If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Bijagua: The hottest months are usually April and May, with an average temperature of 26°C, while the coldest months are February and January, with an average of 25°C. The rainiest months in Bijagua are October, September, June and August, with each month seeing an average of 357 mm of rainfall.