EXTPRT
EXPERIMENTAL LONGRANGE FOR MAIA
EXPERIMENTAL FORECAST OFFICE - PORTO METRO
05:22 UTC THU DEC 25 2025
Long-Range Forecast - Maia
Issued: 05:22 UTC Thursday, 25 December 2025 | Valid: 15 days
| Date | Conditions | Low | High | Notes |
|---|---|---|---|---|
| 25 Dec | Clear | 4°C | 12°C | Dry, breezy afternoon; good day for outdoor activities |
| 26 Dec | Clear | 3°C | 11°C | Dry for most; slight chance of late shower, gusty at times |
| 27 Dec | Clear | 5°C | 12°C | Dry, breezy again; pack a wind-resistant layer |
| 28 Dec | Clear | 8°C | 14°C | Mildest day in over a week; ideal for walking or light outdoor plans |
| 29 Dec | Clear | 6°C | 14°C | Dry and stable; pleasant afternoon |
| 30 Dec | Clear | 4°C | 12°C | Cool night; dry throughout |
| 31 Dec | Overcast | 3°C | 9°C | Dry but chilly; New Year’s Eve night will be cold |
| 01 Jan | Mainly Clear | 3°C | 9°C | Dry, quiet start to the year; frost possible in sheltered spots |
| 02 Jan | Light Drizzle | 2°C | 8°C | Light rain, brief snow possible on grass before 10 AM; grass: trace to light dusting possible, pavement: none (melts on contact); slippery spots not ruled out |
| 03 Jan | Clear | 4°C | 8°C | Dry, brief light rain possible late evening; no snow accumulation |
| 04 Jan | Clear | 1°C | 8°C | Coldest night of period; frost likely; wet-bulb near 0°C, sensitive surfaces may briefly support melting flurries if moisture passes |
| 05 Jan | Light Drizzle | 5°C | 9°C | Light rain, breezy; low snow risk even at higher elevations |
| 06 Jan | Slight Rain | 8°C | 11°C | Rain increasing through the day, windy (gusts to 86 km/h); travel delays possible |
| 07 Jan | Light Drizzle | 8°C | 10°C | Lingering damp, still windy; outdoor plans may need flexibility |
| 08 Jan | Clear | 5°C | 9°C | Drying out, breezy morning; return to quiet weather |
Trend Summary
After a stretch of dry, cool days around Christmas, temperatures rise slightly by Sunday the 28th, bringing the warmest conditions in over a week. A shift begins around New Year’s Eve, with clouds increasing and temperatures trending downward. The coldest period arrives on January 2nd and 4th, with morning lows near or just above freezing.
Of note: On the morning of January 2nd, light precipitation coincides with temperatures near 2°C and wet-bulb values at 1°C. While most rain will fall as liquid, brief snow flurries cannot be ruled out on grassy or elevated surfaces, especially before 10 AM. Accumulation is expected to be trace to light dusting on grass, with no accumulation on roads or pavement due to melting on contact. This is not a widespread snow event, but isolated slick spots on untreated surfaces are possible.
From January 5th to 7th, milder but wetter and windier weather returns, with rain and strong gusts. The period ends with a return to dry, cooler conditions by January 8th.
Model trends have been stable in recent runs, with consistent temperature and precipitation timing. However, confidence is low for exact timing of light precipitation on January 2nd and 4th, as small shifts could determine whether brief snow occurs or not.
Practical advice:
- Pack warm layers for early January mornings, especially on the 2nd and 4th.
- If traveling on January 2nd morning, be aware of brief reduced visibility or slippery grassy areas, though roads should remain clear.
- January 6th and 7th may bring windy, damp conditions—secure loose outdoor items and allow extra time for travel.
- The period from the 25th to 29th offers the best window for outdoor activities.
Experimental forecast - not official guidance