Climate and monthly weather forecastRio de Onor, Portugal
Climate and monthly weather forecast
Weather in January
January, the same as December, in Rio de Onor, Portugal, is a frosty winter month, with an average temperature ranging between max 8.3°C (46.9°F) and min 1.3°C (34.3°F). With average temperatures fluctuating between a high of 8.3°C (46.9°F) and a low of 1.3°C (34.3°F), January stands out as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Rio de Onor, is another chilly month, with an average temperature fluctuating between 9.4°C (48.9°F) and 1.2°C (34.2°F). The unfolding of February shows an average high-temperature of a still chilly 9.4°C (48.9°F), indicating a slight variance from January's 8.3°C (46.9°F). Weather in February »Weather in March
March, the first month of the spring in Rio de Onor, is a cool month, with an average temperature varying between 12.6°C (54.7°F) and 2.7°C (36.9°F). As Rio de Onor welcomes March, the average high-temperature displays a subtle shift, adjusting from a chilly 9.4°C (48.9°F) in February to a fresh 12.6°C (54.7°F). Weather in March »Weather in April
April is a moderate spring month in Rio de Onor, Portugal, with an average temperature ranging between min 4.6°C (40.3°F) and max 15.5°C (59.9°F). April's arrival shows an average high-temperature of a refreshing 15.5°C (59.9°F), hardly different from the previous month. Weather in April »Weather in May
May, the last month of the spring in Rio de Onor, is a comfortable month, with temperature in the range of an average low of 8°C (46.4°F) and an average high of 19.6°C (67.3°F). The commencement of May sees a minor shift in the average high-temperature, moving from 15.5°C (59.9°F) in April to a still refreshing 19.6°C (67.3°F). Weather in May »Weather in June
June, the first month of the summer in Rio de Onor, is a moderately hot month, with temperature in the range of an average high of 23.8°C (74.8°F) and an average low of 11.2°C (52.2°F). With the onset of June, Rio de Onor observes a minor temperature ascent, with the average high-temperature adjusting from May's enjoyable 19.6°C (67.3°F) to a moderately hot 23.8°C (74.8°F). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Rio de Onor, Portugal, with an average temperature ranging between max 28.2°C (82.8°F) and min 13.8°C (56.8°F). As Rio de Onor welcomes July, the average high-temperature sees a modest rise, transitioning from 23.8°C (74.8°F) in June to a still moderately hot 28.2°C (82.8°F). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Rio de Onor, Portugal, with an average temperature fluctuating between 13.4°C (56.1°F) and 28.3°C (82.9°F). In Rio de Onor, Portugal, temperatures reach their average annual highs in August, measuring 28.3°C (82.9°F) and a minimum average of 13.4°C (56.1°F). In August, the average heat index is evaluated at 29°C (84.2°F). Weather in August »Weather in September
September, the first month of the autumn in Rio de Onor, is still a warm month, with an average temperature fluctuating between 24.3°C (75.7°F) and 11.5°C (52.7°F). September brings a minor shift in the average high-temperature, adjusting from 28.3°C (82.9°F) in August to a still warm 24.3°C (75.7°F). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Rio de Onor, Portugal, with an average temperature varying between 8.6°C (47.5°F) and 18.3°C (64.9°F). October comes with a drop in the average high-temperature, falling from September's moderately hot 24.3°C (75.7°F) to a comfortable 18.3°C (64.9°F). Weather in October »Weather in November
November, the last month of the autumn in Rio de Onor, is also a fresh month, with an average temperature varying between 11°C (51.8°F) and 4.3°C (39.7°F). As November begins, there is a decrease in the average high-temperature, falling from a comfortable 18.3°C (64.9°F) in October to a cool 11°C (51.8°F). Weather in November »Weather in December
December, the first month of the winter in Rio de Onor, is still a chilly month, with temperature in the range of an average low of 2°C (35.6°F) and an average high of 8.9°C (48°F). In December, Rio de Onor experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 11°C (51.8°F) in November to a frosty 8.9°C (48°F). 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, known for its average high temperature of 8.3°C (46.9°F) and an average low temperature of 1.3°C (34.3°F), is the coldest month in Rio de Onor, Portugal.
With an average relative humidity of 85%, January is the most humid month in Rio de Onor, Portugal.
In Rio de Onor, during the entire year, the rain falls for 141.7 days and collects up to 532mm (20.94") of precipitation.
January through March, November and December are months with snowfall in Rio de Onor.
In Rio de Onor, during the entire year, snow falls for 6.4 days and aggregates up to 51mm (2.01") of snow.
The month with the least sunshine in Rio de Onor, Portugal, is January, with an average of 4.8h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rio de Onor.
The month with the most snowfall is February, when snow falls for 2 days and typically aggregates up to 19mm (0.75") of snow.
April through October are months without snowfall.
June has the longest days of the year in Rio de Onor, Portugal, with an average of 15h and 12min of daylight.
The month with the most sunshine in Rio de Onor, Portugal, is July, with an average of 11.8h of sunshine.
July is the month with the highest UV index in Rio de Onor, Portugal, with an average maximum UV index of 6.
The month of August sees the average highest temperatures, reaching 28.3°C (82.9°F) at the peak and 13.4°C (56.1°F) at the low.
With an average relative humidity of 52%, August is the least humid month.
August is the month with the least rainfall. Rain falls for 4.2 days and accumulates 11mm (0.43") of precipitation.
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 in Rio de Onor. Rain falls for 15.8 days and accumulates 73mm (2.87") of precipitation.
December has the shortest days of the year in Rio de Onor, with an average of 9h and 12min of daylight.
Average temperature
Rio de Onor, Portugal
The warmest month (with the highest average high temperature) is August (28.3°C).
The month with the lowest average high temperature is January (8.3°C).
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure
Rio de Onor, Portugal
- Average pressure in January:
1021.9mbar - Average pressure in February:
1019.9mbar - Average pressure in March:
1017.8mbar - Average pressure in April:
1015.4mbar - Average pressure in May:
1016.7mbar - Average pressure in June:
1016.9mbar
- Average pressure in July:
1017.1mbar - Average pressure in August:
1017.2mbar - Average pressure in September:
1017.8mbar - Average pressure in October:
1016.8mbar - Average pressure in November:
1017.2mbar - Average pressure in December:
1022.9mbar
The month with the highest atmospheric pressure is December (1022.9mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed
Rio de Onor, Portugal
- Average wind speed in January:
9.7km/h - Average wind speed in February:
10.9km/h - Average wind speed in March:
11.2km/h - Average wind speed in April:
9.9km/h - Average wind speed in May:
9.4km/h - Average wind speed in June:
9.3km/h
- Average wind speed in July:
8.9km/h - Average wind speed in August:
9km/h - Average wind speed in September:
8.4km/h - Average wind speed in October:
8.6km/h - Average wind speed in November:
10.3km/h - Average wind speed in December:
8.8km/h
The windiest month (with the highest average wind speed) is March (11.2km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).
Average humidity
Rio de Onor, Portugal
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (52%).
Average rainfall
Rio de Onor, Portugal
The wettest month (with the highest rainfall) is November (73mm).
The driest month (with the least rainfall) is August (11mm).
Average rainfall days
Rio de Onor, Portugal
- Average rainfall days in January:
14.3 days - Average rainfall days in February:
11.6 days - Average rainfall days in March:
15.7 days - Average rainfall days in April:
17.6 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
10 days
- Average rainfall days in July:
5.8 days - Average rainfall days in August:
4.2 days - Average rainfall days in September:
7.2 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
15.8 days - Average rainfall days in December:
12.7 days
The month with the highest number of rainy days is April (17.6 days).
The month with the least rainy days is August (4.2 days).
Average snowfall
Rio de Onor, Portugal
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Rio de Onor, Portugal
- Average snowfall days in January:
2.1 days - Average snowfall days in February:
2 days - Average snowfall days in March:
0.7 days - Average snowfall days in April:
0.1 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 days - Average snowfall days in November:
0.5 days - Average snowfall days in December:
1 days
The month with the highest number of snowfall days is January (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Rio de Onor, Portugal
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
4h and 48min - Average sunshine in February:
6h and 12min - Average sunshine in March:
7h and 18min - Average sunshine in April:
8h and 48min - Average sunshine in May:
10h and 6min - Average sunshine in June:
11h and 12min
- Average sunshine in July:
11h and 48min - Average sunshine in August:
11h and 36min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 24min - Average sunshine in November:
5h and 6min - Average sunshine in December:
5h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days
Rio de Onor, Portugal
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
13.6 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
17.1 days
- Average sunshine days in July:
23.2 days - Average sunshine days in August:
24.5 days - Average sunshine days in September:
20.8 days - Average sunshine days in October:
17.5 days - Average sunshine days in November:
11.4 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is August (24.5 days).
The month with the least sunshine days is April (10.8 days).
Average UV index
Rio de Onor, Portugal
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Rio de Onor, Portugal
The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility
Rio de Onor, Portugal
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, November and December (8km).
