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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Climate and monthly weather forecast
Weather in January
January, like December, is a frosty winter month in São Gião, Portugal, with temperature in the range of an average low of 2.3°C (36.1°F) and an average high of 9.8°C (49.6°F). January, marked by an average high-temperature of 9.8°C (49.6°F) and a low-temperature of 2.3°C (36.1°F), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in São Gião, is a cool month, with an average temperature fluctuating between 2.5°C (36.5°F) and 10.8°C (51.4°F). February's commencement is accompanied by an average high-temperature of a fresh 10.8°C (51.4°F), diverging marginally from January's 9.8°C (49.6°F). Weather in February »
Weather in March
March, the first month of the spring in São Gião, is a moderate month, with an average temperature ranging between min 3.8°C (38.8°F) and max 13.4°C (56.1°F). The onset of March manifests an average high-temperature of a refreshing 13.4°C (56.1°F), demonstrating a minor variation from the preceding month. Weather in March »
Weather in April
April in São Gião, Portugal, is a refreshing spring month, with temperature in the range of an average low of 5.4°C (41.7°F) and an average high of 16°C (60.8°F). São Gião's average high-temperature marks an enjoyable 16°C (60.8°F) with the advent of April, closely mirroring that of the preceding month. Weather in April »
Weather in May
May, the last month of the spring in São Gião, is an agreeable month, with temperature in the range of an average high of 20.5°C (68.9°F) and an average low of 8.7°C (47.7°F). May witnesses a subtle temperature ascent, adjusting from an enjoyable 16°C (60.8°F) in April to a pleasant 20.5°C (68.9°F). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in São Gião, Portugal, with temperature in the range of an average low of 11.3°C (52.3°F) and an average high of 24.6°C (76.3°F). With the onset of June, São Gião's average high-temperature sees a modest rise, moving from May's pleasant 20.5°C (68.9°F) to a moderately hot 24.6°C (76.3°F). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in São Gião, Portugal, with an average temperature ranging between max 29.3°C (84.7°F) and min 14.1°C (57.4°F). July's arrival brings a modest temperature shift, moving from a warm 24.6°C (76.3°F) in June to a still moderately hot 29.3°C (84.7°F). Weather in July »
Weather in August
August, the last month of the summer in São Gião, is also a moderately hot month, with an average temperature varying between 14.2°C (57.6°F) and 29.8°C (85.6°F). The warmest period is August, when temperatures fluctuate between an average high of 29.8°C (85.6°F) and a low of 14.2°C (57.6°F). The heat index value for August is estimated at a tropical 31°C (87.8°F). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in São Gião, Portugal, with an average temperature varying between 12.8°C (55°F) and 25.8°C (78.4°F). São Gião's weather subtly changes with the onset of September, barely falling from 29.8°C (85.6°F) in August to a still moderately hot 25.8°C (78.4°F). Weather in September »
Weather in October
October, like September, in São Gião, Portugal, is another enjoyable autumn month, with an average temperature fluctuating between 10°C (50°F) and 19.9°C (67.8°F). A moderate decline in the average high-temperature is seen during October, decreasing from a moderately hot 25.8°C (78.4°F) in September to a comfortable 19.9°C (67.8°F). Weather in October »
Weather in November
November, the last month of the autumn in São Gião, is also a fresh month, with an average temperature ranging between max 12.6°C (54.7°F) and min 5.3°C (41.5°F). São Gião's November weather comes with a decrease in average high-temperatures, moving from a comfortable 19.9°C (67.8°F) in October to a fresh 12.6°C (54.7°F). Weather in November »
Weather in December
The first month of the winter, December, is still a cool month in São Gião, Portugal, with an average temperature varying between 10.8°C (51.4°F) and 3.4°C (38.1°F). December's onset records a minor alteration in the average high-temperature to a still cool 10.8°C (51.4°F) from November's 12.6°C (54.7°F). Weather in December »
Updated: Aug 10, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
In São Gião, January is the coldest month, with temperatures averaging a high of 9.8°C (49.6°F) and a low of 2.3°C (36.1°F).
What is the most humid month?
The most humid month is January, with an average relative humidity of 85%.
How much does it rain in São Gião?
Throughout the year, there are 116.6 rainfall days, and 496mm (19.53") of precipitation is accumulated.
When does it snow?
Months with snowfall are January through April, October through December.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 4.2 days and typically aggregates up to 62mm (2.44") of snow.
How many days does it snow?
Throughout the year, there are 15.4 snowfall days, and 244mm (9.61") of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.5h of sunshine.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When it does not snow?
In São Gião, snow does not fall in May through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What is the driest month?
The months with the least rainfall are July and August Rain falls for 3.8 days and accumulates 7mm (0.28") of rain.
What is the month with the most sunshine?
The months with the most sunshine are July and August, with an average of 11.6h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are July and August, with an average maximum UV index of 6.
What part of the year is the hottest?
With its average high temperature of 29.8°C (85.6°F) and a low of 14.2°C (57.6°F), August is regarded as the warmest month.
What is the least humid month?
The least humid month is August, with an average relative humidity of 51%.
When is Daylight Saving Time (DST)?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from WEST to WET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 01:00, and the time zone reverts from WET to WEST.
What is the rainiest month?
The month with the most rainfall is December, when the rain falls for 10.5 days and typically aggregates up to 83mm (3.27") of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
São Gião, Portugal
The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (9.8°C).
The month with the highest average low temperature is August (14.2°C).
The coldest month (with the lowest average low temperature) is January (2.3°C).
Average pressure
São Gião, Portugal
- Average pressure in January:
1022.2mbar - Average pressure in February:
1020.1mbar - Average pressure in March:
1017.7mbar - Average pressure in April:
1015.2mbar - Average pressure in May:
1016.1mbar - Average pressure in June:
1016.3mbar
- Average pressure in July:
1016mbar - Average pressure in August:
1016.1mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1016.3mbar - Average pressure in November:
1017.4mbar - Average pressure in December:
1023mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed
São Gião, Portugal
- Average wind speed in January:
10.7km/h - Average wind speed in February:
11.5km/h - Average wind speed in March:
11km/h - Average wind speed in April:
9.9km/h - Average wind speed in May:
9.7km/h - Average wind speed in June:
9.1km/h
- Average wind speed in July:
8.8km/h - Average wind speed in August:
8.8km/h - Average wind speed in September:
8.3km/h - Average wind speed in October:
9.1km/h - Average wind speed in November:
10.4km/h - Average wind speed in December:
10.2km/h
The windiest month (with the highest average wind speed) is February (11.5km/h).
The calmest month (with the lowest average wind speed) is September (8.3km/h).
Average humidity
São Gião, Portugal
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (51%).
Average rainfall
São Gião, Portugal
The wettest month (with the highest rainfall) is December (83mm).
The driest months (with the least rainfall) are July and August (7mm).
Average rainfall days
São Gião, Portugal
- Average rainfall days in January:
12.8 days - Average rainfall days in February:
10 days - Average rainfall days in March:
14.2 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
10.7 days - Average rainfall days in June:
7 days
- Average rainfall days in July:
3.8 days - Average rainfall days in August:
2.5 days - Average rainfall days in September:
4.8 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
14.1 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is August (2.5 days).
Average snowfall
São Gião, Portugal
The month with the highest snowfall is January (62mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days
São Gião, Portugal
- Average snowfall days in January:
4.2 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
1.9 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.4 days - Average snowfall days in November:
1.8 days - Average snowfall days in December:
2.4 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
São Gião, Portugal
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 2min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
6h and 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
7h and 4min - Average sunshine in May:
9h and 3min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 4min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 3min - Average sunshine in November:
4h and 5min - Average sunshine in December:
5h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
São Gião, Portugal
- Average sunshine days in January:
15 days - Average sunshine days in February:
15 days - Average sunshine days in March:
14.7 days - Average sunshine days in April:
12.7 days - Average sunshine days in May:
19 days - Average sunshine days in June:
21.8 days
- Average sunshine days in July:
26.6 days - Average sunshine days in August:
27.5 days - Average sunshine days in September:
24.7 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
13.7 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is August (27.5 days).
The month with the least sunshine days is April (12.7 days).
Average UV index
São Gião, Portugal
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
São Gião, Portugal
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 12).
Average visibility
São Gião, Portugal
The months with the highest visibility are July and August (10km).
The month with the lowest visibility is January (7km).
