Swimming in the South Pacific Islands in august 2025 Sea temperature by city in august
Do you want to go to the beach in the South Pacific Islands in august 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 august in the South Pacific Islands by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in the South Pacific Islands in august 2025
Here, find the average sea temperature in the South Pacific Islands in august in several coastal cities.
Samoan Islands in august
83°F
min: 81°F / max: 85°F
83°F
min: 81°F / max: 84°F
83°F
min: 81°F / max: 84°F
82°F
min: 81°F / max: 84°F
Apolima island
83°F
min: 81°F / max: 84°F
Lalomanu Beach
83°F
min: 81°F / max: 84°F
Cook islands in august
76°F
min: 74°F / max: 79°F
77°F
min: 74°F / max: 79°F
Tonga in august
76°F
min: 73°F / max: 78°F
77°F
min: 73°F / max: 80°F
75°F
min: 73°F / max: 78°F
78°F
min: 75°F / max: 81°F
Tuvalu in august
85°F
min: 83°F / max: 87°F
85°F
min: 83°F / max: 87°F
85°F
min: 83°F / max: 87°F
Solomon islands in august
84°F
min: 82°F / max: 86°F
84°F
min: 82°F / max: 86°F
85°F
min: 83°F / max: 87°F
83°F
min: 81°F / max: 85°F
Kiribati in august
85°F
min: 84°F / max: 87°F
82°F
min: 80°F / max: 86°F
Vanuatu in august
Lenakel
76°F
min: 74°F / max: 78°F
Luganville
81°F
min: 79°F / max: 83°F
Norsup
81°F
min: 78°F / max: 83°F
Sola
81°F
min: 80°F / max: 84°F
Where should you go swimming in the South Pacific Islands in the month of august?
Swimming in the South Pacific Islands in august is ideal (in the best case scenario)
In august in the South Pacific Islands swimming conditions vary by city. Details below:
In august in Apia, Vaiaku (Fongafale), Honiara, Kiribati, Samoan Islands, Savai'i island, Tarawa, Upolu island, Christmas Island, Funafuti, Guadalcanal Island, Malaita Island, New Georgia Islands, Nukufetau, Pago Pago (American Samoa), Apolima island, Lalomanu Beach, Lotofaga, Luganville, Manase, Manono island, Norsup, O Le Pupu-Pue National Park, Salelologa and Sola, swimming conditions are perfect! With water reaching a maximum of 85°F and an average of 83°F, going in the water (and staying there!) feels great.
As for Avarua, Nukuʻalofa, Rarotonga island, Haʻapai islands (Lifuka and Foa), Tongatapu Island, Vavaʻu island and Lenakel, swimming is pleasant in august. The sea water is 76°F on average (min: 74°F/max: 79°F) so you can easily spend time in the water.
Where to go swimming in the South Pacific Islands in august: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in august
Apia
| August | |||
| Average sea temperature | 83°F | ||
| Minimum sea temperature | 81°F | ||
| Maximum sea temperature | 85°F | ||
| Average outside temperature | 81°F | ||
| Maximum outside temperature | 83°F | ||
| Minimum outside temperature | 81°F | ||
| Precipitation | 7.1in | ||
| Number of days of precipitation | 10 jour(s) (31%) | ||
| Cloud cover | 48% | ||
| Our opinion | ideal swimming |
More information on swimming in Apia in august
Avarua
| August | |||
| Average sea temperature | 76°F | ||
| Minimum sea temperature | 74°F | ||
| Maximum sea temperature | 79°F | ||
| Average outside temperature | 74°F | ||
| Maximum outside temperature | 76°F | ||
| Minimum outside temperature | 74°F | ||
| Precipitation | 4.4in | ||
| Number of days of precipitation | 5 jour(s) (16%) | ||
| Cloud cover | 48% | ||
| Our opinion | pleasant swimming |
More information on swimming in Avarua in august
Nukuʻalofa
| August | |||
| Average sea temperature | 76°F | ||
| Minimum sea temperature | 73°F | ||
| Maximum sea temperature | 78°F | ||
| Average outside temperature | 74°F | ||
| Maximum outside temperature | 74°F | ||
| Minimum outside temperature | 72°F | ||
| Precipitation | 4.8in | ||
| Number of days of precipitation | 5 jour(s) (15%) | ||
| Cloud cover | 51% | ||
| Our opinion | pleasant swimming |
More information on swimming in Nukuʻalofa in august
Vaiaku (Fongafale)
| August | |||
| Average sea temperature | 85°F | ||
| Minimum sea temperature | 83°F | ||
| Maximum sea temperature | 87°F | ||
| Average outside temperature | 85°F | ||
| Maximum outside temperature | 85°F | ||
| Minimum outside temperature | 83°F | ||
| Precipitation | 14.4in | ||
| Number of days of precipitation | 20 jour(s) (63%) | ||
| Cloud cover | 45% | ||
| Our opinion | ideal swimming |
More information on swimming in Vaiaku (Fongafale) in august
Honiara
| August | |||
| Average sea temperature | 84°F | ||
| Minimum sea temperature | 82°F | ||
| Maximum sea temperature | 86°F | ||
| Average outside temperature | 83°F | ||
| Maximum outside temperature | 86°F | ||
| Minimum outside temperature | 79°F | ||
| Precipitation | 11.2in | ||
| Number of days of precipitation | 17 jour(s) (55%) | ||
| Cloud cover | 44% | ||
| Our opinion | ideal swimming |
More information on swimming in Honiara in august
List of coastal cities in the South Pacific Islands
| Apia in august | ideal swimming |
| Avarua in august | pleasant swimming |
| Nukuʻalofa in august | pleasant swimming |
| Vaiaku (Fongafale) in august | ideal swimming |
| Honiara in august | ideal swimming |
| Kiribati in august | ideal swimming |
| Samoan Islands in august | ideal swimming |
| Rarotonga island in august | pleasant swimming |
| Savai'i island in august | ideal swimming |
| Tarawa in august | ideal swimming |
| Upolu island in august | ideal swimming |
| Christmas Island in august | ideal swimming |
| Funafuti in august | ideal swimming |
| Guadalcanal Island in august | ideal swimming |
| Haʻapai islands (Lifuka and Foa) in august | pleasant swimming |
| Malaita Island in august | ideal swimming |
| New Georgia Islands in august | ideal swimming |
| Nukufetau in august | ideal swimming |
| Pago Pago (American Samoa) in august | ideal swimming |
| Tongatapu Island in august | pleasant swimming |
| Vavaʻu island in august | pleasant swimming |
| Apolima island in august | ideal swimming |
| Lalomanu Beach in august | ideal swimming |
| Lenakel in august | pleasant swimming |
| Lotofaga in august | ideal swimming |
| Luganville in august | ideal swimming |
| Manase in august | ideal swimming |
| Manono island in august | ideal swimming |
| Norsup in august | ideal swimming |
| O Le Pupu-Pue National Park in august | ideal swimming |
| Salelologa in august | ideal swimming |
| Sola in august | ideal swimming |