Oceana's climate is relatively simple and consistent. Seasonal temperatures, precipitation, wind direction and wind speed are fairly close for any given latitude across the entire east to west range of the islands. Wind direction and wind speed follows latitude bands. Ocean currents in the northern hemisphere generally follow at 90 degrees to the winds within the islands. Islands will make local changes to the general current flow. The eastern edge of the archipeligo has an large ocean current that runs from the southern section of the islands north to the artic circle. This is similar in many ways to the Gulf Stream. As such, temperatures and precipitation of Oceana match that of the US East Coast. The major effect on climate is latitude. The presence of the ocean around all the small pieces of land has a very moderating influence. The islands though produce local updrafts which provides most islands with sufficient rain during the year.
There is no continental type climates because all the land is surrounded by water, and none of it is sufficinetly far to create a continental type climate. There is no monsoon on Oceana. Monsoons require a large continental sized land mass plus a large surrounding ocean to form. While Oceana has the oceans, it does not have the single large land mass to create such a circulation pattern.
On Earth, one degree of latitude (north to south) is 60 miles, while one minute of latitude is one mile. Oceana is essentially the same size.
From the North Pole, 90 degrees, to 75 degrees are the Polar Calms. Winds are light and variable.
From roughly 75 degrees to 60 degrees latitude are the Northeasterly Trades. Winds blow steadily from the northeast to the southwest. The junction of the Northeasterly Trades with the Southwesterly Trades at the 60 degree line is given over to gusts and turbulance.
From 60 degrees latitude to 45 degrees latitude are the Southwesterly Trades. Winds blow steadily from the west, southwest to the northeast. The junction of the Northeasterly Trades with the Southwesterly Trades at the 60 degree line is given over to gusts and turbulance.
From 45 degrees to 30 degrees are the High Pressure Doldrums, or Horse Latitudes. Winds are light and of variable direction. There tend to be down drafts that are dangerous to heavily laden vessels and flying craft.
From 30 degrees to 15 degrees are Northeast Trades. Winds are steady and constant from the northeast to southwest.
From 15 degrees to the Equator are the Low Pressure Doldrums. Winds are light and intermittant. This zone also extends to 15 degrees south. Hot, sultry days are common. The sky is usually overcast, and showers and thunder showers are relatively frequent; in these atmospherically unstable areas brief periods of stong wind can occur. Updrafts are the normal flying condition.