April weather forecast and climate
Rio Bom, Portugal

Weather in April

April is an enjoyable spring month in Rio Bom, Portugal, with average temperature ranging between min 5°C (41°F) and max 16°C (60.8°F).

Temperature

In Rio Bom, the average high-temperature is essentially the same as in March - a comfortable 16°C (60.8°F). In April, in Rio Bom, the average low-temperature is 5°C (41°F).

Humidity

In April, the average relative humidity in Rio Bom is 77%.

Rainfall

In April, the rain falls for 14.6 days. Throughout April, 40mm (1.57") of precipitation is accumulated. Throughout the year, in Rio Bom, there are 127.3 rainfall days, and 455mm (17.91") of precipitation is accumulated.

Snowfall

In Rio Bom, Portugal, snow does not fall in March through December.

Daylight

The average length of the day is 13.3h.

Sunshine

In Rio Bom, Portugal, the average sunshine in April is 8.1h.

UV index

In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in April interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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 April in Rio Bom?

In Rio Bom, in April, the average high-temperature is 16°C (60.8°F), and the average low-temperature is 5°C (41°F).

What is the average humidity in April in Rio Bom?

In April, the average relative humidity is 77%.

How much does it rain in Rio Bom in April?

In Rio Bom, during April, the rain falls for 14.6 days and regularly aggregates up to 40mm (1.57") of precipitation.

When it does not snow in Rio Bom?

March through December are months without snowfall.

How many hours of daylight does Rio Bom have in April?

In April, the average length of the day in Rio Bom, Portugal, is 13.3h.

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

In April, the average sunshine is 8.1h.

What is the UV index reading in April in Rio Bom?

The average daily maximum UV index in April in Rio Bom, Portugal, is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.

Average temperature in April
Rio Bom, Portugal

Average temperature in April - Rio Bom, Portugal
  • Average high temperature in April: 16°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 April: 5°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 April
Rio Bom, Portugal

Average pressure in April - Rio Bom, Portugal
  • Average pressure in April: 1015.3mbar

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 April
Rio Bom, Portugal

Average wind speed in April - Rio Bom, Portugal
  • Average wind speed in April: 7.5km/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 April
Rio Bom, Portugal

Average humidity in April - Rio Bom, Portugal
  • Average humidity in April: 77%

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 April
Rio Bom, Portugal

Average rainfall in April - Rio Bom, Portugal
  • Average rainfall in April: 40mm

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 April
Rio Bom, Portugal

Average rainfall days in April - Rio Bom, Portugal
  • Average rainfall days in April: 14.6 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 April
Rio Bom, Portugal

Average snowfall in April - Rio Bom, Portugal
  • Average snowfall in April: 0mm

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 April
Rio Bom, Portugal

Average snowfall days in April - Rio Bom, Portugal
  • Average snowfall days in April: 0 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 April /
Average sunshine in April
Rio Bom, Portugal

Average daylight in April / Average sunshine in April - Rio Bom, Portugal
  • Average daylight in April: 13.3h

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 April: 8.1h

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 April
Rio Bom, Portugal

Average sunshine days in April - Rio Bom, Portugal
  • Average sunshine days in April: 13.6 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 April
Rio Bom, Portugal

Average UV index in April - Rio Bom, Portugal
  • Average UV index in April: 3

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 April
Rio Bom, Portugal

Average cloud cover in April - Rio Bom, Portugal
  • Average cloud cover in April: 46

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 April
Rio Bom, Portugal

Average visibility in April - Rio Bom, Portugal
  • Average visibility in April: 8km

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

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