EXTPRT
EXPERIMENTAL LONGRANGE FOR SANTA MARIA DA FEIRA
EXPERIMENTAL FORECAST OFFICE - PORTO METRO
05:22 UTC THU DEC 25 2025
Long-Range Forecast - Santa Maria da Feira
Issued: 05:22 UTC, Thursday, December 25, 2025 | Valid: 15 days
| Date | Conditions | Low | High | Notes |
|---|---|---|---|---|
| Dec 25 | Clear | 2°C | 11°C | Dry, cool night; good day for outdoor activities |
| Dec 26 | Clear | 1°C | 11°C | Slight chance of light rain; pack warm layers overnight |
| Dec 27 | Clear | 3°C | 12°C | Dry, breezy afternoon; gusts to 35 km/h |
| Dec 28 | Clear | 4°C | 14°C | Mild and dry; favorable for outdoor plans |
| Dec 29 | Clear | 2°C | 14°C | Cool night, warm day; frost possible in sheltered areas |
| Dec 30 | Clear | 3°C | 13°C | Dry and stable; typical winter day |
| Dec 31 | Overcast | 3°C | 8°C | Dry but cloudy; cooler air moving in |
| Jan 1 | Light Drizzle | 2°C | 8°C | Brief light drizzle possible; 1.2mm likely, mainly overnight |
| Jan 2 | Light Drizzle | 0°C | 8°C | Near-freezing overnight; wet-bulb at 0°C—patchy frost possible on untreated surfaces |
| Jan 3 | Clear | 2°C | 7°C | Dry, brief light rain possible (0.3mm); gusts to 32 km/h |
| Jan 4 | Clear | -1°C | 8°C | Freezing night; frost likely. Wet-bulb down to -2°C—caution for icy spots on roads and walkways |
| Jan 5 | Light Drizzle | 4°C | 8°C | Light rain over many hours (7.6mm); breezy, gusts to 49 km/h |
| Jan 6 | Light Drizzle | 6°C | 10°C | Rain likely (23.2mm), steady through the day; strong gusts to 72 km/h |
| Jan 7 | Light Drizzle | 6°C | 9°C | Lingering rain (12.3mm), still breezy; gusts near 70 km/h |
| Jan 8 | Clear | 3°C | 9°C | Drying out; only slight chance of trace rain (0.1mm) |
Trend Summary
After a stretch of dry, relatively mild weather through the weekend, a shift begins late December 31 as clouds increase and temperatures trend downward. The first few days of January bring a return of light, persistent drizzle, with the most notable rain expected January 6, when moderate totals are likely and winds increase. A brief dip to freezing is expected overnight January 4, raising the potential for frost and isolated slick spots on untreated surfaces—this is not common in Santa Maria da Feira and could impact morning travel. Beyond January 6, rainfall tapers but remains possible through January 7 before drying out by the 8th.
Temperatures remain near or just above normal through midweek, then cool slightly into the new year before rebounding briefly. No snow is indicated at any time. Any frozen precipitation cannot be ruled out if small-scale variability brings a brief cold pocket during light precipitation, but this is low confidence and not reflected in current model guidance.
Model runs over the past hour show stable temperature and precipitation trends, with good agreement through January 3. Beyond that, timing and intensity of rain on January 5–7 remain somewhat uncertain, though the overall pattern of increased moisture is consistent.
Practical Notes:
- Nights around January 4 will be cold enough for frost—protect sensitive plants and be cautious of slippery surfaces.
- January 6 may require travel adjustments due to steady rain and breezy conditions.
- No significant flooding expected, but urban drainage areas could see brief ponding if rain intensifies locally.
- The period December 25–30 remains excellent for outdoor activities.
Experimental forecast - not official guidance