diff --git a/internal/forecast/open_meteo.go b/internal/forecast/open_meteo.go
index 0a9547d..7086f5f 100644
--- a/internal/forecast/open_meteo.go
+++ b/internal/forecast/open_meteo.go
@@ -88,10 +88,12 @@ func RunOpenMeteoFetch(ctx context.Context) error {
 				v.rh = data.Hourly.Humidity[i]
 			}
 			if i < len(data.Hourly.WindSpeed) {
-				v.ws = data.Hourly.WindSpeed[i]
+				// 将 km/h 转换为 m/s: m/s = km/h ÷ 3.6
+				v.ws = data.Hourly.WindSpeed[i] / 3.6
 			}
 			if i < len(data.Hourly.WindGusts) {
-				v.gust = data.Hourly.WindGusts[i]
+				// 将 km/h 转换为 m/s: m/s = km/h ÷ 3.6
+				v.gust = data.Hourly.WindGusts[i] / 3.6
 			}
 			if i < len(data.Hourly.WindDir) {
 				v.wdir = data.Hourly.WindDir[i]
@@ -154,6 +156,8 @@ func buildOpenMeteoURL(lat, lon sql.NullFloat64) string {
 	q.Set("longitude", fmt.Sprintf("%f", lon.Float64))
 	q.Set("hourly", "rain,temperature_2m,relative_humidity_2m,wind_speed_10m,wind_gusts_10m,wind_direction_10m,precipitation_probability,surface_pressure")
 	q.Set("timezone", "Asia/Shanghai")
+	// 可以添加单位参数，但我们已经在代码中处理了单位转换，所以保持默认单位即可
+	// 默认单位：风速 km/h，温度 °C，降水量 mm，气压 hPa
 	return "https://api.open-meteo.com/v1/forecast?" + q.Encode()
 }