Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
October
Weather in October
Temperature
The shift to October brings a decrease in the average high-temperature, falling from a warm 29.4°C (84.9°F) in September to a still moderately hot 23.1°C (73.6°F). Nighttime temperature lowers to an average of 13.1°C (55.6°F) in October.Humidity
The average relative humidity in October is 62%.Rainfall
In Alter do Chão, in October, it is raining for 7.1 days, with typically 26mm (1.02") of accumulated precipitation. In Alter do Chão, during the entire year, the rain falls for 78.7 days and collects up to 219mm (8.62") of precipitation.Snowfall
In Alter do Chão, Portugal, snow does not fall in April through December.Daylight
In October, the average length of the day in Alter do Chão is 11h and 10min.On the first day of October, sunrise is at 07:27 and sunset at 19:13 WEST. On the last day of the month, sunrise is at 06:57 and sunset at 17:30 WET.
Note: On Sunday, 27. October 2024, at 02:00, Daylight Saving Time ends, and the time zone changes from WEST to WET. Daylight Saving Time starts again on Sunday, 30. March 2025, at 01:00; consequently, the time zone reverts from WET to WEST.
Sunshine
In October, the average sunshine is 6.9h.UV index
In October, the average daily maximum UV index in Alter do Chão is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during October translates into the following directions:
Act with care - The suggestion to avoid sunburn is emphasized. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Alter do Chão?
What is the average humidity in October in Alter do Chão?
How many days does it rain in October in Alter do Chão?
When it does not snow in Alter do Chão?
How many hours of daylight does Alter do Chão have in October?
When is the sunrise / sunset in October in Alter do Chão?
When does Daylight Saving Time (DST) end in October in Alter do Chão?
How many hours of sunshine does Alter do Chão have in October?
How high is the UV index in October in Alter do Chão?
Average temperature in October
Alter do Chão, Portugal
- Average high temperature in October: 23.1°C
The warmest month (with the highest average high temperature) is August (33.3°C).
The month with the lowest average high temperature is January (11.9°C).
- Average low temperature in October: 13.1°C
The month with the highest average low temperature is August (17.7°C).
The coldest month (with the lowest average low temperature) is January (4.2°C).
Average pressure in October
Alter do Chão, Portugal
- Average pressure in October: 1016.1mbar
The month with the highest atmospheric pressure is December (1023mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in October
Alter do Chão, Portugal
- Average wind speed in October: 9.2km/h
The windiest month (with the highest average wind speed) is February (12.1km/h).
The calmest month (with the lowest average wind speed) is September (8.4km/h).
Average humidity in October
Alter do Chão, Portugal
- Average humidity in October: 62%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (43%).
Average rainfall in October
Alter do Chão, Portugal
- Average rainfall in October: 26mm
The wettest month (with the highest rainfall) is November (39mm).
The driest month (with the least rainfall) is July (3mm).
Average rainfall days in October
Alter do Chão, Portugal
- Average rainfall days in October: 7.1 days
The month with the highest number of rainy days is April (11.7 days).
The month with the least rainy days is July (1.7 days).
Average snowfall in October
Alter do Chão, Portugal
- Average snowfall in October: 0mm
The month with the highest snowfall is February (5mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in October
Alter do Chão, Portugal
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in October /
Average sunshine in October
Alter do Chão, Portugal
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in October
Alter do Chão, Portugal
- Average sunshine days in October: 22.8 days
The month with the most sunshine days is July (28.7 days).
The month with the least sunshine days is April (16.6 days).
Average UV index in October
Alter do Chão, Portugal
- Average UV index in October: 4
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January, February, March, November and December (UV index 3).
Average cloud cover in October
Alter do Chão, Portugal
- Average cloud cover in October: 29
The month with the most cloud cover is January (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 8).
Average visibility in October
Alter do Chão, Portugal
- Average visibility in October: 9km
The months with the highest visibility are June, July, August and September (10km).
The month with the lowest visibility is January (8km).
