The average mean temperature is about 17 degrees Celsius. Sea fog during July and August, and even into September, develops frequently. Autumn marks the beginning of the wet season for the park. With increasing cloud blocking the sun, temperatures drop considerably. Strong and persistent southeasterly winds bring frequent and severe storms, typically followed by the passage of a coldfront.
Winter intensifies the wet autumn pattern.
Average temperatures for the season range from a mean of 5 degrees Celsius to near freezing. Although there can be occasional wet snowfalls, snow is infrequent along this coast. Several winters may pass without receiving any snow at all. Frost is experienced each winter, but it is seldom severe. Normally, temperatures remain above freezing unless cold Arctic air moves in from the interior mountains.