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Climate · Asia
Sri Lanka · Tropical maritime (south coast) · Updated May 2026
Best months
Nov · Dec · Jan · Feb · Mar · Apr
Best for: Beginner-surf nomads who plan around Sri Lanka's two-monsoon clock.
Cells coloured by typical daytime average temperature. ★ = best months for nomads.
Jan
27°C
78%
2mm
Feb
27°C
75%
2mm
Mar
28°C
76%
3mm
Apr
28°C
80%
5mm
May
28°C
83%
8mm
Jun
27°C
83%
6mm
Jul
27°C
83%
4mm
Aug
27°C
82%
4mm
Sep
27°C
82%
6mm
Oct
27°C
82%
9mm
Nov
27°C
80%
6mm
Dec
27°C
78%
3mm
Summer peak
28°C
March · 76% humidity
Winter low
27°C
January · 78% humidity
Climate type
Tropical maritime (south coast)
Humid summers, Humid winters
Tropical, two monsoons. The south-west monsoon (May–Sep) and inter-monsoon (Oct–Nov) deliver most of the rain — bookable dry days are Nov–Apr, which is also peak surf season.
Pathway
Extendable tourist
Program
—
Typical max stay
9 months
ETA covers up to 270 days for many passports — extendable in-country in 60-day blocks; formal DNV is in development.
Editorial summary, not legal advice. Verify with the relevant consulate before applying — visa programs change with little notice.
Cost of living in Mirissa: ~$970/mo
Mid-tier monthly across rent, food, transport, utilities, and coworking.
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Editorial estimates aggregated from public climatological summaries — typical monthly averages, not forecasts. Treat as order-of-magnitude. Microclimate, altitude, and recent extreme weather can swing these values significantly.