May weather forecast and climate
Ribeira Branca, Portugal

Weather in May

May, the last month of the spring, in Ribeira Branca, is a warm month, with temperature in the range of an average high of 23.8°C (74.8°F) and an average low of 12°C (53.6°F).

Temperature

In May, the average high-temperature marginally rises, from an enjoyable 19.6°C (67.3°F) in April, to a warm 23.8°C (74.8°F). In May, in Ribeira Branca, the average low-temperature is 12°C (53.6°F).

Humidity

In May, the average relative humidity in Ribeira Branca is 68%.

Rainfall

In Ribeira Branca, during May, the rain falls for 9.5 days and regularly aggregates up to 32mm (1.26") of precipitation. Throughout the year, in Ribeira Branca, there are 113.2 rainfall days, and 426mm (16.77") of precipitation is accumulated.

Daylight

In May, the average length of the day is 14.4h.

Sunshine

In Ribeira Branca, Portugal, the average sunshine is 9.9h.

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 5 in May transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 temperature in May in Ribeira Branca?

In May, in Ribeira Branca, Portugal, the average high-temperature is 23.8°C (74.8°F), and the average low-temperature is 12°C (53.6°F).

What is the average humidity in May in Ribeira Branca?

In May, the average relative humidity is 68%.

How much does it rain in Ribeira Branca in May?

In Ribeira Branca, Portugal, in May, during 9.5 rainfall days, 32mm (1.26") of precipitation is typically accumulated.

What is the average length of the day in May in Ribeira Branca?

The average length of the day in May is 14.4h.

How long on average sun shines in May in Ribeira Branca?

In May, the average sunshine is 9.9h.

How high is the UV index in May in Ribeira Branca?

The average daily maximum UV index in May in Ribeira Branca is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV radiation.

Average temperature in May
Ribeira Branca, Portugal

Average temperature in May - Ribeira Branca, Portugal
  • Average high temperature in May: 23.8°C

The warmest month (with the highest average high temperature) is August (31.3°C).
The month with the lowest average high temperature is January (13.7°C).

  • Average low temperature in May: 12°C

The month with the highest average low temperature is July (15.3°C).
The coldest months (with the lowest average low temperature) are January and February (6.2°C).

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Average pressure in May
Ribeira Branca, Portugal

Average pressure in May - Ribeira Branca, Portugal
  • Average pressure in May: 1016.2mbar

The month with the highest atmospheric pressure is December (1022.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed in May
Ribeira Branca, Portugal

Average wind speed in May - Ribeira Branca, Portugal
  • Average wind speed in May: 12.3km/h

The windiest month (with the highest average wind speed) is July (13.3km/h).
The calmest month (with the lowest average wind speed) is October (10.5km/h).

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Average humidity in May
Ribeira Branca, Portugal

Average humidity in May - Ribeira Branca, Portugal
  • Average humidity in May: 68%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in May
Ribeira Branca, Portugal

Average rainfall in May - Ribeira Branca, Portugal
  • Average rainfall in May: 32mm

The wettest month (with the highest rainfall) is November (66mm).
The driest months (with the least rainfall) are July and August (4mm).

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Average rainfall days in May
Ribeira Branca, Portugal

Average rainfall days in May - Ribeira Branca, Portugal
  • Average rainfall days in May: 9.5 days

The month with the highest number of rainy days is April (14.3 days).
The month with the least rainy days is August (3 days).

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Average daylight in May /
Average sunshine in May
Ribeira Branca, Portugal

Average daylight in May / Average sunshine in May - Ribeira Branca, Portugal
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 9.9h

The month with the most sunshine is July (Average sunshine: 11.1h).
The month with the least sunshine is January (Average sunshine: 4.9h).

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Average sunshine days in May
Ribeira Branca, Portugal

Average sunshine days in May - Ribeira Branca, Portugal
  • Average sunshine days in May: 19.8 days

The month with the most sunshine days is July (27.6 days).
The month with the least sunshine days is April (14 days).

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Average UV index in May
Ribeira Branca, Portugal

Average UV index in May - Ribeira Branca, Portugal
  • Average UV index in May: 5

Months with the highest UV index are June, July, August and September (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 May
Ribeira Branca, Portugal

Average cloud cover in May - Ribeira Branca, Portugal
  • Average cloud cover in May: 30

The month with the most cloud cover is January (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 18).

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Average visibility in May
Ribeira Branca, Portugal

Average visibility in May - Ribeira Branca, Portugal
  • Average visibility in May: 9km

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is January (8km).

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