But the weather was typical for this time of the year, Hayes said, even though winter hit hard on June 1 with "the big system that came through bringing the cold conditions".
"It has been pretty winter-like and this week will feel like it."
But it is not all bad news, although the latter end of the week brings rain, temperatures will be warming up.
"After Wednesday, we have another system coming on bringing some cloud and possibly some rain along the coast.
"Friday there is a front passing with a period of rain throughout the day but it will pass by Friday night and then things should improve although it could still be cloudy on Saturday," Hayes said.
"With that system and those northerlies developing, it will actually warm up quite a bit, so highs in the day are around mid teens and lows in the night would be around eight degrees."
Today's weather
Tauranga:
Fine, then chance shower from afternoon. Southwesterlies. High15C. Low 5C.
Rotorua:
Fine, then chance shower from afternoon. Southwesterlies. High 12C. Low 2C.
Whakatāne:
Fine, then chance shower from afternoon. Southwesterlies. High 15C. Low 1C.