Month guide · Cartaxo, Portugal

Cartaxo in January: weather and what to expect

In January, Cartaxo averages highs of 14°C and lows of 7°C, with about 10 rainy days and 70 mm of rain. Highs are 1°C cooler than in December and 1°C cooler than in February. Crowds in Oeste e Vale do Tejo are low.

Based on 1991-2020 climate data · Updated 1 November 2026 · Sources

Average high Town-level14°CLow 7°C
Rainy days Town-level1070 mm in total
UV index Modelled2Low at noon on a clear day
Crowds RegionalLowOeste e Vale do Tejo as a whole

Is January a good time to visit?

Good for

No verdicts for Cartaxo in January yet. They only use climate values that are precise enough to judge with.

Not ideal for

Nothing stands out as a weaker fit.

Daily highs through January

Town-level · ERA5-Land 1991-2020
Usual range (8 in 10 years)Typical high

Highs stay about the same through the month. Nights below 0°C in about 1 in 3.

January in detail

Town-level · ERA5-Land
MeasureDecemberJanuaryFebruary
Average high15°C14°C15°C
Average low8°C7°C7°C
Rainy days (at least 1 mm)9107
Total rainfall79 mm70 mm54 mm
Daylight (mid-month)9 h 26 min9 h 42 min10 h 43 min

Crowds, holidays and daylight

Visitor level RegionalLowNights booked through online platforms in Oeste e Vale do Tejo in January 2025: about 10% of the busiest month.

Public holidays in January 2027

  • 1 Jan New Year's Day

Local (municipal) holidays are not included.

Daylight mid-month Exact9 h 42 minSunrise to sunset, calculated from the town's coordinates.
PlaceHighRain daysFrom Cartaxo
Aljezur, Algarve15°C9205 km
Mértola, Alentejo15°C7195 km
São Marcos da Serra, Algarve15°C8203 km
Odemira, Alentejo15°C8174 km
Ermidas, Alentejo15°C8134 km

The nearest towns with a warmer January. Distances are in a straight line.

How January is changing

Town-level · ERA5-Land

January highs are 0.7°C warmer than in 1991-2000, and January rainfall is down about 15% (2016-2025 against 1991-2000). Days above 20°C in January went from 0 to 0.5 a year on average.

Questions about Cartaxo in January

How warm is Cartaxo in January?

Average highs are 14°C and lows 7°C. December averages 15°C and February 15°C.

Does it rain much in Cartaxo in January?

About 10 days have at least 1 mm of rain, with 70 mm in total over the month.

Is Cartaxo busy in January?

In January 2025, nights booked through online platforms in Oeste e Vale do Tejo were about 10% of the busiest month, which we count as low. The figure is for the whole region and leaves out hotels.

How long are the days in Cartaxo in January?

About 9 h 42 min from sunrise to sunset in the middle of the month.

Sources

Climate: ERA5-Land, Copernicus Climate Change Service (C3S) Climate Data Store, contains modified Copernicus information (CC BY 4.0). Crowds: Eurostat, nights spent in short-stay accommodation booked through online platforms (tour_ce_omn12) (CC BY 4.0). Place names and populations: GeoNames (CC BY 4.0). Climate averages cover 1991-2020. Daylight: calculated from the town's coordinates. Full methodology