May weather forecast and climate
Ratoeira, Portugal

Weather in May

The last month of the spring, May, is a comfortable month in Ratoeira, Portugal, with average temperature fluctuating between 8.3°C (46.9°F) and 19.8°C (67.6°F).

Temperature

In May, the average high-temperature marginally rises, from a mild 15.5°C (59.9°F) in April, to a comfortable 19.8°C (67.6°F). In May, in Ratoeira, the average low-temperature is 8.3°C (46.9°F).

Humidity

In May, the average relative humidity is 70%.

Rainfall

In Ratoeira, it is raining for 10.8 days, with typically 32mm (1.26") of accumulated precipitation. In Ratoeira, during the entire year, the rain falls for 113.4 days and collects up to 421mm (16.57") of precipitation.

Snowfall

May through October are months without snowfall in Ratoeira.

Daylight

In Ratoeira, the average length of the day is 14.5h.

Sunshine

In May, the average sunshine in Ratoeira, Portugal, is 9.4h.

UV index

In May, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV rays for the ordinary person.
Note: In May, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. 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 temperature in May in Ratoeira?

In May, the average high-temperature is 19.8°C (67.6°F), and the average low-temperature is 8.3°C (46.9°F).

What is the average humidity in May in Ratoeira?

The average relative humidity in May in Ratoeira is 70%.

How many days does it rain in May in Ratoeira?

In Ratoeira, Portugal, in May, it is raining for 10.8 days, with typically 32mm (1.26") of accumulated precipitation.

Does it snow in Ratoeira in May?

In May, it doesn't snow. April is the latest month when it typically snows.

When it does not snow in Ratoeira?

May through October are months without snowfall.

What is the average length of the day in May in Ratoeira?

The average length of the day in May in Ratoeira is 14.5h.

How many hours of sunshine does Ratoeira have in May?

In Ratoeira, the average sunshine in May is 9.4h.

How high is the UV index in May in Ratoeira?

In May, the average daily maximum UV index in Ratoeira is 5. A UV Index reading of 3 to 5 represents a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in May
Ratoeira, Portugal

Average temperature in May - Ratoeira, Portugal
  • Average high temperature in May: 19.8°C

The warmest month (with the highest average high temperature) is August (29.2°C).
The month with the lowest average high temperature is January (8.7°C).

  • Average low temperature in May: 8.3°C

The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (1.8°C).

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Average pressure in May
Ratoeira, Portugal

Average pressure in May - Ratoeira, Portugal
  • Average pressure in May: 1016.1mbar

The month with the highest atmospheric pressure is December (1023.1mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in May
Ratoeira, Portugal

Average wind speed in May - Ratoeira, Portugal
  • Average wind speed in May: 10.8km/h

The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is September (9.1km/h).

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Average humidity in May
Ratoeira, Portugal

Average humidity in May - Ratoeira, Portugal
  • Average humidity in May: 70%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (50%).

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Average rainfall in May
Ratoeira, Portugal

Average rainfall in May - Ratoeira, Portugal
  • Average rainfall in May: 32mm

The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is August (6mm).

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Average rainfall days in May
Ratoeira, Portugal

Average rainfall days in May - Ratoeira, Portugal
  • Average rainfall days in May: 10.8 days

The month with the highest number of rainy days is April (16.2 days).
The month with the least rainy days is August (2.7 days).

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Average snowfall in May
Ratoeira, Portugal

Average snowfall in May - Ratoeira, Portugal
  • Average snowfall in May: 0mm

Months with the highest snowfall are January and February (44mm).
Months with the least snowfall are May, June, July, August, September and October (0mm).

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Average snowfall days in May
Ratoeira, Portugal

Average snowfall days in May - Ratoeira, Portugal
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (3.9 days).
Months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in May /
Average sunshine in May
Ratoeira, Portugal

Average daylight in May / Average sunshine in May - Ratoeira, Portugal
  • Average daylight in May: 14.5h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in May: 9.4h

Months with the most sunshine are July and August (Average sunshine: 11.6h).
The month with the least sunshine is January (Average sunshine: 4.3h).

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Average sunshine days in May
Ratoeira, Portugal

Average sunshine days in May - Ratoeira, Portugal
  • Average sunshine days in May: 18.5 days

The month with the most sunshine days is August (27.1 days).
The month with the least sunshine days is April (12.5 days).

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Average UV index in May
Ratoeira, Portugal

Average UV index in May - Ratoeira, Portugal
  • Average UV index in May: 5

Months with the highest UV index are July and August (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 May
Ratoeira, Portugal

Average cloud cover in May - Ratoeira, Portugal
  • Average cloud cover in May: 35

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 12).

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Average visibility in May
Ratoeira, Portugal

Average visibility in May - Ratoeira, Portugal
  • Average visibility in May: 9km

Months with the highest visibility are July, August and September (10km).
Months with the lowest visibility are January, February, April, November and December (8km).

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