Negombo monthly weather averages

Average daytime temperature

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

Negombo average temperature chart (Celsius) Negombo average temperature chart (Fahrenheit)
Average monthly temperatures in Negombo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 30.9 31.9 32.8 32.4 31.5 30.7 30.4 30.5 30.8 30.5 30.5 30.2
°F 87.6 89.4 91 90.3 88.7 87.2 86.8 86.9 87.4 86.9 86.8 86.4

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.

Negombo monthly rainfall chart (mm) Negombo monthly rainfall chart (inches)
Average monthly rainfall in Negombo (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 48 71 128 244 298 154 103 87 187 351 295 153
inches 1.9 2.8 5 9.6 11.7 6.1 4.1 3.4 7.4 13.8 11.6 6
Rainy days 4 4 8 13 12 13 10 9 12 15 15 10

Average daily sunshine

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

Negombo average daily sunshine chart
Average daily sunshine Negombo
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.3 8.9 9.2 8.2 6.9 6.6 6.6 6.8 6.6 6.7 7 7.2

Day / night temperatures

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

Negombo average minimum / maximum temperatures (Celsius) Negombo average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Negombo (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 21.7 22.1 23.4 24.4 25.4 25.4 25.1 25 24.7 23.8 23 22.4
Max °C 31.1 32.2 33 32.6 31.7 30.8 30.6 30.7 31 30.7 30.7 30.4
Min °F 71.1 71.7 74.1 75.9 77.6 77.7 77.1 76.9 76.4 74.8 73.3 72.3
Max °F 79.5 80.8 82.8 83.3 83.3 82.6 82 82 82 81 80.2 79.5

Sea temperature

The graph below shows the average sea temperature.

Negombo average sea temperature chart (Celsius) Negombo average sea temperature chart (Fahrenheit)
Average sea temperature around Negombo in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.4 27.8 28.9 29.8 29.4 28 27.1 27 27.4 28.1 28.4 27.8
°F 81.3 82.1 83.9 85.6 84.8 82.5 80.9 80.6 81.3 82.5 83.1 82.1

Wind speed

The graph below shows the average wind speed.

Negombo average winspeed by month (km/h) Negombo average winspeed by month (mph)
Average wind speed in Negombo (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 8 7 7 10 13 12 12 11 8 7 9
mph 6 5 5 4 7 8 7 7 7 5 5 5

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.

Negombo relative humidity averages
Average relative humidity in Negombo
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 71% 74% 78% 80% 79% 78% 77% 78% 80% 81% 79%

Other monthly averages

UV index Best time to go?

Negombo weather stats

Negombo weather statistics
Hottest month: April 32.4°C 90.3°F
Driest month: January 48mm 1.9ins
Sunniest month: March 9.2hrs
Coldest month: January 30.9°C 87.6°F
Wettest month: October 351mm 13.8ins
Warmest sea: April 29.8°C 85.6°F
Map showing location of Negombo (7.2083, 79.8358)

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