January weather forecast and climate
São João da Ribeira, Portugal

Weather in January

January, the same as December, in São João da Ribeira, Portugal, is another mild winter month, with average temperature varying between 6.8°C (44.2°F) and 14°C (57.2°F).

Temperature

January is the coldest month, with an average high-temperature of 14°C (57.2°F) and an average low-temperature of 6.8°C (44.2°F).

Humidity

The most humid month is January, with an average relative humidity of 81%.

Rainfall

In São João da Ribeira, during January, the rain falls for 13.3 days and regularly aggregates up to 36mm (1.42") of precipitation. In São João da Ribeira, Portugal, during the entire year, the rain falls for 108.1 days and collects up to 337mm (13.27") of precipitation.

Daylight

In January, the average length of the day in São João da Ribeira is 9.8h.

Sunshine

The month with the least sunshine is January, with an average of 5.2h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in São João da Ribeira. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to the UV radiation for average individuals.
Note: In January, the average maximum UV index of 3 translate into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the coldest month in São João da Ribeira?

January is the coldest month, with an average high-temperature of 14°C (57.2°F) and an average low-temperature of 6.8°C (44.2°F).

What is the temperature in January in São João da Ribeira?

In January, the average high-temperature is 14°C (57.2°F), and the average low-temperature is 6.8°C (44.2°F).

What is the most humid month in São João da Ribeira?

January is the most humid month in São João da Ribeira, with an average relative humidity of 81%.

What is the average humidity in January in São João da Ribeira?

In January, the average relative humidity in São João da Ribeira is 81%.

How much does it rain in São João da Ribeira in January?

In São João da Ribeira, in January, it is raining for 13.3 days, with typically 36mm (1.42") of accumulated precipitation.

What is the average length of the day in January in São João da Ribeira?

In January, the average length of the day in São João da Ribeira is 9.8h.

What is the month with the least sunshine in São João da Ribeira?

January has the least sunshine of the year in São João da Ribeira, with an average of 5.2h of sunshine.

How long on average sun shines in January in São João da Ribeira?

In São João da Ribeira, Portugal, the average sunshine in January is 5.2h.

When is the lowest UV index in São João da Ribeira?

Months with the lowest UV index in São João da Ribeira are January, February, November and December, with an average maximum UV index of 3.

How high is the UV index in January in São João da Ribeira?

In São João da Ribeira, Portugal, the average daily maximum UV index in January is 3. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV radiation.

Average temperature in January
São João da Ribeira, Portugal

Average temperature in January - São João da Ribeira, Portugal
  • Average high temperature in January: 14°C

The warmest month (with the highest average high temperature) is August (31°C).
The month with the lowest average high temperature is January (14°C).

  • Average low temperature in January: 6.8°C

The month with the highest average low temperature is July (15.8°C).
The coldest months (with the lowest average low temperature) are January and February (6.8°C).

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Average pressure in January
São João da Ribeira, Portugal

Average pressure in January - São João da Ribeira, Portugal
  • Average pressure in January: 1022.3mbar

The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.5mbar).

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Average wind speed in January
São João da Ribeira, Portugal

Average wind speed in January - São João da Ribeira, Portugal
  • Average wind speed in January: 11.8km/h

The windiest month (with the highest average wind speed) is July (13.2km/h).
The calmest months (with the lowest average wind speed) are September and October (10.6km/h).

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Average humidity in January
São João da Ribeira, Portugal

Average humidity in January - São João da Ribeira, Portugal
  • Average humidity in January: 81%

The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (62%).

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Average rainfall in January
São João da Ribeira, Portugal

Average rainfall in January - São João da Ribeira, Portugal
  • Average rainfall in January: 36mm

The wettest month (with the highest rainfall) is November (53mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in January
São João da Ribeira, Portugal

Average rainfall days in January - São João da Ribeira, Portugal
  • Average rainfall days in January: 13.3 days

The month with the highest number of rainy days is November (13.9 days).
The month with the least rainy days is August (2.4 days).

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Average daylight in January /
Average sunshine in January
São João da Ribeira, Portugal

Average daylight in January / Average sunshine in January - São João da Ribeira, Portugal
  • Average daylight in January: 9.8h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in January: 5.2h

The month with the most sunshine is July (Average sunshine: 11.2h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in January
São João da Ribeira, Portugal

Average sunshine days in January - São João da Ribeira, Portugal
  • Average sunshine days in January: 15.9 days

The month with the most sunshine days is July (27.3 days).
Months with the least sunshine days are April and November (14.6 days).

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Average UV index in January
São João da Ribeira, Portugal

Average UV index in January - São João da Ribeira, Portugal
  • Average UV index in January: 3

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in January
São João da Ribeira, Portugal

Average cloud cover in January - São João da Ribeira, Portugal
  • Average cloud cover in January: 42

The month with the most cloud cover is January (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

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Average visibility in January
São João da Ribeira, Portugal

Average visibility in January - São João da Ribeira, Portugal
  • Average visibility in January: 9km

The month with the highest visibility is June (10km).
Months with the lowest visibility are January, February, March, April, May, July, August, September, October, November and December (9km).

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