January weather forecast and climate
Rio Bom, Portugal

Weather in January

January, the same as December, in Rio Bom, Portugal, is a frosty winter month, with average temperature varying between 1.8°C (35.2°F) and 8.9°C (48°F).

Temperature

The coldest month is January, with an average high-temperature of 8.9°C (48°F) and an average low-temperature of 1.8°C (35.2°F).

Humidity

The most humid month in Rio Bom is January, with an average relative humidity of 87%.

Rainfall

In Rio Bom, during 13.9 rainfall days, 58mm (2.28") of precipitation is typically accumulated. In Rio Bom, Portugal, during the entire year, the rain falls for 127.3 days and collects up to 455mm (17.91") of precipitation.

Snowfall

Months with snowfall in Rio Bom are January and February. January is the first month it typically snows. Throughout January, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow. In Rio Bom, during the entire year, snow falls for 0.8 days, and aggregates up to 7mm (0.28") of snow.

Daylight

The average length of the day is 9.6h.

Sunshine

January has the least sunshine of the year in Rio Bom, with an average of 4.4h of sunshine.

UV index

Months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: In January, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Rio Bom?

January is the coldest month, with an average high-temperature of 8.9°C (48°F) and an average low-temperature of 1.8°C (35.2°F).

What is the temperature in January in Rio Bom?

In January, in Rio Bom, Portugal, the average high-temperature is 8.9°C (48°F), and the average low-temperature is 1.8°C (35.2°F).

What is the most humid month in Rio Bom?

The most humid month in Rio Bom, Portugal, is January, with an average relative humidity of 87%.

What is the average humidity in January in Rio Bom?

The average relative humidity in January is 87%.

How much does it rain in Rio Bom in January?

In Rio Bom, Portugal, in January, it is raining for 13.9 days, with typically 58mm (2.28") of accumulated precipitation.

When does it start snowing in Rio Bom?

January is the first month it typically snows in Rio Bom. Throughout January, in the average 0.3 snowfall days, it receives 2mm (0.08") of snow.

What is the average length of the day in January in Rio Bom?

The average length of the day in January in Rio Bom, Portugal, is 9.6h.

What is the month with the least sunshine in Rio Bom?

The month with the least sunshine is January, with an average of 4.4h of sunshine.

How long on average sun shines in January in Rio Bom?

In January, the average sunshine in Rio Bom is 4.4h.

What are the months with the lowest UV index in Rio Bom?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rio Bom.

What is the UV index intensity in January in Rio Bom?

In January, the average daily maximum UV index in Rio Bom is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to the Sun's UV rays.

Average temperature in January
Rio Bom, Portugal

Average temperature in January - Rio Bom, Portugal
  • Average high temperature in January: 8.9°C

The warmest month (with the highest average high temperature) is August (29.1°C).
The month with the lowest average high temperature is January (8.9°C).

  • Average low temperature in January: 1.8°C

Months with the highest average low temperature are July and August (13.1°C).
The coldest month (with the lowest average low temperature) is February (1.5°C).

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Average pressure in January
Rio Bom, Portugal

Average pressure in January - Rio Bom, Portugal
  • Average pressure in January: 1021.9mbar

The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).

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Average wind speed in January
Rio Bom, Portugal

Average wind speed in January - Rio Bom, Portugal
  • Average wind speed in January: 7.1km/h

The windiest month (with the highest average wind speed) is March (8.3km/h).
The calmest months (with the lowest average wind speed) are September and October (6.5km/h).

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Average humidity in January
Rio Bom, Portugal

Average humidity in January - Rio Bom, Portugal
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (56%).

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Average rainfall in January
Rio Bom, Portugal

Average rainfall in January - Rio Bom, Portugal
  • Average rainfall in January: 58mm

The wettest month (with the highest rainfall) is December (72mm).
The driest months (with the least rainfall) are July and August (11mm).

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Average rainfall days in January
Rio Bom, Portugal

Average rainfall days in January - Rio Bom, Portugal
  • Average rainfall days in January: 13.9 days

The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is August (3.8 days).

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Average snowfall in January
Rio Bom, Portugal

Average snowfall in January - Rio Bom, Portugal
  • Average snowfall in January: 2mm

The month with the highest snowfall is February (5mm).
Months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in January
Rio Bom, Portugal

Average snowfall days in January - Rio Bom, Portugal
  • Average snowfall days in January: 0.3 days

The month with the highest number of snowfall days is January (0.3 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in January /
Average sunshine in January
Rio Bom, Portugal

Average daylight in January / Average sunshine in January - Rio Bom, Portugal
  • Average daylight in January: 9.6h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in January: 4.4h

The month with the most sunshine is July (Average sunshine: 11.5h).
The month with the least sunshine is January (Average sunshine: 4.4h).

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Average sunshine days in January
Rio Bom, Portugal

Average sunshine days in January - Rio Bom, Portugal
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is August (25.5 days).
The month with the least sunshine days is November (13.5 days).

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Average UV index in January
Rio Bom, Portugal

Average UV index in January - Rio Bom, Portugal
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in January
Rio Bom, Portugal

Average cloud cover in January - Rio Bom, Portugal
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 16).

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Average visibility in January
Rio Bom, Portugal

Average visibility in January - Rio Bom, Portugal
  • Average visibility in January: 6km

The month with the highest visibility is August (10km).
The month with the lowest visibility is January (6km).

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