January · Portugal
Best time to visit Cascais in January Weather, crowds & prices
Weather in Cascais in January
Average temperature 14°C, 57 mm of rain, about 1 days with 6+ hours of sunshine and 81% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
January score
2.6/10
Ranked #11 of 12 months
- Avg temp
- 14°C
- Rainfall
- 57 mm
- Humidity
- 81%
- Days with 6h+ sun
- 1
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $$ · Moderate Cost ($$)
January in Cascais scores 2.6/10 for beach and coastal travel - ranked #11 of 12. Expect around 14°C, 57 mm of rain, and roughly 1 days with 6+ hours of sunshine this month.
Cascais pairs a walkable former fishing town with sheltered beaches, an Atlantic promenade, and the wilder coast toward Guincho.
January in Cascais — off-season conditions
January averages 14°C (56°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
Rainfall runs 57 mm, so plan one flexible day in three; you still get about 1 days with 6+ hours of sunshine and 9.6 hours of daylight.
It scores 2.6/10 here, 11th of 12 months, against 8.5/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a packable rain layer.
Figure on mid-season pricing, with crowds are light for this destination.
Flexible dates? August scores 5.9 points higher here — enough to change the trip.
Frequently asked
- What is the weather like in Cascais in January?
- In January, Cascais averages 14°C, 57 mm of rain, and about 1 days with 6+ hours of sunshine. Its climate-comfort score is 2.6/10.
- Is January a good time to visit Cascais?
- January earns a 2.6/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Cascais in January?
- Expect about 57 mm of rain in January. Average humidity is 81% and there are about 1 days with 6+ hours of sunshine.
Curated in Cascais
Tickets & experiences
Things to do in Cascais
Cascais, Portugal. Live activities and tours from GetYourGuide, matched to this destination.