Swimming in Sri Lanka in may 2025 Sea temperature by city in may
Do you want to go to the beach in Sri Lanka in may 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in may in Sri Lanka by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Sri Lanka in may 2025
Here, find the average sea temperature in Sri Lanka in may in several coastal cities.
West Coast in may
85°F
min: 83°F / max: 87°F
85°F
min: 83°F / max: 87°F
85°F
min: 84°F / max: 87°F
Dehiwala-Mount Lavinia
85°F
min: 83°F / max: 87°F
Panadura
85°F
min: 83°F / max: 87°F
Southern Coast in may
85°F
min: 82°F / max: 87°F
85°F
min: 83°F / max: 87°F
85°F
min: 83°F / max: 87°F
Ambalangoda
85°F
min: 83°F / max: 87°F
85°F
min: 82°F / max: 87°F
Hambantota
85°F
min: 83°F / max: 87°F
North in may
87°F
min: 84°F / max: 89°F
87°F
min: 85°F / max: 89°F
Mannar Island
86°F
min: 84°F / max: 88°F
Kayts
86°F
min: 84°F / max: 89°F
Point Pedro
86°F
min: 84°F / max: 89°F
Poonakari
86°F
min: 84°F / max: 89°F
East Coast in may
87°F
min: 85°F / max: 88°F
86°F
min: 84°F / max: 88°F
86°F
min: 85°F / max: 88°F
Akkaraipattu
86°F
min: 85°F / max: 88°F
Arisimale Beach
87°F
min: 85°F / max: 89°F
Arugam Bay
86°F
min: 85°F / max: 88°F
North West in may
86°F
min: 84°F / max: 87°F
86°F
min: 84°F / max: 87°F
Kalpitiya
85°F
min: 84°F / max: 87°F
Where should you go swimming in Sri Lanka in the month of may?
Swimming in Sri Lanka in may is ideal
In may in Sri Lanka swimming conditions are generally the same everywhere.
In may in Colombo, Galle, Jaffna, Trincomalee, Batticaloa, Chilaw, Kalutara, Mullaitivu, Negombo, Yala National Park, Pottuvil, Puttalam, Tangalle, Akkaraipattu, Ambalangoda, Arisimale Beach, Arugam Bay, Bentota, Hambantota, Hikkaduwa, Mannar Island, Kalkudah, Kallady Beach, Kallara beach (Thiriyai), Kalmunai, Kayts, Matara, Mirissa, Navalady, Okanda, Point Pedro, Poonakari, Thalayadi, Unakuruwa Beach, Uppuveli, Vakarai, Dehiwala-Mount Lavinia, Kalpitiya, Panadura and Weligama, swimming conditions are perfect! With water reaching a maximum of 87°F and an average of 85°F, going in the water (and staying there!) feels great.
Where to go swimming in Sri Lanka in may: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in may
Colombo
| May | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 85°F | ||
| Precipitation | 26.4in | ||
| Number of days of precipitation | 23 jour(s) (73%) | ||
| Cloud cover | 53% | ||
| Our opinion | ideal swimming |
More information on swimming in Colombo in may
Galle
| May | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 82°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 86°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 25.9in | ||
| Number of days of precipitation | 23 jour(s) (74%) | ||
| Cloud cover | 50% | ||
| Our opinion | ideal swimming |
More information on swimming in Galle in may
Jaffna
| May | |||
| Average sea temperature | 87°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 89°F | ||
| Average outside temperature | 86°F | ||
| Maximum outside temperature | 88°F | ||
| Minimum outside temperature | 86°F | ||
| Precipitation | 3.2in | ||
| Number of days of precipitation | 4 jour(s) (12%) | ||
| Cloud cover | 24% | ||
| Our opinion | ideal swimming |
More information on swimming in Jaffna in may
Trincomalee
| May | |||
| Average sea temperature | 87°F | ||
| Minimum sea temperature | 85°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 90°F | ||
| Maximum outside temperature | 94°F | ||
| Minimum outside temperature | 85°F | ||
| Precipitation | 6.3in | ||
| Number of days of precipitation | 9 jour(s) (30%) | ||
| Cloud cover | 27% | ||
| Our opinion | ideal swimming |
More information on swimming in Trincomalee in may
Batticaloa
| May | |||
| Average sea temperature | 86°F | ||
| Minimum sea temperature | 84°F | ||
| Maximum sea temperature | 88°F | ||
| Average outside temperature | 88°F | ||
| Maximum outside temperature | 92°F | ||
| Minimum outside temperature | 85°F | ||
| Precipitation | 7.7in | ||
| Number of days of precipitation | 12 jour(s) (39%) | ||
| Cloud cover | 24% | ||
| Our opinion | ideal swimming |
More information on swimming in Batticaloa in may
List of coastal cities in Sri Lanka
| Colombo in may | ideal swimming |
| Galle in may | ideal swimming |
| Jaffna in may | ideal swimming |
| Trincomalee in may | ideal swimming |
| Batticaloa in may | ideal swimming |
| Chilaw in may | ideal swimming |
| Kalutara in may | ideal swimming |
| Mullaitivu in may | ideal swimming |
| Negombo in may | ideal swimming |
| Yala National Park in may | ideal swimming |
| Pottuvil in may | ideal swimming |
| Puttalam in may | ideal swimming |
| Tangalle in may | ideal swimming |
| Akkaraipattu in may | ideal swimming |
| Ambalangoda in may | ideal swimming |
| Arisimale Beach in may | ideal swimming |
| Arugam Bay in may | ideal swimming |
| Bentota in may | ideal swimming |
| Hambantota in may | ideal swimming |
| Hikkaduwa in may | ideal swimming |
| Mannar Island in may | ideal swimming |
| Kalkudah in may | ideal swimming |
| Kallady Beach in may | ideal swimming |
| Kallara beach (Thiriyai) in may | ideal swimming |
| Kalmunai in may | ideal swimming |
| Kayts in may | ideal swimming |
| Matara in may | ideal swimming |
| Mirissa in may | ideal swimming |
| Navalady in may | ideal swimming |
| Okanda in may | ideal swimming |
| Point Pedro in may | ideal swimming |
| Poonakari in may | ideal swimming |
| Thalayadi in may | ideal swimming |
| Unakuruwa Beach in may | ideal swimming |
| Uppuveli in may | ideal swimming |
| Vakarai in may | ideal swimming |
| Dehiwala-Mount Lavinia in may | ideal swimming |
| Kalpitiya in may | ideal swimming |
| Panadura in may | ideal swimming |
| Weligama in may | ideal swimming |