Koshien Stadium weather

    Live weather and game-time forecast for Koshien Stadium, the historic open-air home of the Hanshin Tigers.

    Home team: Hanshin Tigers
    Nishinomiya
    Open air
    Capacity: 47,400

    Next game at Koshien Stadium

    No scheduled fixture at Koshien Stadium inside the next 10 days. Upcoming games appear here automatically as they are listed.

    Live stadium conditions

    Live conditions are not available right now. They refresh automatically when the station responds.

    Live readings at the stadium; local time is Asia/Tokyo.

    Why Koshien Stadium plays differently

    Opened in 1924, Koshien is Japan's most storied ballpark and one of its most weather-exposed. The all-dirt infield plays very differently when wet, and the stadium sits between Osaka Bay and the Rokko mountains, where summer humidity is heavy and rainy-season fronts pass through regularly in June and July.

    Stadium Map

    Koshien Stadium weather FAQs

    Koshien's famous all-dirt infield absorbs water and changes footing and ball bounce when wet. Grounds crews work it constantly during rainy season, and wet dirt is part of the park's identity.

    No. Koshien is fully open air, which is why its schedule is one of the most weather-affected in NPB.

    The June–July rainy season brings the most delays, while August games are played in peak Kansai heat and humidity.

    Weather normals at Koshien Stadium, month by month

    Measured at the ground for every NPB game we have archived here (489 games). Months with fewer than 5 games are left out rather than averaged from a handful.

    MonthGamesAvg tempAvg windWet games
    April6962.5°F7.7 mph12%
    May8970.2°F7.3 mph13%
    June7476.1°F6.8 mph28%
    July9483.0°F6.8 mph16%
    August2583.7°F7.0 mph16%
    September10080.0°F6.4 mph19%
    October3368.2°F6.9 mph6%
    November553.9°F5.8 mph0%

    Scoring in matched conditions at Koshien Stadium

    Games here have averaged 6.6 combined runs across all conditions. Each slice below needs at least 10 games at this ground to appear.

    Wind 15+ mph
    7.4
    14 games · +0.8 vs venue average
    Hot (80°F+)
    6.6
    167 games · 0.0 vs venue average
    Any rain
    7.1
    81 games · +0.5 vs venue average

    These are descriptive historical averages at this ground, not predictions for any future game, and not a claim about betting markets. Slices overlap — a cold game can also be a windy one.

    What the research says

    The published studies behind the read on this page at Koshien Stadium. Every figure is season-adjusted, with sample sizes and t-statistics shown.

    • NPB Temperature, Wind & Scoring

      Heat is the cleanest signal in Japanese baseball: games at 80°F and over score 0.61 runs more than mild weather, while the 50s cost 0.66 runs. Only wind of 20 mph and over moves scoring at all (+1.44 runs); rain is a null.

      3,460 dry open-air games, 2018–2025, season-adjusted against the 70–79°F control

    All weather research · How our leans are derived

    About this page

    Koshien Stadium weather is updated live from the nearest weather stations and shown in local time (Asia/Tokyo). The page uses one permanent URL for the ballpark. Our NPB temperature and wind study is published; because we hold no historical closing totals for Japanese baseball, this page reports conditions and measured scoring effects without claiming a market edge.

    Other Nippon Professional Baseball weather resources