Sines monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Sines

Sines average temperature chart (Celsius) Sines average temperature chart (Fahrenheit)
Average monthly temperatures in Sines (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 14.6 15.4 17.2 18.6 21.4 24.6 27.5 27.8 26.4 22.1 17.9 15.2
°F 58.2 59.7 62.9 65.4 70.5 76.3 81.5 82 79.5 71.9 64.2 59.3

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Sines monthly rainfall chart (mm) Sines monthly rainfall chart (inches)
Average monthly rainfall in Sines (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 97 88 59 54 34 19 3 3 20 66 93 97
inches 3.8 3.5 2.3 2.1 1.3 0.8 0.1 0.1 0.8 2.6 3.6 3.8
Rainy days 12 12 10 10 6 4 1 1 4 9 11 12

Average annual rainfall in Sines: 663.1666667mm (261.1 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Sines

Sines average daily sunshine chart
Average daily sunshine Sines
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 5.4 5.9 7.3 8.3 10.1 10.9 12.3 11.8 9.3 7.4 6 5.3

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Sines average minimum / maximum temperatures (Celsius) Sines average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Sines (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 8.1 8.9 9.5 10.7 12.5 15.1 16.9 17.2 16.8 14.5 11.2 9.1
Max °C 14.7 15.6 17.3 18.8 21.6 24.9 27.7 28 26.6 22.3 18.1 15.3
Min °F 46.6 47.9 49.1 51.2 54.6 59.2 62.4 62.9 62.3 58 52.1 48.4
Max °F 52.6 54 56.2 58.5 62.7 68 72.1 72.7 71.1 65.1 58.3 54

Sea temperature

The graph below shows the average sea temperature.

Sines average sea temperature chart (Celsius) Sines average sea temperature chart (Fahrenheit)
Average sea temperature around Sines in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 16.2 15.6 15.7 16.4 17.5 19.3 20.5 21 21 20.4 18.9 17.3
°F 61.2 60.1 60.3 61.5 63.6 66.8 68.8 69.9 69.9 68.6 66 63.2

Wind speed

The graph below shows the average wind speed.

Sines average winspeed by month (km/h) Sines average winspeed by month (mph)
Average wind speed in Sines (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 15 15 15 15 14 14 14 13 13 13 14
mph 9 9 9 9 9 9 9 9 8 8 8 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Sines relative humidity averages
Average relative humidity in Sines
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
80% 78% 72% 70% 66% 64% 60% 59% 64% 71% 76% 80%

Other monthly averages

UV index Best time to go?

Sines weather stats

Sines weather statistics
Hottest month: August 27.8°C 82°F
Driest month: July 3mm 0.1ins
Sunniest month: August 11.8hrs
Coldest month: January 14.6°C 58.3°F
Wettest month: January 97mm 3.8ins
Warmest sea: September 21°C 69.8°F
Map showing location of Sines (37.95622, -8.86979) Sines map pin © Google

Locations nearby

Top Portugal locations