modified: app.py

modified:   templates/weather.html

app.py

@@ -341,12 +341,22 @@ def pick_daily_icon(hours):
     return "☀️"
 
 def feels_like(temp_c, wind_kmh, cloud_pct):
+    """Apparent temperature.
+
+    * Below 10 °C with wind > 4.8 km/h: Windchill (JAG/TI formula)
+    * Above 27 °C: Heat index (Rothfusz, assumed RH 60 %)
+    * Otherwise: actual temp ± sunshine/wind adjustments
+      - Wind cools by up to ~3 °C even in the mild range
+      - Sunshine (low clouds, no wind) warms by up to +4 °C
+    """
     if temp_c is None:
         return None
+    # ── Cold range: wind chill ────────────────────────────────────────
     if temp_c <= 10 and wind_kmh is not None and wind_kmh > 4.8:
         v = wind_kmh
         wc = 13.12 + 0.6215*temp_c - 11.37*(v**0.16) + 0.3965*temp_c*(v**0.16)
         return round(wc, 1)
+    # ── Hot range: heat index ─────────────────────────────────────────
     if temp_c >= 27:
         rh = 60
         hi = (-8.78469475556 + 1.61139411*temp_c + 2.33854883889*rh
@@ -354,7 +364,19 @@ def feels_like(temp_c, wind_kmh, cloud_pct):
               - 0.016424828*rh**2 + 0.002211732*temp_c**2*rh
               + 0.00072546*temp_c*rh**2 - 0.000003582*temp_c**2*rh**2)
         return round(hi, 1)
-    return temp_c
+    # ── Mild range: sunshine bonus + light wind cooling ───────────────
+    adjusted = float(temp_c)
+    # Sunshine bonus: clear sky (cloud_pct < 30) adds up to +4 °C
+    if cloud_pct is not None and cloud_pct < 30:
+        sunshine_bonus = (30 - cloud_pct) / 30 * 4.0
+        adjusted += sunshine_bonus
+    # Moderate wind cooling: >10 km/h removes up to 3 °C
+    if wind_kmh is not None and wind_kmh > 10:
+        wind_penalty = _clamp((wind_kmh - 10) / 40 * 3.0, 0, 3.0)
+        adjusted -= wind_penalty
+    result = round(adjusted, 1)
+    # Only return a value if it meaningfully differs from actual temp
+    return result if abs(result - temp_c) >= 0.5 else temp_c
 
 def get_sun_times(lat, lon, date=None):
     try:
@@ -647,7 +669,7 @@ def wetter():
         lat, lon, display_name, state_hint, location_names = geocode_location(ort)
         if lat is None:
             return render_template("index.html", error=f'Ort "{ort}" konnte nicht gefunden werden.')
-    forecast, mosmix_station = get_mosmix_forecast(lat, lon, hours=72)
+    forecast, mosmix_station = get_mosmix_forecast(lat, lon, hours=168)
     if not forecast:
         return render_template("index.html", error="Keine Wetterdaten verfügbar. Bitte später erneut versuchen.")
     station_name = mosmix_station.get("name", ort)
@@ -702,7 +724,7 @@ def wetter():
             "icon":      pick_daily_icon(d["hours"]),
         })
     chart_labels, chart_temps, chart_feels, chart_precip, chart_rain_prob = [], [], [], [], []
-    for h in forecast[:48]:
+    for h in forecast[:72]:
         dt = h["datetime"]
         label = dt.strftime("%d.%m %H:%M") if hasattr(dt,"strftime") else str(dt)[5:16]
         chart_labels.append(label)

templates/weather.html

@@ -197,7 +197,7 @@
 <section class="section">
   <div class="chart-head">
     <h2 class="section-title">Temperatur, Gefühlt &amp; Niederschlag</h2>
-    <span class="chart-range">48 Stunden</span>
+    <span class="chart-range">72 Stunden</span>
   </div>
   <div class="chart-box">
     <canvas id="wxChart"></canvas>