When you're dreaming of a escape to Seaside Gilbert District, year-round temperatures and rainfall may be important factors to consider. The hottest months are usually August and July, with an average temperature of 15°C, while the coldest months are February and December, with an average of 7°C. The rainiest months in Seaside Gilbert District are November, December, January and March, with each month seeing an average of 240 mm of rainfall.