diff --git a/haos-addon/config.yaml b/haos-addon/config.yaml
index de72f41..19a6a6c 100644
--- a/haos-addon/config.yaml
+++ b/haos-addon/config.yaml
@@ -1,5 +1,5 @@
 name: ShineBridge
-version: "1.12.0"
+version: "1.12.1"
 slug: shinebridge
 description: Energiemanagement für Growatt/Goodwe-Wechselrichter — PV-Überschussladen, Wallbox-EMS, Tarifvergleich, Zigbee2MQTT-Überschussgeräte
 url: https://gitea.bitfire.work/retr0/shinebridge
diff --git a/haos-addon/src/main.py b/haos-addon/src/main.py
index f56af89..1950f7b 100644
--- a/haos-addon/src/main.py
+++ b/haos-addon/src/main.py
@@ -511,6 +511,19 @@ def _restart_all():
 
 # ── REST API ──────────────────────────────────────────────────
 
+@app.get("/api/weather-forecast")
+def api_weather_forecast():
+    with State.lock:
+        lat = State.mqtt_cfg.get("site_lat")
+        lon = State.mqtt_cfg.get("site_lon")
+        # Beispiel-Basiswert: erstes konfigurierte Kathrein-Timeout, sonst 2h-Default
+        base = next(
+            (inv.get("ems_timeout") for inv in State.inverters_cfg if inv.get("ems_timeout")),
+            2.0,
+        )
+    return jsonify(weather_forecast.summary(lat, lon, float(base)))
+
+
 @app.get("/api/config")
 def api_get_config():
     with State.lock:
diff --git a/haos-addon/src/weather_forecast.py b/haos-addon/src/weather_forecast.py
index 054e83e..fe203d9 100644
--- a/haos-addon/src/weather_forecast.py
+++ b/haos-addon/src/weather_forecast.py
@@ -84,3 +84,39 @@ def adjusted_timeout_h(base_timeout_h: float, lat: Optional[float], lon: Optiona
         # nicht sinnlos den vollen Timeout abwarten, aber nie unter 0.5h
         return max(base_timeout_h * 0.5, 0.5)
     return base_timeout_h
+
+
+def summary(lat: Optional[float], lon: Optional[float], base_timeout_h: float = 2.0) -> dict:
+    """Für die UI: aktueller Prognose-Stand + Beispiel, wie sich ein Timeout
+    dadurch veraendern wuerde. Nicht fuers eigentliche EMS-Update genutzt
+    (das ruft adjusted_timeout_h direkt auf) — nur zur Anzeige/Diagnose."""
+    if lat is None or lon is None:
+        return {"configured": False}
+
+    hourly = get_hourly_ghi(lat, lon)
+    if not hourly:
+        return {"configured": True, "error": "Prognose aktuell nicht abrufbar"}
+
+    now = time.time()
+    near = [ghi for ts, ghi in hourly if now <= ts < now + 3 * 3600]
+    horizon = [ghi for ts, ghi in hourly if now <= ts < now + 12 * 3600]
+    next_3h_max = round(max(near), 0) if near else 0
+    horizon_12h_max = round(max(horizon), 0) if horizon else 0
+
+    adjusted = adjusted_timeout_h(base_timeout_h, lat, lon)
+    if adjusted > base_timeout_h:
+        verdict = "verlängert"
+    elif adjusted < base_timeout_h:
+        verdict = "verkürzt"
+    else:
+        verdict = "unverändert"
+
+    return {
+        "configured": True,
+        "next_3h_max_ghi": next_3h_max,
+        "horizon_12h_max_ghi": horizon_12h_max,
+        "sun_threshold": SUN_THRESHOLD,
+        "example_base_h": base_timeout_h,
+        "example_adjusted_h": round(adjusted, 2),
+        "verdict": verdict,
+    }
diff --git a/haos-addon/src/web/index.html b/haos-addon/src/web/index.html
index 85a3cde..7ea8ceb 100644
--- a/haos-addon/src/web/index.html
+++ b/haos-addon/src/web/index.html
@@ -243,6 +243,7 @@
           <input type="number" id="cfg-site-lon" step="0.0001" placeholder="z.B. 13.4050"></div>
       </div>
       <button class="btn btn-primary" onclick="saveLocation()">Speichern</button>
+      <div id="weather-preview" style="margin-top:.75rem;font-size:.85rem"></div>
     </div>
 
     <div class="settings-section">
@@ -1252,6 +1253,7 @@ async function loadSettings() {
   document.getElementById("cfg-backup-retention").value = cfg.config_backup_retention_days ?? 14;
   document.getElementById("cfg-site-lat").value = cfg.site_lat ?? "";
   document.getElementById("cfg-site-lon").value = cfg.site_lon ?? "";
+  loadWeatherPreview();
 }
 
 async function saveLocation() {
@@ -1263,9 +1265,30 @@ async function saveLocation() {
       body: JSON.stringify({ site_lat: lat === "" ? null : lat, site_lon: lon === "" ? null : lon }),
     });
     showToast("Gespeichert!", "ok");
+    setTimeout(loadWeatherPreview, 500);
   } catch(e) { showToast("Fehler beim Speichern", "err"); }
 }
 
+async function loadWeatherPreview() {
+  const el = document.getElementById("weather-preview");
+  let data;
+  try { data = await fetchJSON(api("api/weather-forecast")); }
+  catch(e) { el.innerHTML = ""; return; }
+
+  if (!data.configured) {
+    el.innerHTML = `<span style="color:var(--text-dim)">Kein Standort gesetzt — Zwangslade-Timeout bleibt fest.</span>`;
+    return;
+  }
+  if (data.error) {
+    el.innerHTML = `<span style="color:var(--red)">${esc(data.error)}</span>`;
+    return;
+  }
+  const verdictColor = data.verdict === "verlängert" ? "var(--green)" : data.verdict === "verkürzt" ? "var(--orange, #ffa657)" : "var(--text-dim)";
+  el.innerHTML = `
+    <div style="color:var(--text-dim)">Solarstrahlung nächste 3h: <strong style="color:var(--text)">${data.next_3h_max_ghi} W/m²</strong> · nächste 12h: <strong style="color:var(--text)">${data.horizon_12h_max_ghi} W/m²</strong></div>
+    <div style="margin-top:4px;color:${verdictColor}">Beispiel bei ${data.example_base_h}h Basis-Timeout: <strong>${data.example_adjusted_h}h</strong> (${data.verdict})</div>`;
+}
+
 async function savePrices() {
   const isSpot = document.getElementById("tariff-spot").checked;
   const body = {