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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 daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Oeiras, Portugal, is a moderate winter month, with an average temperature varying between 11.3°C (52.3°F) and 14.8°C (58.6°F). Temperature records mark January as the coldest month, with highs averaging 14.8°C (58.6°F) and lows at 11.3°C (52.3°F). Weather in January »
Weather in February
February, the last month of the winter in Oeiras, is also a moderate month, with temperature in the range of an average high of 14.9°C (58.8°F) and an average low of 10.8°C (51.4°F). February denotes a minimal variation in the average high-temperature to a still refreshing 14.9°C (58.8°F) from January's 14.8°C (58.6°F). Weather in February »
Weather in March
March, the first month of the spring in Oeiras, is a refreshing month, with an average temperature fluctuating between 11.8°C (53.2°F) and 16.1°C (61°F). The transition into March shows a subtle variation to a still refreshing 16.1°C (61°F) from February's 14.9°C (58.8°F) in the average high-temperature. Weather in March »
Weather in April
April, like March, in Oeiras, Portugal, is another refreshing spring month, with an average temperature ranging between min 13.1°C (55.6°F) and max 17.6°C (63.7°F). The transition into April shows a subtle variation to a still refreshing 17.6°C (63.7°F) from March's 16.1°C (61°F) in the average high-temperature. Weather in April »
Weather in May
May, the last month of the spring in Oeiras, is an agreeable month, with an average temperature varying between 15.3°C (59.5°F) and 20.1°C (68.2°F). May's weather displays an average high-temperature of a pleasant 20.1°C (68.2°F), slightly varied from April's 17.6°C (63.7°F). Weather in May »
Weather in June
The first month of the summer, June, is still a pleasant month in Oeiras, Portugal, with temperature in the range of an average high of 21.8°C (71.2°F) and an average low of 17°C (62.6°F). In June, the average high-temperature registers at a still pleasant 21.8°C (71.2°F), nearly identical to May's 20.1°C (68.2°F). Weather in June »
Weather in July
July in Oeiras, Portugal, is a warm summer month, with temperature in the range of an average high of 23.6°C (74.5°F) and an average low of 18.1°C (64.6°F). July commences with an average high-temperature of a warm 23.6°C (74.5°F), showing little deviation from June's 21.8°C (71.2°F). Weather in July »
Weather in August
August, the last month of the summer in Oeiras, is another warm month, with an average temperature ranging between min 18.6°C (65.5°F) and max 24.5°C (76.1°F). Oeiras registers the highest average temperatures during the month of August, with peaks of 24.5°C (76.1°F) and lows of 18.6°C (65.5°F). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Oeiras, Portugal, with temperature in the range of an average low of 18.2°C (64.8°F) and an average high of 23.6°C (74.5°F). September brings a marginal elevation to a still warm 23.6°C (74.5°F) from August's 24.5°C (76.1°F) in Oeiras's average high-temperatures. Weather in September »
Weather in October
October, like September, is another pleasant autumn month in Oeiras, Portugal, with temperature in the range of an average high of 21.5°C (70.7°F) and an average low of 17.5°C (63.5°F). Entering October, Oeiras's average high-temperature reads a pleasant 21.5°C (70.7°F), indicating a close resemblance to the previous month's climate. Weather in October »
Weather in November
The last month of the autumn, November, is another comfortable month in Oeiras, Portugal, with an average temperature ranging between min 14.1°C (57.4°F) and max 17.4°C (63.3°F). The start of November signals a gentle decrease in the average high-temperature, transitioning from an agreeable 21.5°C (70.7°F) in October to a comfortable 17.4°C (63.3°F). Weather in November »
Weather in December
December, the first month of the winter in Oeiras, is still a mild month, with temperature in the range of an average high of 15.7°C (60.3°F) and an average low of 12°C (53.6°F). With December's arrival, Oeiras notes an average high-temperature of a still refreshing 15.7°C (60.3°F), closely following the trend of the preceding month. Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Oeiras?
The coldest period is January, when temperatures fluctuate between an average high of 14.8°C (58.6°F) and a low of 11.3°C (52.3°F).
What is the most humid month in Oeiras?
The months with the highest humidity in Oeiras are January, April, July and December, with an average relative humidity of 75%.
How much does it rain in Oeiras?
In Oeiras, during the entire year, the rain falls for 85.8 days and collects up to 215mm (8.46") of precipitation.
What is the month with the least sunshine in Oeiras?
The month with the least sunshine in Oeiras is January, with an average of 5.5h of sunshine.
What is the month with the lowest UV index in Oeiras?
The months with the lowest UV index in Oeiras are January through March, November and December, with an average maximum UV index of 4.
What is the least humid month in Oeiras?
The months with the lowest humidity in Oeiras are May and October, with an average relative humidity of 72%.
When are the longest days in Oeiras?
June has the longest days of the year, with an average of 14h and 48min of daylight.
When is the highest UV index in Oeiras?
June through September, with an average maximum UV index of 6, are months with the highest UV index.
What is the driest month in Oeiras?
July is the month with the least rainfall in Oeiras, Portugal. Rain falls for 2.5 days and accumulates 2mm (0.08") of precipitation.
What month has the most sunshine in Oeiras?
The month with the most sunshine in Oeiras is July, with an average of 11.4h of sunshine.
What month is the hottest in Oeiras?
Oeiras's temperature records reveal August as the warmest month, marked by average highs of 24.5°C (76.1°F) and lows of 18.6°C (65.5°F).
When is Daylight Saving Time (DST) in Oeiras?
On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends in Oeiras, Portugal, 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 wettest month in Oeiras?
The month with the most rainfall is November, when the rain falls for 12.4 days and typically aggregates up to 44mm (1.73") of precipitation.
What is the month with the shortest days in Oeiras?
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Oeiras, Portugal
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (14.8°C).
The month with the highest average low temperature is August (18.6°C).
The coldest month (with the lowest average low temperature) is February (10.8°C).
Average pressure
Oeiras, Portugal
- Average pressure in January:
1022.5mbar - Average pressure in February:
1020.5mbar - Average pressure in March:
1018mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.6mbar - Average pressure in June:
1017.3mbar
- Average pressure in July:
1017.1mbar - Average pressure in August:
1016.8mbar - Average pressure in September:
1017mbar - Average pressure in October:
1016mbar - Average pressure in November:
1017.5mbar - Average pressure in December:
1022.5mbar
The months with the highest atmospheric pressure are January and December (1022.5mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed
Oeiras, Portugal
- Average wind speed in January:
18.9km/h - Average wind speed in February:
19.5km/h - Average wind speed in March:
18.7km/h - Average wind speed in April:
17.5km/h - Average wind speed in May:
18.2km/h - Average wind speed in June:
18.2km/h
- Average wind speed in July:
19.3km/h - Average wind speed in August:
18.3km/h - Average wind speed in September:
15.8km/h - Average wind speed in October:
15.6km/h - Average wind speed in November:
18.6km/h - Average wind speed in December:
17.9km/h
The windiest month (with the highest average wind speed) is February (19.5km/h).
The calmest month (with the lowest average wind speed) is October (15.6km/h).
Average humidity
Oeiras, Portugal
The months with the highest relative humidity are January, April, July and December (75%).
The months with the lowest relative humidity are May and October (72%).
Average rainfall
Oeiras, Portugal
The wettest month (with the highest rainfall) is November (44mm).
The driest month (with the least rainfall) is July (2mm).
Average rainfall days
Oeiras, Portugal
- Average rainfall days in January:
9 days - Average rainfall days in February:
7 days - Average rainfall days in March:
9.7 days - Average rainfall days in April:
10.7 days - Average rainfall days in May:
6.9 days - Average rainfall days in June:
4.3 days
- Average rainfall days in July:
2.5 days - Average rainfall days in August:
1.9 days - Average rainfall days in September:
4.9 days - Average rainfall days in October:
8.2 days - Average rainfall days in November:
12.4 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is November (12.4 days).
The month with the least rainy days is August (1.9 days).
Average daylight / Average sunshine
Oeiras, Portugal
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 3min - Average sunshine in February:
7h and 4min - Average sunshine in March:
8h and 1min - Average sunshine in April:
8h and 5min - Average sunshine in May:
10h and 4min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 2min - Average sunshine in August:
11h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
7h and 2min - Average sunshine in November:
5h and 5min - Average sunshine in December:
6h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days
Oeiras, Portugal
- Average sunshine days in January:
20.3 days - Average sunshine days in February:
19.9 days - Average sunshine days in March:
19.7 days - Average sunshine days in April:
17.1 days - Average sunshine days in May:
22.5 days - Average sunshine days in June:
24.7 days
- Average sunshine days in July:
27.6 days - Average sunshine days in August:
28 days - Average sunshine days in September:
24.5 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
15.6 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is August (28 days).
The month with the least sunshine days is November (15.6 days).
Average UV index
Oeiras, Portugal
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 4).
Average cloud cover
Oeiras, Portugal
The month with the most cloud cover is January (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 13).
Average visibility
Oeiras, Portugal
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Oeiras, Portugal
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