October weather forecast
Porto Alegre, Brazil

englishespañol中文
Share

Weather in October

October carries the Porto Alegre weather into traditional spring conditions. Temperature rises further to 24.5°C (76.1°F) and rainfall increases to 90mm (3.54"). October’s moderate heat and rain showers signal an optimal time for exploring the city’s botanical gardens and parks. The markedly warmer sea temperature brings tourists to the beaches for sunbathing and swimming. The slightly higher wind speeds make October a good time for kite flying and sailing.

Temperature

As September turns into October, the average high-temperatures rest at a moderately hot 24.5°C (76.1°F), showing a minor variation from the prior month. In Porto Alegre, the average temperature during the nights of October drops to a refreshing 14.7°C (58.5°F).

Humidity

The average relative humidity in October in Porto Alegre, Brazil, is 78%.

Rainfall

In October, the rain falls for 15 days. Throughout October, 90mm (3.54") of precipitation is accumulated. In Porto Alegre, during the entire year, the rain falls for 148.3 days and collects up to 805mm (31.69") of precipitation.

Sea temperature

In Porto Alegre, in October, the average water temperature is 18.9°C (66°F).
Note: In water of 18.9°C (66°F), the majority of people do not enjoy swimming. Breathing becomes increasingly hard to manage as the temperature drops from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in October is 12h and 50min.
On the first day of the month, sunrise is at 06:02 and sunset at 18:26. On the last day of October, in Porto Alegre, Brazil, sunrise is at 05:30 and sunset at 18:46 -03.

Sunshine

In Porto Alegre, the average sunshine in October is 7.6h.

UV index

The average daily maximum UV index in October is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 5 during October translates into the following directions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Stay sun-safe with clothing that is both closely woven and worn loosely.

Frequently asked questions

What is the temperature in October in Porto Alegre?

In Porto Alegre, 24.5°C (76.1°F) is the average high-temperature and 14.7°C (58.5°F) is the average low-temperature during October. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in March is calculated to be 31°C (87.8°F).

What is the average humidity in October in Porto Alegre?

In October, the average relative humidity is 78%.

How much does it rain in Porto Alegre in October?

In October, in Porto Alegre, the rain falls for 15 days. Throughout October, 90mm (3.54") of precipitation is accumulated.

What is the sea temperature in October in Porto Alegre?

In October, the average sea temperature in Porto Alegre, Brazil, is 18.9°C (66°F). Swimming in 18.9°C (66°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

How many hours of daylight does Porto Alegre have in October?

In Porto Alegre, Brazil, the average day length in October is 12h and 50min.

When are sunrise and sunset in October in Porto Alegre?

On the first day of October in Porto Alegre, sunrise is at 06:02 and sunset at 18:26. On the last day of the month, sunrise is at 05:30 and sunset at 18:46 -03.

How long on average sun shines in October in Porto Alegre?

In Porto Alegre, Brazil, the average sunshine duration in October is 7.6h.

What is the UV index reading in October in Porto Alegre?

In October, the average daily maximum UV index in Porto Alegre, Brazil, is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from exposure to Sun's UV rays.

Average temperature in October
Porto Alegre, Brazil

Average temperature in October - Porto Alegre, Brazil
  • Average high temperature in October: 24.5°C

The warmest month (with the highest average high temperature) is February (30.5°C).
The month with the lowest average high temperature is July (18.8°C).

  • Average low temperature in October: 14.7°C

The months with the highest average low temperature are January and February (20°C).
The coldest month (with the lowest average low temperature) is July (10.6°C).

Average pressure in October
Porto Alegre, Brazil

Average pressure in October - Porto Alegre, Brazil
  • Average pressure in October: 1014.9mbar

The month with the highest atmospheric pressure is July (1019.8mbar).
The month with the lowest atmospheric pressure is December (1011.4mbar).

Average wind speed in October
Porto Alegre, Brazil

Average wind speed in October - Porto Alegre, Brazil
  • Average wind speed in October: 12.1km/h

The windiest month (with the highest average wind speed) is October (12.1km/h).
The calmest month (with the lowest average wind speed) is May (10km/h).

Average humidity in October
Porto Alegre, Brazil

Average humidity in October - Porto Alegre, Brazil
  • Average humidity in October: 78%

The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is December (71%).

Average rainfall in October
Porto Alegre, Brazil

Average rainfall in October - Porto Alegre, Brazil
  • Average rainfall in October: 90mm

The wettest month (with the highest rainfall) is July (103mm).
The driest month (with the least rainfall) is April (36mm).

Average rainfall days in October
Porto Alegre, Brazil

Average rainfall days in October - Porto Alegre, Brazil
  • Average rainfall days in October: 15 days

The month with the highest number of rainy days is October (15 days).
The month with the least rainy days is April (9.8 days).

Average sea temperature in October
Porto Alegre, Brazil

Average sea temperature in October - Porto Alegre, Brazil
  • Average sea temperature in October: 18.9°C

The best month for swimming (with the highest average sea temperature) is January (24.7°C).
The coldest month (with the lowest average sea temperature) is August (15.8°C).

Average daylight in October /
Average sunshine in October
Porto Alegre, Brazil

Average daylight in October / Average sunshine in October - Porto Alegre, Brazil
  • Average daylight in October: 12h and 5min

The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 12min).

  • Average sunshine in October: 7h and 4min

The month with the most sunshine is December (Average sunshine: 8h and 18min).
The month with the least sunshine is September (Average sunshine: 7h and 0min).

Average sunshine days in October
Porto Alegre, Brazil

Average sunshine days in October - Porto Alegre, Brazil
  • Average sunshine days in October: 14.5 days

The month with the most sunshine days is May (19.9 days).
The month with the least sunshine days is September (14.4 days).

Average UV index in October
Porto Alegre, Brazil

Average UV index in October - Porto Alegre, Brazil
  • Average UV index in October: 5

The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).

Average cloud cover in October
Porto Alegre, Brazil

Average cloud cover in October - Porto Alegre, Brazil
  • Average cloud cover in October: 40

The month with the most cloud cover is September (Cloud cover 41).
The month with the least cloud cover is November (Cloud cover 32).

Average visibility in October
Porto Alegre, Brazil

Average visibility in October - Porto Alegre, Brazil
  • Average visibility in October: 9km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).

Porto Alegre, Brazil

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location