Beach
Ōmori Hama
Hokkaido · Japan · Sea of Japan
41.7660, 140.7325 · Hakodate, 1 km
- 22°Sea · August
- 24°High · August
- 6.2 hSunshine · May
Your month at the beach
Ōmori Hama in January
- -1°CAir, daytime high-4°C at night
- 10°CSea temperature
- 1.7 hSunshine a day
- 21 daysRainy days in the month82 mm in total
- 21 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in February
- 0°CAir, daytime high-4°C at night
- 7°CSea temperature
- 2.5 hSunshine a day
- 16 daysRainy days in the month69 mm in total
- 22 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in March
- 3°CAir, daytime high-2°C at night
- 7°CSea temperature
- 4.3 hSunshine a day
- 14 daysRainy days in the month68 mm in total
- 19 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in April
- 9°CAir, daytime high2°C at night
- 9°CSea temperature
- 5.8 hSunshine a day
- 10 daysRainy days in the month74 mm in total
- 15 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in May
- 14°CAir, daytime high7°C at night
- 11°CSea temperature
- 6.2 hSunshine a day
- 11 daysRainy days in the month85 mm in total
- 12 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in June
- 19°CAir, daytime high12°C at night
- 15°CSea temperature
- 5.4 hSunshine a day
- 10 daysRainy days in the month85 mm in total
- 10 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in July
- 22°CAir, daytime high16°C at night
- 19°CSea temperature
- 4.4 hSunshine a day
- 12 daysRainy days in the month129 mm in total
- 10 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in August
- 24°CAir, daytime high19°C at night
- 22°CSea temperature
- 4.8 hSunshine a day
- 13 daysRainy days in the month151 mm in total
- 10 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in September
- 21°CAir, daytime high16°C at night
- 22°CSea temperature
- 5.2 hSunshine a day
- 14 daysRainy days in the month130 mm in total
- 12 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in October
- 15°CAir, daytime high10°C at night
- 19°CSea temperature
- 4.4 hSunshine a day
- 15 daysRainy days in the month105 mm in total
- 14 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in November
- 8°CAir, daytime high3°C at night
- 15°CSea temperature
- 2.2 hSunshine a day
- 17 daysRainy days in the month116 mm in total
- 17 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
Ōmori Hama in December
- 2°CAir, daytime high-2°C at night
- 12°CSea temperature
- 1.3 hSunshine a day
- 20 daysRainy days in the month107 mm in total
- 20 km/hAverage wind
Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.
The beach itself
- 85Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 7 kmAirport: Hakodate Airport (HKD)In a straight line; by road it is further
No reliable information yet on: bathing water quality, wheelchair access, lifeguards.
January from 2020 to 2025
In January 2025 the sea averaged 11.4 °C — 1.7 °C above the 1991–2020 average.
1991–2020 average: 9.7 °C
1991–2020 average: -0.9 °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 10.4 °C — 2.9 °C above the 1991–2020 average.
1991–2020 average: 7.5 °C
1991–2020 average: -0.4 °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 9.2 °C — 1.7 °C above the 1991–2020 average.
1991–2020 average: 7.5 °C
1991–2020 average: 3.4 °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 9.8 °C — 1.1 °C above the 1991–2020 average.
1991–2020 average: 8.7 °C
1991–2020 average: 8.9 °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 12.0 °C — 1.1 °C above the 1991–2020 average.
1991–2020 average: 10.9 °C
1991–2020 average: 14.2 °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 14.6 °C — about the same as the 1991–2020 average.
1991–2020 average: 14.6 °C
1991–2020 average: 18.7 °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 21.5 °C — 2.6 °C above the 1991–2020 average.
1991–2020 average: 18.9 °C
1991–2020 average: 22.2 °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 25.8 °C — 3.3 °C above the 1991–2020 average.
1991–2020 average: 22.5 °C
1991–2020 average: 24.1 °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 24.6 °C — 2.2 °C above the 1991–2020 average.
1991–2020 average: 22.4 °C
1991–2020 average: 21.1 °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 21.3 °C — 2.3 °C above the 1991–2020 average.
1991–2020 average: 19.0 °C
1991–2020 average: 15.2 °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 16.3 °C — 0.9 °C above the 1991–2020 average.
1991–2020 average: 15.4 °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.
December from 2020 to 2025
In December 2025 the sea averaged 13.7 °C — 1.2 °C above the 1991–2020 average.
1991–2020 average: 12.5 °C
1991–2020 average: 1.5 °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
- Jan10°2 h82 mm
- Feb7°2 h69 mm
- Mar7°4 h68 mm
- Apr9°6 h74 mm
- May11°6 h85 mm
- Jun15°5 h85 mm
- Jul19°4 h129 mm
- Aug22°5 h151 mm
- Sep22°5 h130 mm
- Oct19°4 h105 mm
- Nov15°2 h116 mm
- Dec12°1 h107 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 Ōmori 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 | -1 | -4 | 10 | 82 | 21 | 1.7 | 21 |
| February | 0 | -4 | 7 | 69 | 16 | 2.5 | 22 |
| March | 3 | -2 | 7 | 68 | 14 | 4.3 | 19 |
| April | 9 | 2 | 9 | 74 | 10 | 5.8 | 15 |
| May | 14 | 7 | 11 | 85 | 11 | 6.2 | 12 |
| June | 19 | 12 | 15 | 85 | 10 | 5.4 | 10 |
| July | 22 | 16 | 19 | 129 | 12 | 4.4 | 10 |
| Augustwarmest sea | 24 | 19 | 22 | 151 | 13 | 4.8 | 10 |
| September | 21 | 16 | 22 | 130 | 14 | 5.2 | 12 |
| October | 15 | 10 | 19 | 105 | 15 | 4.4 | 14 |
| November | 8 | 3 | 15 | 116 | 17 | 2.2 | 17 |
| December | 2 | -2 | 12 | 107 | 20 | 1.3 | 20 |
Swipe sideways to see the other columns.
Photos
Photos shared by their authors on Wikimedia Commons, with its colours adjusted.
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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 | 28 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 18 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 28 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 |