Climate and monthly weather forecastSeixal, Portugal
Climate and monthly weather forecast
Weather in January
January, like December, is another mild winter month in Seixal, Portugal, with an average temperature fluctuating between 14.9°C (58.8°F) and 10.2°C (50.4°F). Seixal notes the coldest temperatures in January, with a high average of 14.9°C (58.8°F) and a low of 10.2°C (50.4°F). Weather in January »Weather in February
February, the last month of the winter in Seixal, is another mild month, with an average temperature fluctuating between 15.3°C (59.5°F) and 9.8°C (49.6°F). The start of February marks an average high-temperature of a still mild 15.3°C (59.5°F), hardly distinguishable from the conditions in January. Weather in February »Weather in March
The first month of the spring, March, is an enjoyable month in Seixal, Portugal, with temperature in the range of an average high of 17.3°C (63.1°F) and an average low of 11°C (51.8°F). As March takes its course, Seixal's average high-temperature registers at a comfortable 17.3°C (63.1°F), closely aligning with the preceding month. Weather in March »Weather in April
April, like March, in Seixal, Portugal, is another comfortable spring month, with an average temperature fluctuating between 12.4°C (54.3°F) and 18.6°C (65.5°F). With the onset of April, the average high-temperature stands at a still enjoyable 18.6°C (65.5°F), closely aligned with March's 17.3°C (63.1°F). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Seixal, Portugal, with an average temperature ranging between min 14.8°C (58.6°F) and max 21.8°C (71.2°F). May's onset brings a subtle temperature rise, moving from a refreshing 18.6°C (65.5°F) in April to an agreeable 21.8°C (71.2°F). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Seixal, Portugal, with temperature in the range of an average high of 23.8°C (74.8°F) and an average low of 16.8°C (62.2°F). In June, Seixal's weather conditions record an average high-temperature of a moderately hot 23.8°C (74.8°F), demonstrating little divergence from the preceding month. Weather in June »Weather in July
July, the same as June, is another warm summer month in Seixal, Portugal, with an average temperature ranging between min 17.9°C (64.2°F) and max 25.9°C (78.6°F). Seixal notes an average high-temperature of a still moderately hot 25.9°C (78.6°F) in July, hardly diverging from June. Weather in July »Weather in August
August, the last month of the summer in Seixal, is another warm month, with temperature in the range of an average high of 27.1°C (80.8°F) and an average low of 17.8°C (64°F). Seixal registers the highest average temperatures during the month of August, with peaks of 27.1°C (80.8°F) and lows of 17.8°C (64°F). For most parts of August, the heat index is evaluated at 29°C (84.2°F). Weather in August »Weather in September
September, the first month of the autumn in Seixal, is also a moderately hot month, with temperature in the range of an average low of 17.5°C (63.5°F) and an average high of 25.6°C (78.1°F). September's weather displays an average high-temperature of a still moderately hot 25.6°C (78.1°F), slightly varied from August's 27.1°C (80.8°F). Weather in September »Weather in October
October, like September, is another pleasant autumn month in Seixal, Portugal, with an average temperature varying between 22.7°C (72.9°F) and 16.8°C (62.2°F). October's commencement is accompanied by an average high-temperature of an agreeable 22.7°C (72.9°F), diverging marginally from September's 25.6°C (78.1°F). Weather in October »Weather in November
The last month of the autumn, November, is another comfortable month in Seixal, Portugal, with an average temperature fluctuating between 13.1°C (55.6°F) and 17.8°C (64°F). November's onset corresponds with a subtle shift in the average high-temperature, slightly moving from an agreeable 22.7°C (72.9°F) in October to a refreshing 17.8°C (64°F). Weather in November »Weather in December
December, the first month of the winter in Seixal, is still a mild month, with an average temperature ranging between min 10.9°C (51.6°F) and max 15.7°C (60.3°F). The onset of December brings with it an average high-temperature of a moderate 15.7°C (60.3°F), showing a negligible variation from the month before. Weather in December »Updated: Feb 2, 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
January is Seixal's coldest month, registering average high temperatures of 14.9°C (58.8°F) and lows of 10.2°C (50.4°F).
January is the most humid month in Seixal, with an average relative humidity of 76%.
In Seixal, during the entire year, the rain falls for 54.2 days and collects up to 61mm (2.4") of precipitation.
January has the least sunshine of the year, with an average of 5.4h of sunshine.
The months with the lowest UV index in Seixal, Portugal, are January through March, November and December, with an average maximum UV index of 4.
May through September, with an average maximum UV index of 6, are months with the highest UV index.
The months with the least rainfall in Seixal, Portugal, are June through August Rain falls for 2.2 days and accumulates 1mm (0.04") of rain.
With an average of 14h and 48min of daylight, June has the longest days of the year in Seixal, Portugal.
July has the most sunshine of the year, with an average of 11.4h of sunshine.
The highest temperatures in Seixal are recorded in August, with averages reaching a high of 27.1°C (80.8°F) and a low of 17.8°C (64°F).
The least humid month in Seixal, Portugal, is August, with an average relative humidity of 68%.
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.
November is the month with the most rainfall. Rain falls for 9.3 days and accumulates 15mm (0.59") of precipitation.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Seixal, Portugal
The warmest month (with the highest average high temperature) is August (27.1°C).
The month with the lowest average high temperature is January (14.9°C).
The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is February (9.8°C).
Average pressure
Seixal, Portugal
- Average pressure in January:
1022.5mbar - Average pressure in February:
1020.4mbar - Average pressure in March:
1017.9mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1016.5mbar - Average pressure in June:
1017.2mbar
- Average pressure in July:
1016.9mbar - Average pressure in August:
1016.6mbar - Average pressure in September:
1016.9mbar - Average pressure in October:
1016mbar - Average pressure in November:
1017.5mbar - Average pressure in December:
1022.6mbar
The month with the highest atmospheric pressure is December (1022.6mbar).
The month with the lowest atmospheric pressure is April (1015.7mbar).
Average wind speed
Seixal, Portugal
- Average wind speed in January:
16km/h - Average wind speed in February:
16.5km/h - Average wind speed in March:
16.1km/h - Average wind speed in April:
15km/h - Average wind speed in May:
15.4km/h - Average wind speed in June:
15.5km/h
- Average wind speed in July:
16.1km/h - Average wind speed in August:
15km/h - Average wind speed in September:
13.1km/h - Average wind speed in October:
13.3km/h - Average wind speed in November:
15.6km/h - Average wind speed in December:
15km/h
The windiest month (with the highest average wind speed) is February (16.5km/h).
The calmest month (with the lowest average wind speed) is September (13.1km/h).
Average humidity
Seixal, Portugal
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (68%).
Average rainfall
Seixal, Portugal
The wettest month (with the highest rainfall) is November (15mm).
The driest months (with the least rainfall) are June, July and August (1mm).
Average rainfall days
Seixal, Portugal
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
2.9 days - Average rainfall days in March:
6.3 days - Average rainfall days in April:
7.4 days - Average rainfall days in May:
3.8 days - Average rainfall days in June:
2.2 days
- Average rainfall days in July:
1.6 days - Average rainfall days in August:
0.8 days - Average rainfall days in September:
3.1 days - Average rainfall days in October:
6.1 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
5.1 days
The month with the highest number of rainy days is November (9.3 days).
The month with the least rainy days is August (0.8 days).
Average daylight / Average sunshine
Seixal, Portugal
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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 24min - Average sunshine in February:
7h and 24min - Average sunshine in March:
8h and 6min - Average sunshine in April:
8h and 48min - Average sunshine in May:
10h and 36min - Average sunshine in June:
11h and 6min
- Average sunshine in July:
11h and 24min - Average sunshine in August:
11h and 6min - Average sunshine in September:
9h and 24min - Average sunshine in October:
7h and 18min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h and 54min
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 24min).
Average sunshine days
Seixal, Portugal
- Average sunshine days in January:
21.9 days - Average sunshine days in February:
21.8 days - Average sunshine days in March:
22.5 days - Average sunshine days in April:
21.1 days - Average sunshine days in May:
24.7 days - Average sunshine days in June:
26.3 days
- Average sunshine days in July:
29.7 days - Average sunshine days in August:
29.3 days - Average sunshine days in September:
26.3 days - Average sunshine days in October:
22.2 days - Average sunshine days in November:
17.7 days - Average sunshine days in December:
23.5 days
The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is November (17.7 days).
Average UV index
Seixal, Portugal
The months with the highest UV index are May, 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
Seixal, 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
Seixal, 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).
