Beach
Yorii Hama
Niigata · Japan · Sea of Japan
37.9304, 139.0375 · Niigata, 1 km
- 26°Sea · August
- 28°High · August
- 6.6 hSunshine · August
Your month at the beach
Yorii Hama in January
- 6°CAir, daytime high4°C at night
- 12°CSea temperature
- 1.2 hSunshine a day
- 25 daysRainy days in the month166 mm in total
- 27 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 | 9° | 6° | 6° |
| Sea | 15° | 12° | 10° |
| Sunshine a day | 1.0 h | 1.2 h | 2.5 h |
| Rainy days | 25 | 25 | 20 |
Yorii Hama in February
- 6°CAir, daytime high3°C at night
- 10°CSea temperature
- 2.5 hSunshine a day
- 20 daysRainy days in the month104 mm in total
- 25 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 | 6° | 6° | 8° |
| Sea | 12° | 10° | 10° |
| Sunshine a day | 1.2 h | 2.5 h | 4.5 h |
| Rainy days | 25 | 20 | 18 |
Yorii Hama in March
- 8°CAir, daytime high5°C at night
- 10°CSea temperature
- 4.5 hSunshine a day
- 18 daysRainy days in the month107 mm in total
- 21 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 | 6° | 8° | 12° |
| Sea | 10° | 10° | 11° |
| Sunshine a day | 2.5 h | 4.5 h | 6.0 h |
| Rainy days | 20 | 18 | 13 |
Yorii Hama in April
- 12°CAir, daytime high8°C at night
- 11°CSea temperature
- 6.0 hSunshine a day
- 13 daysRainy days in the month95 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?
| March | April | May | |
|---|---|---|---|
| Air, daytime high | 8° | 12° | 17° |
| Sea | 10° | 11° | 15° |
| Sunshine a day | 4.5 h | 6.0 h | 6.3 h |
| Rainy days | 18 | 13 | 12 |
Yorii Hama in May
- 17°CAir, daytime high13°C at night
- 15°CSea temperature
- 6.3 hSunshine a day
- 12 daysRainy days in the month85 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?
| April | May | June | |
|---|---|---|---|
| Air, daytime high | 12° | 17° | 22° |
| Sea | 11° | 15° | 19° |
| Sunshine a day | 6.0 h | 6.3 h | 6.3 h |
| Rainy days | 13 | 12 | 12 |
Yorii Hama in June
- 22°CAir, daytime high18°C at night
- 19°CSea temperature
- 6.3 hSunshine a day
- 12 daysRainy days in the month112 mm in total
- 11 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 | 17° | 22° | 25° |
| Sea | 15° | 19° | 23° |
| Sunshine a day | 6.3 h | 6.3 h | 5.0 h |
| Rainy days | 12 | 12 | 17 |
Yorii Hama in July
- 25°CAir, daytime high22°C at night
- 23°CSea temperature
- 5.0 hSunshine a day
- 17 daysRainy days in the month213 mm in total
- 11 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 | 22° | 25° | 28° |
| Sea | 19° | 23° | 26° |
| Sunshine a day | 6.3 h | 5.0 h | 6.6 h |
| Rainy days | 12 | 17 | 15 |
Yorii Hama in August
- 28°CAir, daytime high25°C at night
- 26°CSea temperature
- 6.6 hSunshine a day
- 15 daysRainy days in the month145 mm in total
- 12 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 | 25° | 28° | 24° |
| Sea | 23° | 26° | 25° |
| Sunshine a day | 5.0 h | 6.6 h | 5.5 h |
| Rainy days | 17 | 15 | 16 |
Yorii Hama in September
- 24°CAir, daytime high22°C at night
- 25°CSea temperature
- 5.5 hSunshine a day
- 16 daysRainy days in the month141 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 | 28° | 24° | 19° |
| Sea | 26° | 25° | 22° |
| Sunshine a day | 6.6 h | 5.5 h | 4.6 h |
| Rainy days | 15 | 16 | 16 |
Yorii Hama in October
- 19°CAir, daytime high16°C at night
- 22°CSea temperature
- 4.6 hSunshine a day
- 16 daysRainy days in the month151 mm in total
- 18 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 | 24° | 19° | 14° |
| Sea | 25° | 22° | 18° |
| Sunshine a day | 5.5 h | 4.6 h | 2.6 h |
| Rainy days | 16 | 16 | 20 |
Yorii Hama in November
- 14°CAir, daytime high11°C at night
- 18°CSea temperature
- 2.6 hSunshine a day
- 20 daysRainy days in the month168 mm in total
- 21 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 | 19° | 14° | 9° |
| Sea | 22° | 18° | 15° |
| Sunshine a day | 4.6 h | 2.6 h | 1.0 h |
| Rainy days | 16 | 20 | 25 |
Yorii Hama in December
- 9°CAir, daytime high6°C at night
- 15°CSea temperature
- 1.0 hSunshine a day
- 25 daysRainy days in the month215 mm in total
- 26 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 | 14° | 9° | 6° |
| Sea | 18° | 15° | 12° |
| Sunshine a day | 2.6 h | 1.0 h | 1.2 h |
| Rainy days | 20 | 25 | 25 |
Warmest sea of the year: August (26.3 °C) · most sunshine: August (6.6 h a day).
The beach itself
- 64Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 7 kmAirport: Niigata Airport (KIJ)In a straight line; by road it is further Car hire in Japan
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 13.1 °C — 0.8 °C above the 1991–2020 average.
1991–2020 average: 12.3 °C
1991–2020 average: 6.1 °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 11.1 °C — 0.7 °C above the 1991–2020 average.
1991–2020 average: 10.4 °C
1991–2020 average: 6.1 °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 10.2 °C — 0.5 °C above the 1991–2020 average.
1991–2020 average: 9.7 °C
1991–2020 average: 8.2 °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 11.4 °C — 0.5 °C above the 1991–2020 average.
1991–2020 average: 10.9 °C
1991–2020 average: 12.4 °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 14.9 °C — 0.3 °C above the 1991–2020 average.
1991–2020 average: 14.6 °C
1991–2020 average: 17.4 °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 20.4 °C — 1.0 °C above the 1991–2020 average.
1991–2020 average: 19.4 °C
1991–2020 average: 21.6 °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 26.7 °C — 3.6 °C above the 1991–2020 average.
1991–2020 average: 23.1 °C
1991–2020 average: 25.3 °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 28.3 °C — 2.0 °C above the 1991–2020 average.
1991–2020 average: 26.3 °C
1991–2020 average: 27.5 °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 27.4 °C — 2.3 °C above the 1991–2020 average.
1991–2020 average: 25.1 °C
1991–2020 average: 24.5 °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 23.8 °C — 2.2 °C above the 1991–2020 average.
1991–2020 average: 21.6 °C
1991–2020 average: 19.4 °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 18.6 °C — 0.4 °C above the 1991–2020 average.
1991–2020 average: 18.2 °C
1991–2020 average: 14.3 °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 15.8 °C — 0.7 °C above the 1991–2020 average.
1991–2020 average: 15.1 °C
1991–2020 average: 9.2 °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
- Jan12°1 h166 mm
- Feb10°2 h104 mm
- Mar10°4 h107 mm
- Apr11°6 h95 mm
- May15°6 h85 mm
- Jun19°6 h112 mm
- Jul23°5 h213 mm
- Aug26°7 h145 mm
- Sep25°6 h141 mm
- Oct22°5 h151 mm
- Nov18°3 h168 mm
- Dec15°1 h215 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 Yorii Hama: air, sea, rain and sunshine. Averages for 1991–2020.
| Month | High°C | Low°C | Sea°C | Rainmm | Rainy daysdays | Sunshineh/day | Windkm/h |
|---|---|---|---|---|---|---|---|
| January | 6 | 4 | 12 | 166 | 25 | 1.2 | 27 |
| February | 6 | 3 | 10 | 104 | 20 | 2.5 | 25 |
| March | 8 | 5 | 10 | 107 | 18 | 4.5 | 21 |
| April | 12 | 8 | 11 | 95 | 13 | 6.0 | 16 |
| May | 17 | 13 | 15 | 85 | 12 | 6.3 | 13 |
| June | 22 | 18 | 19 | 112 | 12 | 6.3 | 11 |
| July | 25 | 22 | 23 | 213 | 17 | 5.0 | 11 |
| Augustwarmest sea | 28 | 25 | 26 | 145 | 15 | 6.6 | 12 |
| September | 24 | 22 | 25 | 141 | 16 | 5.5 | 14 |
| October | 19 | 16 | 22 | 151 | 16 | 4.6 | 18 |
| November | 14 | 11 | 18 | 168 | 20 | 2.6 | 21 |
| December | 9 | 6 | 15 | 215 | 25 | 1.0 | 26 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
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 | 26 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 16 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 26 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 |