May weather forecast and climate
São Fiel, Portugal

Weather in May

The last month of the spring, May, is a warm month in São Fiel, Portugal, with average temperature fluctuating between 23.1°C (73.6°F) and 11.3°C (52.3°F).

Temperature

In São Fiel, the average high-temperature marginally rises, from a comfortable 18.5°C (65.3°F) in April, to a moderately hot 23.1°C (73.6°F). In May, the average low-temperature is 11.3°C (52.3°F).

Humidity

The average relative humidity in São Fiel is 63%.

Rainfall

In May, the rain falls for 7.9 days. Throughout May, 21mm (0.83") of precipitation is accumulated. In São Fiel, during the entire year, the rain falls for 97 days and collects up to 369mm (14.53") of precipitation.

Snowfall

In São Fiel, Portugal, snow does not fall in February through December.

Daylight

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

Sunshine

The average sunshine in May is 10.2h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to the UV radiation for the ordinary person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.
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FAQ

What is the temperature in May in São Fiel?

The average high-temperature, in May, in São Fiel, is 23.1°C (73.6°F), while the average low-temperature is 11.3°C (52.3°F).

What is the average humidity in May in São Fiel?

The average relative humidity in May is 63%.

How many days does it rain in May in São Fiel?

In São Fiel, during May, the rain falls for 7.9 days and regularly aggregates up to 21mm (0.83") of precipitation.

When it does not snow in São Fiel?

February through December are months without snowfall in São Fiel.

How many hours of daylight does São Fiel have in May?

The average length of the day in May in São Fiel, Portugal, is 14.4h.

How long on average sun shines in May in São Fiel?

The average sunshine in May in São Fiel is 10.2h.

When is the highest UV index in São Fiel?

Months with the highest UV index in São Fiel, Portugal, are May through August, with an average maximum UV index of 6.

What is the UV index intensity in May in São Fiel?

In São Fiel, the average daily maximum UV index in May is 6. A UV Index reading of 6 to 7 represents a high health threat from unprotected exposure to the UV radiation.

Average temperature in May
São Fiel, Portugal

Average temperature in May - São Fiel, Portugal
  • Average high temperature in May: 23.1°C

The warmest month (with the highest average high temperature) is August (32.8°C).
The month with the lowest average high temperature is January (11.6°C).

  • Average low temperature in May: 11.3°C

The month with the highest average low temperature is July (17.2°C).
The coldest month (with the lowest average low temperature) is January (3.9°C).

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Average pressure in May
São Fiel, Portugal

Average pressure in May - São Fiel, Portugal
  • Average pressure in May: 1015.9mbar

The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).

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Average wind speed in May
São Fiel, Portugal

Average wind speed in May - São Fiel, Portugal
  • Average wind speed in May: 9.9km/h

The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).

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Average humidity in May
São Fiel, Portugal

Average humidity in May - São Fiel, Portugal
  • Average humidity in May: 63%

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (44%).

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Average rainfall in May
São Fiel, Portugal

Average rainfall in May - São Fiel, Portugal
  • Average rainfall in May: 21mm

The wettest month (with the highest rainfall) is November (60mm).
The driest months (with the least rainfall) are July and August (3mm).

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Average rainfall days in May
São Fiel, Portugal

Average rainfall days in May - São Fiel, Portugal
  • Average rainfall days in May: 7.9 days

The month with the highest number of rainy days is November (12.3 days).
The month with the least rainy days is August (1.5 days).

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Average snowfall in May
São Fiel, Portugal

Average snowfall in May - São Fiel, Portugal
  • Average snowfall in May: 0mm

The month with the highest snowfall is January (1mm).
Months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0mm).

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Average snowfall days in May
São Fiel, Portugal

Average snowfall days in May - São Fiel, Portugal
  • Average snowfall days in May: 0 days

Months with the highest number of snowfall days are January and March (0.1 days).
Months with the least snowfall days are February, April, May, June, July, August, September, October, November and December (0 days).

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Average daylight in May /
Average sunshine in May
São Fiel, Portugal

Average daylight in May / Average sunshine in May - São Fiel, Portugal
  • Average daylight in May: 14.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in May: 10.2h

Months with the most sunshine are July and August (Average sunshine: 11.8h).
The month with the least sunshine is January (Average sunshine: 5.2h).

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Average sunshine days in May
São Fiel, Portugal

Average sunshine days in May - São Fiel, Portugal
  • Average sunshine days in May: 20.5 days

The month with the most sunshine days is August (28.3 days).
The month with the least sunshine days is April (16.6 days).

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Average UV index in May
São Fiel, Portugal

Average UV index in May - São Fiel, Portugal
  • Average UV index in May: 6

Months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in May
São Fiel, Portugal

Average cloud cover in May - São Fiel, Portugal
  • Average cloud cover in May: 26

The month with the most cloud cover is January (Cloud cover 42).
Months with the least cloud cover are July and August (Cloud cover 8).

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Average visibility in May
São Fiel, Portugal

Average visibility in May - São Fiel, Portugal
  • Average visibility in May: 9km

Months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).

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