Is Sri Lanka safe for solo female travellers — honest advice on what to expect?

I'm a Sri Lankan woman who has also travelled solo and I'll give you the honest picture.

What to realistically expect:
Sri Lanka is broadly safe for solo female travellers by Asian standards. Violent crime against tourists is very rare. What you will encounter is persistent low-level attention — staring, unsolicited conversation from tuk-tuk drivers, "hello madam" from shopkeepers. In tourist areas this is commercial more than predatory, but it can be tiring. In rural areas and some cities (Colombo off the tourist belt, Kurunegala, parts of Jaffna) the staring can be more intense simply because foreign women alone are unusual.

Specific situations to be aware of:
- Tuk-tuks at night: use PickMe or Uber exclusively after dark. Do not negotiate with street tuk-tuks late at night alone.
- Beaches after dark: avoid isolated beaches after sunset
- Train sleeper carriages: if using overnight trains, book in advance and try to be in a carriage with other female travellers or families. The open seats in second class during the day are completely fine.
- Temple visits: being appropriately dressed (knees and shoulders covered) significantly reduces unwanted attention and is respectful regardless

What to wear:
Loose, modest clothing works best for day-to-day travel outside tourist beach areas. In Colombo city, Galle Fort, and beach towns you will see other tourists in normal summer clothing and this is fine. In smaller towns and rural areas, covering up is both respectful and reduces attention.

Overall: I would encourage you to go. Most of what you'll experience is curiosity rather than threat. Trust your instincts — Sri Lankans are genuinely warm and helpful, and the overwhelming majority of interactions will be positive.