We think yes, it is safe, but you might want to check if there are travel warnings out for certain areas in Thailand. Follow the link to government sites of different countries where you can check for yourself.
We monitor the political situation and if problems arise, we will warn our volunteers.
Apart from political developments, Thailand is no more dangerous than your own country if you use common sense.
In the light of yesterdays events, some areas in Bangkok are better avoided. We advice everyone arriving in Bangkok at the airport not to go into the city but to take a plane to either Udon Thani or Vienatiane/Laos or take the direct bus from the airport to Nongkhai.
Useful phone numbers
Ministry of Tourism Aid Center: +66 (0) 2356-0720 / +66 (0) 2356-0729 / 1414
Ministry of Foreign Affairs: +66 (0) 2575-1023 / +66 (0) 2981-7225 / +66-88-022-1540 / +66-88-022-1541
ATTA (Association of Thai Travel Agents): +66 (0) 2134-4263
Tourism Authority of Thailand: +66 (0) 2652-8313-4
Bug1133 (ask anything): 1133
Ministry of Tourism and Sports: 1414
TAT Call Centre: 1672
Tourist Police: 1155
General Insurance Association: 1356
Suvarnabhumi International Airport: +66 (0) 2132-1888
Suvarnabhumi International Airport flight inquiries: +66 (0) 2132-0000 / +66 (0) 2132-9328-9
Chiang Mai International Airport: +66 (0) 5392-2100 / +66 (0) 5392-2444