Unawatuna, Sri Lanka: Annual Weather Averages

May is the hottest month in Unawatuna with an average temperature of 28.25°C (83°F) and the coldest is January at 26.6°C (80°F) with the most daily sunshine hours at 9 in March. The wettest month is November with an average of 207.4mm of rain. The best month to swim in the sea is in April when the average sea temperature is 29.77123333°C (86°F).

Average Temperature: Unawatuna

Loading weather data. Please wait…

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 27 27 28 28 28 28 28 28 27 27 27 27
°F 80 81 82 83 83 82 82 82 81 81 80 80

Average High/Low Temperature: Unawatuna

Loading weather data. Please wait…

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
High °C 31 31 31 32 31 30 30 30 30 30 30 30
Low °C 23 23 24 25 26 26 25 25 25 24 24 23
High °F 87 88 89 89 87 86 85 85 86 85 86 86
Low °F 73 73 75 77 78 78 78 78 77 76 74 74

Average Rainfall: Unawatuna

Loading weather data. Please wait…

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 19 24 26 63 128 96 70 72 119 206 207 65
Days 26 21 20 12 10 6 11 8 13 10 13 13

Average Daily Sunshine Hours: Unawatuna

Loading weather data. Please wait…

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hours 8 9 9 8 6 7 7 7 8 7 7 7

Average Sea Temperature: Unawatuna

Loading weather data. Please wait…

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 28 28 29 30 29 29 28 28 27 27 29 28
°F 82 83 84 86 85 83 83 82 81 81 84 83

Your Holiday Weather Settings

Show temperature in:
Show distance in: