Castelo Mendo Weather in January
January in Castelo Mendo brings low temperatures, with daytime highs of 11°C (52°F) and nights around 2°C (36°F). Quite a bit of rainfall is expected, around 70 mm (2.8 in), so pack an umbrella.
Rainfall in Castelo Mendo in January
Past climate data indicates that roughly 16 days will see rain, totalling around 70 mm (2.8 in) for the month. This is a month with many wet days but modest rainfall totals, so showers are generally light and easy to manage.
Temperature in Castelo Mendo in January
If you're visiting Castelo Mendo in January, expect highs of 11°C (52°F) and overnight lows around 2°C (36°F). The winter season takes place during January. Temperatures remain on the cold side all day. A proper warm jacket is worth having, not just for evenings. At 2°C (36°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions. This period often claims the chilliest monthly averages of the year.
Sunshine in Castelo Mendo in January
The city usually sees around 128 hours of sunlight, indicating a moderately sunny period.If you prefer dry days with pleasant temperatures, January may not be the ideal month to visit Castelo Mendo. 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 Castelo Mendo's climate page.
Castelo Mendo Temperature in January
Min Temperature
2°C (36°F)
Max Temperature
11°C (52°F)
Chance of Rain
52%
Precipitation
70 mm (2.8 in)
Rainy days
16 days
Humidity
80% *
Sunshine
128 hours *
Percentage Sunshine
*
Daily Historical Temperatures
45-year average (1976-2026)
Based on our historical records, temperatures in Castelo Mendo typically stay consistent throughout January, with daily highs averaging around 11°C (52°F). Nights are cold, with lows typically ranging from 1°C (34°F) to 4°C (39°F).
Average temperatures in January
Daily Historical Precipitation
45-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 Castelo Mendo in January
Browse day-by-day weather records for Castelo Mendo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Castelo Mendo historical weather extremes in January
Based on 25 years of weather observations in Castelo Mendo between 2000 and 2025, these are the recorded extremes.
- The warmest day in January was on January 27, 2003, with a maximum of 18°C (64°F).
- On January 10, 2010, Castelo Mendo saw its coldest January day with temperatures maxing out at -3°C (27°F).
- Nighttime temperatures dropped to -7°C (19°F) on January 29, 2006, 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 →
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What to Wear in Castelo Mendo 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. Rain is likely on several days, so bring a good rain jacket. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Castelo Mendo 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 Castelo Mendo's climate page.
Temperature Rainfall Sunshine Humidity
See the full Castelo Mendo climate overview or explore weather in Portugal.
