Beach
Namaitaga-hama
Fukuoka · Japan · Pacific Ocean
33.9000, 130.9167 · Shimonoseki, 6 km
- 27°Sea · August
- 29°High · August
- 6.8 hSunshine · August
Your month at the beach
Namaitaga-hama in January
- 9°CAir, daytime high6°C at night
- 13°CSea temperature
- 3.0 hSunshine a day
- 11 daysRainy days in the month77 mm in total
- 23 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 | 12° | 9° | 10° |
| Sea | 16° | 13° | 12° |
| Sunshine a day | 3.2 h | 3.0 h | 4.0 h |
| Rainy days | 10 | 11 | 10 |
Namaitaga-hama in February
- 10°CAir, daytime high6°C at night
- 12°CSea temperature
- 4.0 hSunshine a day
- 10 daysRainy days in the month85 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?
| January | February | March | |
|---|---|---|---|
| Air, daytime high | 9° | 10° | 13° |
| Sea | 13° | 12° | 12° |
| Sunshine a day | 3.0 h | 4.0 h | 5.3 h |
| Rainy days | 11 | 10 | 13 |
Namaitaga-hama in March
- 13°CAir, daytime high8°C at night
- 12°CSea temperature
- 5.3 hSunshine a day
- 13 daysRainy days in the month120 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 | 10° | 13° | 17° |
| Sea | 12° | 12° | 14° |
| Sunshine a day | 4.0 h | 5.3 h | 6.2 h |
| Rainy days | 10 | 13 | 11 |
Namaitaga-hama in April
- 17°CAir, daytime high12°C at night
- 14°CSea temperature
- 6.2 hSunshine a day
- 11 daysRainy days in the month142 mm in total
- 19 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° | 17° | 21° |
| Sea | 12° | 14° | 17° |
| Sunshine a day | 5.3 h | 6.2 h | 6.5 h |
| Rainy days | 13 | 11 | 11 |
Namaitaga-hama in May
- 21°CAir, daytime high16°C at night
- 17°CSea temperature
- 6.5 hSunshine a day
- 11 daysRainy days in the month156 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?
| April | May | June | |
|---|---|---|---|
| Air, daytime high | 17° | 21° | 24° |
| Sea | 14° | 17° | 21° |
| Sunshine a day | 6.2 h | 6.5 h | 5.0 h |
| Rainy days | 11 | 11 | 15 |
Namaitaga-hama in June
- 24°CAir, daytime high20°C at night
- 21°CSea temperature
- 5.0 hSunshine a day
- 15 daysRainy days in the month265 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?
| May | June | July | |
|---|---|---|---|
| Air, daytime high | 21° | 24° | 28° |
| Sea | 17° | 21° | 25° |
| Sunshine a day | 6.5 h | 5.0 h | 5.5 h |
| Rainy days | 11 | 15 | 17 |
Namaitaga-hama in July
- 28°CAir, daytime high24°C at night
- 25°CSea temperature
- 5.5 hSunshine a day
- 17 daysRainy days in the month340 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?
| June | July | August | |
|---|---|---|---|
| Air, daytime high | 24° | 28° | 29° |
| Sea | 21° | 25° | 27° |
| Sunshine a day | 5.0 h | 5.5 h | 6.8 h |
| Rainy days | 15 | 17 | 16 |
Namaitaga-hama in August
- 29°CAir, daytime high25°C at night
- 27°CSea temperature
- 6.8 hSunshine a day
- 16 daysRainy days in the month192 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?
| July | August | September | |
|---|---|---|---|
| Air, daytime high | 28° | 29° | 26° |
| Sea | 25° | 27° | 26° |
| Sunshine a day | 5.5 h | 6.8 h | 5.2 h |
| Rainy days | 17 | 16 | 14 |
Namaitaga-hama in September
- 26°CAir, daytime high22°C at night
- 26°CSea temperature
- 5.2 hSunshine a day
- 14 daysRainy days in the month200 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?
| August | September | October | |
|---|---|---|---|
| Air, daytime high | 29° | 26° | 22° |
| Sea | 27° | 26° | 23° |
| Sunshine a day | 6.8 h | 5.2 h | 5.3 h |
| Rainy days | 16 | 14 | 9 |
Namaitaga-hama in October
- 22°CAir, daytime high18°C at night
- 23°CSea temperature
- 5.3 hSunshine a day
- 9 daysRainy days in the month107 mm in total
- 19 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 | 26° | 22° | 17° |
| Sea | 26° | 23° | 19° |
| Sunshine a day | 5.2 h | 5.3 h | 4.2 h |
| Rainy days | 14 | 9 | 10 |
Namaitaga-hama in November
- 17°CAir, daytime high13°C at night
- 19°CSea temperature
- 4.2 hSunshine a day
- 10 daysRainy days in the month88 mm in total
- 19 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° | 12° |
| Sea | 23° | 19° | 16° |
| Sunshine a day | 5.3 h | 4.2 h | 3.2 h |
| Rainy days | 9 | 10 | 10 |
Namaitaga-hama in December
- 12°CAir, daytime high8°C at night
- 16°CSea temperature
- 3.2 hSunshine a day
- 10 daysRainy days in the month86 mm in total
- 22 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° | 12° | 9° |
| Sea | 19° | 16° | 13° |
| Sunshine a day | 4.2 h | 3.2 h | 3.0 h |
| Rainy days | 10 | 10 | 11 |
Warmest sea of the year: August (27.4 °C) · most sunshine: August (6.8 h a day).
The beach itself
- 27Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
- 12 kmAirport: Kitakyushu Airport (KKJ)In a straight line; by road it is further Car hire at FUK airport (Fukuoka)
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 10.4 °C — 2.8 °C below the 1991–2020 average.
1991–2020 average: 13.2 °C
1991–2020 average: 9.4 °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 8.3 °C — 3.4 °C below the 1991–2020 average.
1991–2020 average: 11.8 °C
1991–2020 average: 10.3 °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 10.3 °C — 1.8 °C below the 1991–2020 average.
1991–2020 average: 12.2 °C
1991–2020 average: 12.9 °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 13.8 °C — about the same as the 1991–2020 average.
1991–2020 average: 14.1 °C
1991–2020 average: 17.0 °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 17.6 °C — about the same as the 1991–2020 average.
1991–2020 average: 17.4 °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.
June from 2020 to 2025
In June 2025 the sea averaged 21.9 °C — 0.6 °C above the 1991–2020 average.
1991–2020 average: 21.3 °C
1991–2020 average: 24.2 °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 — 2.4 °C above the 1991–2020 average.
1991–2020 average: 25.1 °C
1991–2020 average: 27.7 °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 29.0 °C — 1.6 °C above the 1991–2020 average.
1991–2020 average: 27.4 °C
1991–2020 average: 29.4 °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 28.7 °C — 2.8 °C above the 1991–2020 average.
1991–2020 average: 25.9 °C
1991–2020 average: 26.3 °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 25.1 °C — 2.3 °C above the 1991–2020 average.
1991–2020 average: 22.8 °C
1991–2020 average: 21.9 °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 19.4 °C — about the same as the 1991–2020 average.
1991–2020 average: 19.4 °C
1991–2020 average: 17.1 °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 14.3 °C — 1.8 °C below the 1991–2020 average.
1991–2020 average: 16.1 °C
1991–2020 average: 11.8 °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
- Jan13°3 h77 mm
- Feb12°4 h85 mm
- Mar12°5 h120 mm
- Apr14°6 h142 mm
- May17°6 h156 mm
- Jun21°5 h265 mm
- Jul25°6 h340 mm
- Aug27°7 h192 mm
- Sep26°5 h200 mm
- Oct23°5 h107 mm
- Nov19°4 h88 mm
- Dec16°3 h86 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 Namaitaga-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 | 9 | 6 | 13 | 77 | 11 | 3.0 | 23 |
| February | 10 | 6 | 12 | 85 | 10 | 4.0 | 21 |
| March | 13 | 8 | 12 | 120 | 13 | 5.3 | 21 |
| April | 17 | 12 | 14 | 142 | 11 | 6.2 | 19 |
| May | 21 | 16 | 17 | 156 | 11 | 6.5 | 16 |
| June | 24 | 20 | 21 | 265 | 15 | 5.0 | 14 |
| July | 28 | 24 | 25 | 340 | 17 | 5.5 | 15 |
| Augustwarmest sea | 29 | 25 | 27 | 192 | 16 | 6.8 | 15 |
| September | 26 | 22 | 26 | 200 | 14 | 5.2 | 18 |
| October | 22 | 18 | 23 | 107 | 9 | 5.3 | 19 |
| November | 17 | 13 | 19 | 88 | 10 | 4.2 | 19 |
| December | 12 | 8 | 16 | 86 | 10 | 3.2 | 22 |
Swipe sideways to see the other columns.
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 | 29 km away |
| Sea temperature | NOAA OISST v2.1, 1991–2020 | 19 km away |
| 2020–2025, month by month | NASA POWER · NOAA OISST v2.1 | 29 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 |