31 | 50 |
Humidity in July
Most of July feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, July lands in the muggy band about 37% of days. Sticky, muggy-or-worse air turns up on roughly 67% 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 (%) | 3 | 3 | 2 | 2 | 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 |
| Comfortable (%) | 17 | 16 | 15 | 14 | 14 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 8 | 8 | 7 | 7 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 |
| Humid (%) | 38 | 37 | 36 | 35 | 34 | 33 | 32 | 31 | 30 | 29 | 28 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 12 | 11 | 11 |
| Muggy (%) | 35 | 36 | 37 | 39 | 39 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 40 | 40 | 39 | 39 | 38 | 38 | 37 | 36 | 36 | 35 | 34 | 32 | 31 | 30 | 29 | 28 |
| Oppressive (%) | 7 | 8 | 10 | 11 | 12 | 13 | 15 | 16 | 17 | 19 | 20 | 21 | 23 | 24 | 26 | 27 | 29 | 31 | 33 | 35 | 37 | 39 | 40 | 42 | 44 | 46 | 48 | 49 | 51 | 52 | 53 |
| Miserable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| 1 | 3 | 17 | 38 | 35 | 7 | 0 |
| 2 | 3 | 16 | 37 | 36 | 8 | 0 |
| 3 | 2 | 15 | 36 | 37 | 10 | 0 |
| 4 | 2 | 14 | 35 | 39 | 11 | 0 |
| 5 | 1 | 14 | 34 | 39 | 12 | 0 |
| 6 | 1 | 13 | 33 | 40 | 13 | 0 |
| 7 | 1 | 12 | 32 | 41 | 15 | 0 |
| 8 | 0 | 11 | 31 | 41 | 16 | 0 |
| 9 | 0 | 11 | 30 | 41 | 17 | 0 |
| 10 | 0 | 10 | 29 | 41 | 19 | 0 |
| 11 | 0 | 10 | 28 | 41 | 20 | 0 |
| 12 | 0 | 10 | 28 | 41 | 21 | 0 |
| 13 | 0 | 9 | 27 | 41 | 23 | 0 |
| 14 | 0 | 9 | 26 | 41 | 24 | 0 |
| 15 | 0 | 8 | 25 | 41 | 26 | 0 |
| 16 | 0 | 8 | 24 | 40 | 27 | 0 |
| 17 | 0 | 7 | 23 | 40 | 29 | 0 |
| 18 | 0 | 7 | 22 | 39 | 31 | 0 |
| 19 | 0 | 6 | 21 | 39 | 33 | 0 |
| 20 | 0 | 6 | 20 | 38 | 35 | 1 |
| 21 | 0 | 5 | 19 | 38 | 37 | 1 |
| 22 | 0 | 5 | 18 | 37 | 39 | 1 |
| 23 | 0 | 5 | 17 | 36 | 40 | 1 |
| 24 | 0 | 5 | 16 | 36 | 42 | 2 |
| 25 | 0 | 4 | 15 | 35 | 44 | 2 |
| 26 | 0 | 4 | 14 | 34 | 46 | 2 |
| 27 | 0 | 4 | 13 | 32 | 48 | 3 |
| 28 | 0 | 4 | 12 | 31 | 49 | 3 |
| 29 | 0 | 4 | 12 | 30 | 51 | 3 |
| 30 | 0 | 4 | 11 | 29 | 52 | 4 |
| 31 | 0 | 4 | 11 | 28 | 53 | 4 |
Wind in July
Winds average 6 km/h in July, the calmest month.
Across July, daily wind ranges from about 6 km/h on the calmest days to 7 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) | 7 | 7 | 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 | 7 | calm |
| 2 | 7 | 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 36 min at the start of July to 14 hours by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 36 minutes over July. Sunrise moves from 4:21 AM to 4:42 AM, and sunset from 6:59 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) | 14.6 | 14.6 | 14.6 | 14.6 | 14.6 | 14.6 | 14.6 | 14.6 | 14.5 | 14.5 | 14.5 | 14.5 | 14.5 | 14.5 | 14.4 | 14.4 | 14.4 | 14.4 | 14.4 | 14.3 | 14.3 | 14.3 | 14.3 | 14.2 | 14.2 | 14.2 | 14.2 | 14.1 | 14.1 | 14.1 | 14.0 |
| Sunrise (AM) | 4:21 | 4:21 | 4:22 | 4:22 | 4:23 | 4:23 | 4:24 | 4:24 | 4:25 | 4:26 | 4:26 | 4:27 | 4:27 | 4:28 | 4:29 | 4:30 | 4:30 | 4:31 | 4:32 | 4:33 | 4:33 | 4:34 | 4:35 | 4:36 | 4:36 | 4:37 | 4:38 | 4:39 | 4:40 | 4:41 | 4:42 |
| Sunset (PM) | 6:59 | 6:59 | 6:59 | 6:59 | 6:58 | 6:58 | 6:58 | 6:58 | 6:58 | 6:57 | 6:57 | 6:57 | 6:56 | 6:56 | 6:55 | 6:55 | 6:54 | 6:54 | 6:53 | 6:52 | 6:52 | 6:51 | 6:50 | 6:50 | 6:49 | 6:48 | 6:47 | 6:46 | 6:46 | 6:45 | 6:44 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.6 | 4:21 | 6:59 |
| 2 | 14.6 | 4:21 | 6:59 |
| 3 | 14.6 | 4:22 | 6:59 |
| 4 | 14.6 | 4:22 | 6:59 |
| 5 | 14.6 | 4:23 | 6:58 |
| 6 | 14.6 | 4:23 | 6:58 |
| 7 | 14.6 | 4:24 | 6:58 |
| 8 | 14.6 | 4:24 | 6:58 |
| 9 | 14.5 | 4:25 | 6:58 |
| 10 | 14.5 | 4:26 | 6:57 |
| 11 | 14.5 | 4:26 | 6:57 |
| 12 | 14.5 | 4:27 | 6:57 |
| 13 | 14.5 | 4:27 | 6:56 |
| 14 | 14.5 | 4:28 | 6:56 |
| 15 | 14.4 | 4:29 | 6:55 |
| 16 | 14.4 | 4:30 | 6:55 |
| 17 | 14.4 | 4:30 | 6:54 |
| 18 | 14.4 | 4:31 | 6:54 |
| 19 | 14.4 | 4:32 | 6:53 |
| 20 | 14.3 | 4:33 | 6:52 |
| 21 | 14.3 | 4:33 | 6:52 |
| 22 | 14.3 | 4:34 | 6:51 |
| 23 | 14.3 | 4:35 | 6:50 |
| 24 | 14.2 | 4:36 | 6:50 |
| 25 | 14.2 | 4:36 | 6:49 |
| 26 | 14.2 | 4:37 | 6:48 |
| 27 | 14.2 | 4:38 | 6:47 |
| 28 | 14.1 | 4:39 | 6:46 |
| 29 | 14.1 | 4:40 | 6:46 |
| 30 | 14.1 | 4:41 | 6:45 |
| 31 | 14.0 | 4:42 | 6:44 |
Solar energy in July
Average shortwave solar energy reaching the ground each day in July, about 4.25 kWh/m².
For context, solar energy here swings from a low near 2.06 kWh/m² to a high of 5.34 kWh/m² in May across the year — July's 4.25 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) | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 | 4.5 | 4.5 | 4.5 | 4.5 | 4.6 | 4.6 |
| 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 | 4.2 | Bright |
| 2 | 4.2 | Bright |
| 3 | 4.2 | Bright |
| 4 | 4.2 | Bright |
| 5 | 4.2 | Bright |
| 6 | 4.2 | Bright |
| 7 | 4.2 | Bright |
| 8 | 4.2 | Bright |
| 9 | 4.1 | Bright |
| 10 | 4.1 | Bright |
| 11 | 4.1 | Bright |
| 12 | 4.1 | Bright |
| 13 | 4.1 | Bright |
| 14 | 4.1 | Bright |
| 15 | 4.1 | Bright |
| 16 | 4.2 | Bright |
| 17 | 4.2 | Bright |
| 18 | 4.2 | Bright |
| 19 | 4.2 | Bright |
| 20 | 4.2 | Bright |
| 21 | 4.3 | Bright |
| 22 | 4.3 | Bright |
| 23 | 4.3 | Bright |
| 24 | 4.4 | Bright |
| 25 | 4.4 | Bright |
| 26 | 4.5 | Bright |
| 27 | 4.5 | Bright |
| 28 | 4.5 | Bright |
| 29 | 4.5 | Bright |
| 30 | 4.6 | Bright |
| 31 | 4.6 | 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 March–October, 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 26°C and nights near 20°C. Pack rain gear. Worth having: light clothes. About 17 days see rain.
Sea temperature near Sendai in July
The nearest coast averages about 21°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 28 km away) is warmest in August at about 24°C and coldest in March near 9°C.
It's comfortable for a long swim from Jul 7 to Oct 10 — about 3.2 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 11 | 9 | 9 | 10 | 14 | 18 | 21 | 24 | 23 | 19 | 17 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 11 | Bracing |
| Feb | 9 | Bracing |
| Mar | 9 | Bracing |
| Apr | 10 | Bracing |
| May | 14 | Bracing |
| Jun | 18 | Cool |
| Jul | 21 | Refreshing |
| Aug | 24 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 19 | Cool |
| Nov | 17 | Cool |
| Dec | 14 | Bracing |
UV index in Sendai in July
Clear-sky midday UV in July peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Sendai peaks around August 16 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (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) | 2 | 3 | 4 | 6 | 8 | 8 | 8 | 9 | 8 | 5 | 3 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 4 | Moderate |
| Apr | 6 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 5 | High |
| Nov | 3 | Moderate |
| Dec | 2 | Low |
Where is Sendai?
Sendai sits at 38.3°N, 140.9°E, 53 m above sea level, in Japan. The nearest listed city is Natori-shi, 11 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 173 m around an average of 67 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 513 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,978 m.
The land around Sendai is covered by artificial surfaces (74%) and trees (24%) within 3 km, trees (44%) and artificial surfaces (29%) within 16 km, and trees (57%) and water (26%) 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 (38.2667°, 140.8667°, elevation 53 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).