Currently, the weather in Sri Lanka is exactly what you expect during the monsoon season (July till September):
The sky is blue in the east and the west of the island, particularly in Anuradhapura, Jaffna, Trincomalee, and Arugam Bay,
whereas in Colombo and Galle and Ratnapura and other places in the southwest of the island heavy showers occur at times.
Spells of showers also occur in Kandy and Nuwara Eliya and other regions in the central highlands.
Strong gusty winds up to 50-60 kmph are likely over the island.