Average Weather during May in Katunayaka (Gampaha District), Sri Lanka

The average minimum temperature (usually the minimum temperature is noted during the night) in Katunayaka in May is 25.0°C (77°F). May falls in the rainy season with an average precipitation of 382mm (15.0in). May is the most wet month of the year. Be prepared May is also the hottest month. The average maximum temperature lies around 31.0°C (87.8°F). During the night it can be very warm and sticky. With a water temperature of around 28.0°C (82.4°F), this is a great month to swim. If you enjoy looking at a blue sky and like sunbathing than this month is a great period to visit Katunayaka. It has 202 hours of sun.

So what to wear in May? Visitors traveling to Katunayaka should plan on bringing a totally waterproof rain jacket since it will often be raining. Also bring your shorts and or a skirt because it can be very warm or even hot.

No idea where to travel to this year? We now have a tool which suggests which destination suits your ideal climate conditions. Find out where to go here.

For other monthly weather averages and what to do in May look at the numbers below.

Monthly Averages

Show in Fahrenheit

Min Temperature 25 °C
Max Temperature 31 °C
Water Temperature 28 °C
Chance of Rain 77%
Precipitation 382mm
Rainy Days 23
Sunshine Hours 202

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in .

Swimming
8/10
Cycling
7/10
Walking
7/10
Camping
6/10
Outdoor sports
7/10

More Climate Information For Katunayaka

Weather and Climate offers all the information you need to know about the climate in Katunayaka.

We collected past weather data from many thousand weather stations around the world. So find on this website the historical weather averages in other cities in Sri Lanka and climate and forecast data for all other countries in the world.