Bay
Shinagawa-wan
Japan · Sea of Japan
35.6168, 139.7630 · Tennōzu, 1 km
- 26°Sea · August
- 30°High · August
- 6.7 hSunshine · August
Your month at the beach
Shinagawa-wan in January
- 9°CAir, daytime high1°C at night
- 14°CSea temperature
- 5.1 hSunshine a day
- 6 daysRainy days in the month80 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| December | January | February | |
|---|---|---|---|
| Air, daytime high | 11° | 9° | 10° |
| Sea | 16° | 14° | 13° |
| Sunshine a day | 4.6 h | 5.1 h | 4.7 h |
| Rainy days | 7 | 6 | 7 |
Shinagawa-wan in February
- 10°CAir, daytime high1°C at night
- 13°CSea temperature
- 4.7 hSunshine a day
- 7 daysRainy days in the month75 mm in total
- 16 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| January | February | March | |
|---|---|---|---|
| Air, daytime high | 9° | 10° | 13° |
| Sea | 14° | 13° | 13° |
| Sunshine a day | 5.1 h | 4.7 h | 5.0 h |
| Rainy days | 6 | 7 | 12 |
Shinagawa-wan in March
- 13°CAir, daytime high4°C at night
- 13°CSea temperature
- 5.0 hSunshine a day
- 12 daysRainy days in the month124 mm in total
- 17 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| February | March | April | |
|---|---|---|---|
| Air, daytime high | 10° | 13° | 18° |
| Sea | 13° | 13° | 15° |
| Sunshine a day | 4.7 h | 5.0 h | 5.5 h |
| Rainy days | 7 | 12 | 12 |
Shinagawa-wan in April
- 18°CAir, daytime high9°C at night
- 15°CSea temperature
- 5.5 hSunshine a day
- 12 daysRainy days in the month135 mm in total
- 17 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| March | April | May | |
|---|---|---|---|
| Air, daytime high | 13° | 18° | 23° |
| Sea | 13° | 15° | 18° |
| Sunshine a day | 5.0 h | 5.5 h | 5.6 h |
| Rainy days | 12 | 12 | 12 |
Shinagawa-wan in May
- 23°CAir, daytime high14°C at night
- 18°CSea temperature
- 5.6 hSunshine a day
- 12 daysRainy days in the month148 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| April | May | June | |
|---|---|---|---|
| Air, daytime high | 18° | 23° | 26° |
| Sea | 15° | 18° | 21° |
| Sunshine a day | 5.5 h | 5.6 h | 4.4 h |
| Rainy days | 12 | 12 | 15 |
Shinagawa-wan in June
- 26°CAir, daytime high18°C at night
- 21°CSea temperature
- 4.4 hSunshine a day
- 15 daysRainy days in the month185 mm in total
- 13 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| May | June | July | |
|---|---|---|---|
| Air, daytime high | 23° | 26° | 29° |
| Sea | 18° | 21° | 23° |
| Sunshine a day | 5.6 h | 4.4 h | 5.4 h |
| Rainy days | 12 | 15 | 15 |
Shinagawa-wan in July
- 29°CAir, daytime high22°C at night
- 23°CSea temperature
- 5.4 hSunshine a day
- 15 daysRainy days in the month152 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| June | July | August | |
|---|---|---|---|
| Air, daytime high | 26° | 29° | 30° |
| Sea | 21° | 23° | 26° |
| Sunshine a day | 4.4 h | 5.4 h | 6.7 h |
| Rainy days | 15 | 15 | 13 |
Shinagawa-wan in August
- 30°CAir, daytime high23°C at night
- 26°CSea temperature
- 6.7 hSunshine a day
- 13 daysRainy days in the month134 mm in total
- 13 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| July | August | September | |
|---|---|---|---|
| Air, daytime high | 29° | 30° | 27° |
| Sea | 23° | 26° | 25° |
| Sunshine a day | 5.4 h | 6.7 h | 4.8 h |
| Rainy days | 15 | 13 | 15 |
Shinagawa-wan in September
- 27°CAir, daytime high20°C at night
- 25°CSea temperature
- 4.8 hSunshine a day
- 15 daysRainy days in the month211 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| August | September | October | |
|---|---|---|---|
| Air, daytime high | 30° | 27° | 22° |
| Sea | 26° | 25° | 22° |
| Sunshine a day | 6.7 h | 4.8 h | 3.7 h |
| Rainy days | 13 | 15 | 13 |
Shinagawa-wan in October
- 22°CAir, daytime high14°C at night
- 22°CSea temperature
- 3.7 hSunshine a day
- 13 daysRainy days in the month246 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| September | October | November | |
|---|---|---|---|
| Air, daytime high | 27° | 22° | 17° |
| Sea | 25° | 22° | 19° |
| Sunshine a day | 4.8 h | 3.7 h | 3.9 h |
| Rainy days | 15 | 13 | 10 |
Shinagawa-wan in November
- 17°CAir, daytime high9°C at night
- 19°CSea temperature
- 3.9 hSunshine a day
- 10 daysRainy days in the month120 mm in total
- 13 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| October | November | December | |
|---|---|---|---|
| Air, daytime high | 22° | 17° | 11° |
| Sea | 22° | 19° | 16° |
| Sunshine a day | 3.7 h | 3.9 h | 4.6 h |
| Rainy days | 13 | 10 | 7 |
Shinagawa-wan in December
- 11°CAir, daytime high3°C at night
- 16°CSea temperature
- 4.6 hSunshine a day
- 7 daysRainy days in the month83 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
And a month earlier or later?
| November | December | January | |
|---|---|---|---|
| Air, daytime high | 17° | 11° | 9° |
| Sea | 19° | 16° | 14° |
| Sunshine a day | 3.9 h | 4.6 h | 5.1 h |
| Rainy days | 10 | 7 | 6 |
Warmest sea of the year: August (25.9 °C) · most sunshine: August (6.7 h a day).
The beach itself
- 132Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 8 kmAirport: Tokyo Haneda International Airport (HND)In a straight line; by road it is further Car hire at HND airport (Tokyo)
No reliable information yet on: bathing water quality, wheelchair access, lifeguards.
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
January from 2020 to 2025
In January 2025 the sea averaged 11.0 °C — 2.6 °C below the 1991–2020 average.
1991–2020 average: 13.6 °C
1991–2020 average: 8.7 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
February from 2020 to 2025
In February 2025 the sea averaged 10.8 °C — 1.7 °C below the 1991–2020 average.
1991–2020 average: 12.5 °C
1991–2020 average: 9.9 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
March from 2020 to 2025
In March 2025 the sea averaged 13.6 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 13.2 °C
1991–2020 average: 13.4 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
April from 2020 to 2025
In April 2025 the sea averaged 15.4 °C — 0.5 °C above the 1991–2020 average.
1991–2020 average: 14.9 °C
1991–2020 average: 18.2 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
May from 2020 to 2025
In May 2025 the sea averaged 19.3 °C — 1.4 °C above the 1991–2020 average.
1991–2020 average: 17.9 °C
1991–2020 average: 22.6 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
June from 2020 to 2025
In June 2025 the sea averaged 23.8 °C — 2.9 °C above the 1991–2020 average.
1991–2020 average: 20.9 °C
1991–2020 average: 25.5 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
July from 2020 to 2025
In July 2025 the sea averaged 27.5 °C — 4.1 °C above the 1991–2020 average.
1991–2020 average: 23.4 °C
1991–2020 average: 29.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
August from 2020 to 2025
In August 2025 the sea averaged 28.4 °C — 2.5 °C above the 1991–2020 average.
1991–2020 average: 25.9 °C
1991–2020 average: 30.5 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
September from 2020 to 2025
In September 2025 the sea averaged 27.7 °C — 3.0 °C above the 1991–2020 average.
1991–2020 average: 24.7 °C
1991–2020 average: 27.1 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
October from 2020 to 2025
In October 2025 the sea averaged 22.3 °C — 0.7 °C above the 1991–2020 average.
1991–2020 average: 21.6 °C
1991–2020 average: 21.8 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
November from 2020 to 2025
In November 2025 the sea averaged 16.4 °C — 2.5 °C below the 1991–2020 average.
1991–2020 average: 18.9 °C
1991–2020 average: 16.7 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
December from 2020 to 2025
In December 2025 the sea averaged 13.9 °C — 2.1 °C below the 1991–2020 average.
1991–2020 average: 16.0 °C
1991–2020 average: 11.3 °C
Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.
When to go
1991–2020 averagesThe year at a glance
- Jan14°5 h80 mm
- Feb13°5 h75 mm
- Mar13°5 h124 mm
- Apr15°6 h135 mm
- May18°6 h148 mm
- Jun21°4 h185 mm
- Jul23°5 h152 mm
- Aug26°7 h134 mm
- Sep25°5 h211 mm
- Oct22°4 h246 mm
- Nov19°4 h120 mm
- Dec16°5 h83 mm
Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.
Sea temperature
1991–2020 averagesClimate through the year
1991–2020 averagesRain
Sunshine
Sunshine hours are estimated from measured solar radiation, not observed directly.
Month by month
1991–2020 averagesEvery month at Shinagawa-wan: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 9 | 1 | 14 | 80 | 6 | 5.1 | 15 |
| February | 10 | 1 | 13 | 75 | 7 | 4.7 | 16 |
| March | 13 | 4 | 13 | 124 | 12 | 5.0 | 17 |
| April | 18 | 9 | 15 | 135 | 12 | 5.5 | 17 |
| May | 23 | 14 | 18 | 148 | 12 | 5.6 | 15 |
| June | 26 | 18 | 21 | 185 | 15 | 4.4 | 13 |
| July | 29 | 22 | 23 | 152 | 15 | 5.4 | 14 |
| Augustwarmest sea | 30 | 23 | 26 | 134 | 13 | 6.7 | 13 |
| September | 27 | 20 | 25 | 211 | 15 | 4.8 | 14 |
| October | 22 | 14 | 22 | 246 | 13 | 3.7 | 14 |
| November | 17 | 9 | 19 | 120 | 10 | 3.9 | 13 |
| December | 11 | 3 | 16 | 83 | 7 | 4.6 | 14 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
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Plan your trip
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
About these numbers
Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.
| What | Where it comes from | Nearest measurement |
|---|---|---|
| Air, rain and sunshine | NASA POWER | 25 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 10 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 25 km away |
| Lifeguards and places to stay | OpenStreetMap | within 1–5 km |
| Nearest airport | OurAirports | straight-line distance |
| Image at the top | Sentinel-2 cloudless (EOX) | at this spot |