Sintra Weather in January
Sintra in January sees moderate temperatures, with highs around 15°C (59°F) and overnight lows of 11°C (52°F). Rainfall is fairly high at around 82 mm (3.2 in) on average, so pack waterproofs just in case.
Rainfall in Sintra in January
Historically, January sees about 15 days of rain, with a monthly average of 82 mm (3.2 in). Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in Sintra in January
Expect highs of 15°C (59°F) in Sintra in January, with nights dropping to around 11°C (52°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. Expect the mildest temperatures of the year this month, yet still enjoyably warm.
Sunshine in Sintra in January
The area experiences a moderate amount of sunshine, with approximately 163 hours of sunlight expected. This means a decent mix of sun and overcast.If you're looking for dry conditions and comfortable temperatures, January may not be the ideal month to visit Sintra. Our weather planner can help you explore destinations with more pleasant weather conditions.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Sintra's climate page.
Sintra Temperature in January
Min Temperature
11°C (52°F)
Max Temperature
15°C (59°F)
Chance of Rain
48%
Precipitation
82 mm (3.2 in)
Rainy days
15 days
Humidity
82% *
Sunshine
163 hours *
Percentage Sunshine
53% *
Daily Historical Temperatures
50-year average (1976-2026)
Based on our historical records, temperatures in Sintra typically stay consistent throughout January, with daily highs averaging around 15°C (59°F). Nights are cold, with lows around 8°C (46°F).
Average temperatures in January
Daily Historical Precipitation
50-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Sintra in January
Browse day-by-day weather records for Sintra spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Sintra historical weather extremes in January
Based on weather observations in Sintra between 2000 and 2025, these are the recorded extremes during January.
- On January 25, 2024, temperatures climbed to 24°C (75°F), marking the warmest January day on record.
- The lowest daytime temperature in January was 7°C (45°F), recorded on January 28, 2007.
- Nighttime temperatures dropped to -4°C (25°F) on January 9, 2009, marking the coldest January night on record.
Best Places in Portugal in January
Find out more about the weather in Portugal and which places have the best travel conditions in this month. See all of Portugal in January →
perfect weather
pleasant
tolerable
unpleasant
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What to Wear in Sintra in January
The weather can be unpredictable in January, so pack clothes you can easily mix and match. You could bring jeans, other long pants, and a few t-shirts. A light jacket or light sweater will be pleasant for the cooler moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Bring sunglasses since you'll have some sunny periods throughout the monthWhat To Do in Sintra in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Portugal, check out our Sintra's climate page.
Temperature Rainfall Sunshine Humidity
See the full Sintra climate overview or explore weather in Portugal.
