Jaffna monthly weather averages

Contents

Average daytime temperature

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

Jaffna average temperature chart (Celsius) Jaffna average temperature chart (Fahrenheit)
Average monthly temperatures in Jaffna (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27.5 29 31.2 33 33.5 33.3 33 32.5 32.3 30.8 29 27.6
°F 81.5 84.2 88.2 91.4 92.3 91.9 91.3 90.5 90.2 87.5 84.3 81.8

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.

Jaffna monthly rainfall chart (mm) Jaffna monthly rainfall chart (inches)
Average monthly rainfall in Jaffna (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 52 31 24 43 50 17 17 38 54 248 327 285
inches 2.1 1.2 1 1.7 2 0.7 0.7 1.5 2.1 9.8 12.9 11.2
Rainy days 4 2 2 3 3 1 3 3 4 10 12 10

Average annual rainfall in Jaffna: 1276.333mm (502.5 inches)

Average daily sunshine

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

Jaffna average daily sunshine chart
Average daily sunshine Jaffna
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 8.1 8.8 9.3 8.8 7.8 6.5 6.3 6.9 6.8 6.6 6.1 6.6

Day / night temperatures

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

Jaffna average minimum / maximum temperatures (Celsius) Jaffna average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Jaffna (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 23 23.7 25.3 26.9 26.3 25.8 25.5 25.1 25.1 24.6 24.1 23.5
Max °C 27.6 29.2 31.4 33.2 33.7 33.5 33.2 32.7 32.5 31 29.2 27.8
Min °F 73.4 74.6 77.5 80.3 79.3 78.4 77.8 77.2 77.2 76.3 75.3 74.2
Max °F 77.5 79.5 82.9 86 86 85.3 84.7 84 83.8 82 79.9 78.1

Sea temperature

The graph below shows the average sea temperature.

Jaffna average sea temperature chart (Celsius) Jaffna average sea temperature chart (Fahrenheit)
Average sea temperature around Jaffna in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27 27.5 28.7 30 30 29.3 28.8 28.7 28.8 29 28.6 27.5
°F 80.5 81.5 83.6 85.9 86.1 84.7 83.9 83.6 83.8 84.3 83.4 81.5

Wind speed

The graph below shows the average wind speed.

Jaffna average winspeed by month (km/h) Jaffna average winspeed by month (mph)
Average wind speed in Jaffna (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 17 13 10 9 13 16 14 13 12 9 12 17
mph 10 8 7 6 8 10 9 8 7 6 8 11

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.

Jaffna relative humidity averages
Average relative humidity in Jaffna
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
77% 74% 73% 73% 71% 69% 69% 71% 73% 77% 80% 81%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Jaffna weather stats

Jaffna weather statistics
Hottest month: April 33°C 91.4°F
Driest month: June 17mm 0.7ins
Sunniest month: March 9.3hrs
Coldest month: January 27.5°C 81.5°F
Wettest month: November 327mm 12.9ins
Warmest sea: May 30°C 86°F
Map showing location of Jaffna (9.66845, 80.00742) Jaffna map pin © Google

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