Monthly weather forecast and climate
Viana do Alentejo, Portugal

Weather in January

January, the same as December, in Viana do Alentejo, Portugal, is another mild winter month, with temperature in the range of an average low of 5.6°C (42.1°F) and an average high of 13.7°C (56.7°F). January is the coldest month, with an average high-temperature of 13.7°C (56.7°F) and an average low-temperature of 5.6°C (42.1°F). Weather in January »

Weather in February

February, the last month of the winter, in Viana do Alentejo, is another mild month, with average temperature varying between 14.4°C (57.9°F) and 5.2°C (41.4°F). In Viana do Alentejo, the average high-temperature is almost the same as in January - a still mild 14.4°C (57.9°F). Weather in February »

Weather in March

March, the first month of the spring, in Viana do Alentejo, is a comfortable month, with average temperature fluctuating between 6.6°C (43.9°F) and 17°C (62.6°F). In March, the average high-temperature is almost the same as in February - an enjoyable 17°C (62.6°F). Weather in March »

Weather in April

April, the same as March, is another comfortable spring month in Viana do Alentejo, Portugal, with average temperature fluctuating between 8.6°C (47.5°F) and 19.8°C (67.6°F). In April, the average high-temperature is essentially the same as in March - a still comfortable 19.8°C (67.6°F). Weather in April »

Weather in May

May, the last month of the spring, in Viana do Alentejo, is a warm month, with average temperature varying between 12°C (53.6°F) and 24.8°C (76.6°F). In Viana do Alentejo, the average high-temperature in May increases, from a comfortable 19.8°C (67.6°F) in April, to a moderately hot 24.8°C (76.6°F). Weather in May »

Weather in June

The first month of the summer, June, is still a warm month in Viana do Alentejo, Portugal, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 15.3°C (59.5°F). In June, the average high-temperature slightly increases, from a moderately hot 24.8°C (76.6°F) in May, to a still warm 29.3°C (84.7°F). Weather in June »

Weather in July

July is a hot summer month in Viana do Alentejo, Portugal, with average temperature ranging between min 16.7°C (62.1°F) and max 33.1°C (91.6°F). In Viana do Alentejo, Portugal, the average high-temperature in July slightly increases, from a moderately hot 29.3°C (84.7°F) in June, to a tropical 33.1°C (91.6°F). Weather in July »

Weather in August

August, the last month of the summer, in Viana do Alentejo, is another hot month, with average temperature varying between 33.7°C (92.7°F) and 16.9°C (62.4°F). The warmest month is August, with an average high-temperature of 33.7°C (92.7°F) and an average low-temperature of 16.9°C (62.4°F). In August, the average heat index is evaluated at a torrid 37.4°C (99.3°F). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Viana do Alentejo, Portugal, with average temperature fluctuating between 29.9°C (85.8°F) and 16.1°C (61°F). In September, the average high-temperature marginally drops, from a tropical 33.7°C (92.7°F) in August, to a warm 29.9°C (85.8°F). Weather in September »

Weather in October

October, like September, in Viana do Alentejo, Portugal, is a moderately hot autumn month, with temperature in the range of an average low of 13.9°C (57°F) and an average high of 24.3°C (75.7°F). In Viana do Alentejo, the average high-temperature in October decreases, from 29.9°C (85.8°F) in September, to a still warm 24.3°C (75.7°F). Weather in October »

Weather in November

November, the last month of the autumn, in Viana do Alentejo, is another comfortable month, with average temperature ranging between max 17.1°C (62.8°F) and min 9.3°C (48.7°F). In Viana do Alentejo, the average high-temperature decreases, from a moderately hot 24.3°C (75.7°F) in October, to a comfortable 17.1°C (62.8°F). Weather in November »

Weather in December

The first month of the winter, December, is also a moderate month in Viana do Alentejo, Portugal, with average temperature ranging between min 6.6°C (43.9°F) and max 14.5°C (58.1°F). In December, the average high-temperature is practically the same as in November - a mild 14.5°C (58.1°F). Weather in December »
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FAQ

What is the coldest month in Viana do Alentejo?

The coldest month is January, with an average high-temperature of 13.7°C (56.7°F) and an average low-temperature of 5.6°C (42.1°F).

What is the most humid month in Viana do Alentejo?

The most humid month in Viana do Alentejo is January, with an average relative humidity of 82%.

How many days does it rain in Viana do Alentejo?

Throughout the year, in Viana do Alentejo, there are 95.6 rainfall days, and 308mm (12.13") of precipitation is accumulated.

What is the month with the least sunshine in Viana do Alentejo?

January has the least sunshine of the year in Viana do Alentejo, Portugal, with an average of 5h of sunshine.

What is the month with the lowest UV index in Viana do Alentejo?

January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Viana do Alentejo.

What is the rainiest month in Viana do Alentejo?

The month with the most rainfall in Viana do Alentejo, Portugal, is April when the rain falls for 13.4 days and typically aggregates up to 52mm (2.05") of precipitation.

When are the longest days in Viana do Alentejo?

The month with the longest days in Viana do Alentejo, Portugal, is June, with an average of 14.8h of daylight.

What is the driest month in Viana do Alentejo?

The month with the least rainfall in Viana do Alentejo, Portugal, is July when the rain falls for 2.3 days and typically collects 2mm (0.08") of precipitation.

What are the months with the most sunshine in Viana do Alentejo?

July and August, with an average of 11.4h of sunshine, are months with the most sunshine in Viana do Alentejo, Portugal.

What is the warmest month in Viana do Alentejo?

The warmest month in Viana do Alentejo is August, with an average high-temperature of 33.7°C (92.7°F) and an average low-temperature of 16.9°C (62.4°F).

What is the least humid month in Viana do Alentejo?

August is the least humid month, with an average relative humidity of 49%.

When is the highest UV index in Viana do Alentejo?

August is the month with the highest UV index, with an average maximum UV index of 7.

What is the month with the shortest days in Viana do Alentejo?

December has the shortest days of the year in Viana do Alentejo, Portugal, with an average of 9.5h of daylight.

Average temperature
Viana do Alentejo, Portugal

Average temperature - Viana do Alentejo, Portugal

The warmest month (with the highest average high temperature) is August (33.7°C).
The month with the lowest average high temperature is January (13.7°C).

The month with the highest average low temperature is August (16.9°C).
The coldest month (with the lowest average low temperature) is February (5.2°C).

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Average pressure
Viana do Alentejo, Portugal

Average pressure - Viana do Alentejo, Portugal

The month with the highest atmospheric pressure is December (1022.8mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).

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Average wind speed
Viana do Alentejo, Portugal

Average wind speed - Viana do Alentejo, Portugal

The windiest months (with the highest average wind speed) are February and March (12km/h).
The calmest month (with the lowest average wind speed) is September (9.5km/h).

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Average humidity
Viana do Alentejo, Portugal

Average humidity - Viana do Alentejo, Portugal

The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (49%).

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Average rainfall
Viana do Alentejo, Portugal

Average rainfall - Viana do Alentejo, Portugal

The wettest month (with the highest rainfall) is April (52mm).
The driest month (with the least rainfall) is July (2mm).

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Average rainfall days
Viana do Alentejo, Portugal

Average rainfall days - Viana do Alentejo, Portugal

The month with the highest number of rainy days is March (13.8 days).
The month with the least rainy days is August (2 days).

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Average daylight / Average sunshine
Viana do Alentejo, Portugal

Average daylight / Average sunshine - Viana do Alentejo, Portugal

The month with the longest days is June (Average daylight: 14.8h).
The month with the shortest days is December (Average daylight: 9.5h).

Months with the most sunshine are July and August (Average sunshine: 11.4h).
The month with the least sunshine is January (Average sunshine: 5h).

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Average sunshine days
Viana do Alentejo, Portugal

Average sunshine days - Viana do Alentejo, Portugal

The month with the most sunshine days is July (28.8 days).
The month with the least sunshine days is April (15.3 days).

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Average UV index
Viana do Alentejo, Portugal

Average UV index - Viana do Alentejo, Portugal

The month with the highest UV index is August (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 3).

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Average visibility
Viana do Alentejo, Portugal

Average visibility - Viana do Alentejo, Portugal

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

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