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Best time to visit Ogasawara Islands

The best time to visit Ogasawara Islands is January–March, judged on twenty years of weather records and the events worth going for.

Ogasawara Islands, Tokyo, Japan

°C

mm

−10°0°10°20°30°40°
0100200300400500
  • Average daily high and low
  • Precipitation
  • Good month
  • Best month
  • Made good or best by an event
Average daily high and low temperature, average precipitation and each month's verdict
MonthAverage daily highAverage daily lowPrecipitationVerdict
January19.7 °C / 67 °F17.8 °C / 64 °F62 mm / 2.4 inbest month
February19.4 °C / 67 °F17.5 °C / 64 °F46 mm / 1.8 inbest month
March20.3 °C / 69 °F18.5 °C / 65 °F64 mm / 2.5 inbest month
April21.6 °C / 71 °F20.1 °C / 68 °F117 mm / 4.6 ingood month
May23.7 °C / 75 °F22.5 °C / 73 °F155 mm / 6.1 ingood month
June26.3 °C / 79 °F25.2 °C / 77 °F96 mm / 3.8 inneither best nor good
July27.9 °C / 82 °F26.7 °C / 80 °F77 mm / 3 inneither best nor good
August28.1 °C / 83 °F26.9 °C / 80 °F126 mm / 5 inneither best nor good
September28 °C / 82 °F26.7 °C / 80 °F133 mm / 5.2 inneither best nor good
October26.9 °C / 80 °F25.7 °C / 78 °F149 mm / 5.8 inneither best nor good
November24.8 °C / 77 °F23.4 °C / 74 °F114 mm / 4.5 ingood month
December22.1 °C / 72 °F20.3 °C / 69 °F129 mm / 5.1 ingood month
Good and best months depend on more than temperature, rain and events. How they are chosen

Each activity on this page has its own good and best months, rated on twenty years of daily weather records. Which measures count, and how much, depends on the activity: humidity for exploring outdoors, wind for the beach, hiking and skiing, snow for skiing alone. Between them, the activities are rated on:

  • Daytime highs
  • Night-time lows
  • How warm it feels
  • Humidity
  • How much of the day is sunny
  • Hours of daylight
  • Monthly rainfall
  • How many days it rains
  • Days of heavy rain
  • Wind
  • Snowfall and days with snow
  • Major events, such as festivals

The chart shows the good and best months for exploring outdoors.

The event icon marks a month that an event lifts to good or best, such as a festival or a natural spectacle. Choose “Weather only” in the toolbar to rate the months on weather alone.

Best months by activity

Exploring outdoors

Mild days and nights, mostly dry and bright. The default for 'when should I go'.

  1. JJanuary: best
  2. FFebruary: best
  3. MMarch: best
  4. AApril: good
  5. MMay: good
  6. JJune: neither
  7. JJuly: neither
  8. AAugust: neither
  9. SSeptember: neither
  10. OOctober: neither
  11. NNovember: good
  12. DDecember: good
Best
January–March
Good
April–May, November–December
Why these months

  • January · best

    In its favour: feels like (high) 17.2 °C / 63 °F, average daily high 19.7 °C / 67 °F, share of daylight that is sunny 72%, precipitation 62 mm / 2.4 in, days with heavy rain 2 days, wet days 8.2 days, average daily low 17.8 °C / 64 °F, relative humidity 65%.

  • February · best

    In its favour: feels like (high) 17.4 °C / 63 °F, average daily high 19.4 °C / 67 °F, precipitation 46 mm / 1.8 in, share of daylight that is sunny 78%, wet days 6.1 days, days with heavy rain 1.1 days, average daily low 17.5 °C / 64 °F, relative humidity 68%.

  • March · best

    In its favour: feels like (high) 19.4 °C / 67 °F, average daily high 20.3 °C / 69 °F, share of daylight that is sunny 79%, precipitation 64 mm / 2.5 in, days with heavy rain 1.7 days, wet days 8.5 days, average daily low 18.5 °C / 65 °F, relative humidity 72%.

  • April · good

    In its favour: feels like (high) 22.2 °C / 72 °F, average daily high 21.6 °C / 71 °F, share of daylight that is sunny 76%, precipitation 117 mm / 4.6 in, days with heavy rain 3.5 days, wet days 10.6 days, average daily low 20.1 °C / 68 °F.

    Against: relative humidity 79%.

  • May · good

    In its favour: feels like (high) 26.4 °C / 80 °F, average daily high 23.7 °C / 75 °F, share of daylight that is sunny 77%, wet days 11.9 days, days with heavy rain 4.5 days.

    Against: precipitation 155 mm / 6.1 in, relative humidity 86%, average daily low 22.5 °C / 73 °F.

  • November · good

    In its favour: feels like (high) 25.9 °C / 79 °F, average daily high 24.8 °C / 77 °F, share of daylight that is sunny 79%, precipitation 114 mm / 4.5 in, days with heavy rain 3.4 days, wet days 11.4 days, relative humidity 75%.

    Against: average daily low 23.4 °C / 74 °F.

  • December · good

    In its favour: feels like (high) 21.1 °C / 70 °F, average daily high 22.1 °C / 72 °F, share of daylight that is sunny 65%, precipitation 129 mm / 5.1 in, days with heavy rain 3.7 days, wet days 11 days, relative humidity 69%, average daily low 20.3 °C / 69 °F.

Beach and swimming

Hot, dry and sunny. Penalises the monsoon hard.

  1. JJanuary: neither
  2. FFebruary: neither
  3. MMarch: neither
  4. AApril: neither
  5. MMay: neither
  6. JJune: good
  7. JJuly: good
  8. AAugust: neither
  9. SSeptember: neither
  10. OOctober: neither
  11. NNovember: neither
  12. DDecember: neither
Good
June–July
Why these months

  • June · good

    In its favour: average daily high 26.3 °C / 79 °F, share of daylight that is sunny 80%, feels like (high) 30.9 °C / 88 °F, days with heavy rain 2.9 days, average daily low 25.2 °C / 77 °F, wind (daily max) 24 km/h / 15 mph.

    Against: precipitation 96 mm / 3.8 in, wet days 9.8 days.

  • July · good

    In its favour: average daily high 27.9 °C / 82 °F, share of daylight that is sunny 89%, feels like (high) 33 °C / 91 °F, precipitation 77 mm / 3 in, days with heavy rain 1.7 days, wind (daily max) 23 km/h / 14 mph, average daily low 26.7 °C / 80 °F.

    Against: wet days 11.4 days.

Hiking and trekking

Cool enough to climb in, dry enough to enjoy, long enough days.

  1. JJanuary: best
  2. FFebruary: best
  3. MMarch: best
  4. AApril: good
  5. MMay: neither
  6. JJune: neither
  7. JJuly: neither
  8. AAugust: neither
  9. SSeptember: neither
  10. OOctober: neither
  11. NNovember: neither
  12. DDecember: neither
Best
January–March
Good
April
Why these months

  • January · best

    In its favour: average daily high 19.7 °C / 67 °F, precipitation 62 mm / 2.4 in, wet days 8.2 days, days with heavy rain 2 days, feels like (high) 17.2 °C / 63 °F, share of daylight that is sunny 72%, daylight per day 10.7 h.

    Against: average daily low 17.8 °C / 64 °F, wind (daily max) 35 km/h / 21 mph.

  • February · best

    In its favour: average daily high 19.4 °C / 67 °F, precipitation 46 mm / 1.8 in, wet days 6.1 days, days with heavy rain 1.1 days, feels like (high) 17.4 °C / 63 °F, share of daylight that is sunny 78%, daylight per day 11.2 h, wind (daily max) 33 km/h / 20 mph.

    Against: average daily low 17.5 °C / 64 °F.

  • March · best

    In its favour: average daily high 20.3 °C / 69 °F, precipitation 64 mm / 2.5 in, days with heavy rain 1.7 days, wet days 8.5 days, feels like (high) 19.4 °C / 67 °F, share of daylight that is sunny 79%, daylight per day 12 h, wind (daily max) 31 km/h / 19 mph.

    Against: average daily low 18.5 °C / 65 °F.

  • April · good

    In its favour: average daily high 21.6 °C / 71 °F, precipitation 117 mm / 4.6 in, share of daylight that is sunny 76%, daylight per day 12.8 h, feels like (high) 22.2 °C / 72 °F, wet days 10.6 days, days with heavy rain 3.5 days, wind (daily max) 30 km/h / 19 mph.

    Against: average daily low 20.1 °C / 68 °F.

An activity is listed only where it applies: skiing at ski destinations, beach and swimming at beach destinations. The nearest ski area is Heavens Sonohara (ヘブンスそのはらSNOW WORLD), 1036 km away.

Weather averages

Monthly averages over twenty years, 2006–2025. Highs, lows and precipitation are in the chart at the top.

  JanFebMarAprMayJunJulAugSepOctNovDec
Feels like (high) 17.2 °C17.4 °C19.4 °C22.2 °C26.4 °C30.9 °C33 °C32.8 °C32.3 °C30.1 °C25.9 °C21.1 °C
Days with heavy rain 2 days1.1 days1.7 days3.5 days4.5 days2.9 days1.7 days3.2 days3 days3.9 days3.4 days3.7 days
Time rain usually falls 4 am1 am12 pm9 am4 am8 am9 am2 am5 am4 am1 am12 pm
Sunshine per day 7.7 h8.8 h9.5 h9.8 h10.3 h11 h12.1 h11.7 h10.8 h9.8 h8.5 h6.8 h
Relative humidity 65%68%72%79%86%88%83%83%83%81%75%69%

Sea temperature

Averaged over a shorter period (2022–2025) than the twenty-year averages above.

  JanFebMarAprMayJunJulAugSepOctNovDec
Sea temperature 2022–202521.3 °C20.6 °C20.8 °C22.3 °C24.5 °C27 °C28.8 °C28.7 °C29 °C28.3 °C26.3 °C23.8 °C
Sea temperature (daily max) 2022–202521.4 °C20.8 °C21 °C22.5 °C24.8 °C27.3 °C29.1 °C28.9 °C29.2 °C28.4 °C26.3 °C23.9 °C
  • Very cold 10 °C or less
  • Cold 10 to 15 °C
  • Cool 15 to 20 °C
  • Comfortable 20 to 25 °C
  • Warm 25 to 28 °C
  • Very warm over 28 °C

The words describe how the water feels to swim in. They are ours, not an official standard.

Air quality

Averaged over a shorter period (2022–2025) than the twenty-year averages above, and not counted towards good or best months.

  JanFebMarAprMayJunJulAugSepOctNovDec
Air pollution (PM2.5) 2022–202510.9 µg/m³13 µg/m³12.5 µg/m³13.2 µg/m³12.7 µg/m³9 µg/m³7.1 µg/m³8.2 µg/m³8.4 µg/m³9.3 µg/m³10 µg/m³9.7 µg/m³
Air pollution (PM2.5, daily peak) 2022–202514.7 µg/m³16.4 µg/m³16 µg/m³17.4 µg/m³15.7 µg/m³11.8 µg/m³9.1 µg/m³10.5 µg/m³10.6 µg/m³12.2 µg/m³13 µg/m³12.9 µg/m³
  • Good 15 µg/m³ or less
  • Fair 15 to 25 µg/m³
  • Moderate 25 to 37.5 µg/m³
  • Poor 37.5 to 50 µg/m³
  • Very poor 50 to 75 µg/m³
  • Extremely poor over 75 µg/m³

Each figure is compared with the World Health Organization's guideline for a day's air, 15 µg/m³ or less, and with its interim targets above that. The words are ours: the WHO does not name its steps. The figures are modelled monthly averages, so single days can be well above them. The daily peak is the average of each day's highest hour, shaded on the same scale.

World Heritage sites nearby

UNESCO World Heritage sites within 25 km, nearest first.

  • Ogasawara Archipelago

    5 km away

Other places in Japan

Compare places month by month on the travel calendar

Monthly averages over 2006–2025, unless stated otherwise.

Weather data by Open-Meteo.com (CC-BY 4.0), generated using Copernicus Climate Change Service information (ERA5). City data from GeoNames (CC-BY 4.0). Air quality from the Copernicus Atmosphere Monitoring Service (CAMS) and sea temperature from Météo-France / Copernicus Marine, both via Open-Meteo.com. Coastline from Natural Earth. Ski areas from OpenSkiMap.org, © OpenStreetMap contributors (ODbL) and Skimap.org. World Heritage sites from Wikidata (CC0), from the World Heritage List © UNESCO World Heritage Centre. Readership from Wikimedia pageview data (CC0). Destination classification derived from English Wikivoyage, © Wikivoyage contributors (CC BY-SA 4.0).