While the Instagram stories and travel blogs paint a picture of tropical bliss, the reality of teaching here is far more layered.

Whether you're preparing for your first teaching job or weighing up whether Thailand is the right fit for you, here are 10 things no one tells you about teaching English in Thailand - the good, the frustrating, and the life-changing.

You might not be just teaching English... or teaching at all

When you're hired as an "English teacher," you assume your day will revolve around grammar, conversation, and vocabulary. But many foreign teachers end up teaching other subjects like science, math, social studies and maybe even PE - often without training or materials. Some placements may even focus more on babysitting than actual teaching, especially in kindergartens. In rare cases, some teachers arrive expecting a classroom and end up stuck in an "office" role with little to no teaching at all. The lesson to be learned? Ask detailed questions during the hiring process and clarify what you're actually signing up for.

Your passport might open doors... or close them

This is a sensitive but very real issue: hiring in Thailand is sometimes influenced more by nationality, accent, or appearance than by teaching ability. Native English speakers from the U.S., UK, Canada, Australia, and New Zealand are often prioritized. Meanwhile, qualified teachers from the Philippines, South Africa, or non-native countries may face discrimination, even if they speak flawless English and hold advanced degrees. There’s also a colorism issue in some areas. Schools sometimes show a preference for lighter-skinned candidates. It’s unfair and frustrating, and while things are slowly changing, it's something to be aware of going in.

The heat is relentless

Thailand is hot. Really hot. And humid. Many classrooms don’t have air conditioning, especially in government schools. You’ll often teach in long pants and a collared shirt, sweating through lessons while trying to keep 40 kids focused. It’s not just the temperature, the rainy season adds another twist. Expect flash floods, slippery schoolyards, and the occasional lesson taught with thunder booming in the background. Tip: Stock up on breathable, professional clothing and always carry a second shirt in your bag. Seriously.

Smiles can be misleading so learn the unspoken rules

Thailand is often called “The Land of Smiles,” but those smiles can mean many things. A Thai person may smile when they’re happy, embarrassed, annoyed, or even frustrated with you. It can be easy to misinterpret politeness as agreement, or a quiet nod as understanding, especially in the classroom. Understanding these non-verbal cultural cues takes time, but they’re crucial for navigating both school and daily life. You’ll learn that harmony and saving face often come before direct confrontation, and as a teacher, you’ll need to tread gently.

Foreign teachers earn more and that can be awkward

Foreigners typically earn more than their Thai counterparts, even with less experience. While this is great for your bank account, it can create subtle tension among local staff. You may also receive more leniency or special treatment, which can add to that divide. Be mindful of this dynamic and avoid bragging about your pay or privileges. Respect your Thai co-workers, ask questions, and learn from them whenever possible. It’ll go a long way in building genuine workplace relationships.

Contracts are flexible... sometimes too flexible

Some teaching contracts in Thailand are incredibly vague, with little detail about your actual responsibilities. Others can look solid on paper but shift without warning. Your schedule might change weekly, or you might be asked to attend school events on weekends with zero notice. Additionally, contracts don’t always guarantee job security. Some teachers have been let go mid-term with little explanation. If you're working with an agency, things can get even murkier. Always get everything in writing, and if possible, talk to current or former teachers at the school before signing on.

Classroom behaviour varies wildly

Some schools are incredibly structured and disciplined. Others? Complete chaos. In many Thai classrooms, students are sweet but noisy, and classroom management falls largely on the teacher’s shoulders. You may teach classes with 40–50 students, minimal resources, and no teaching assistant. Corporal punishment still exists in some areas (though it's officially discouraged), and classroom expectations can vary based on region, school funding, and age group. Pro tip: Don't expect students to raise their hands, sit still, or quietly take notes. Teaching here is part education, part performance.

Look for the expat teaching community

Thailand has a vast network of foreign teachers, especially in hotspots like Bangkok, Chiang Mai, and Phuket. But if you're in a rural area, it can feel isolating at first. Some teachers spend their entire contract feeling cut off from the expat community. Find online Facebook groups, attend TEFL networking events, or connect with language schools in nearby towns. These connections are a lifeline when you're dealing with culture shock, visa stress, or just need a friend to grab a beer with on Friday night.

Time off is not the same as flexibility

Thailand has a generous amount of school holidays, especially around October and April. But when school is in session, don’t expect flexibility. Getting a sick day or taking time off for a family emergency can be surprisingly difficult. Some schools dock pay for missed days or hold it against you in year-end evaluations. Also, be aware of the "make-up class" phenomenon: take a day off and you may have to make it up with double classes later. Plan accordingly, and always keep open communication with your coordinator or school head.

But you'll grow in ways you didn't expect

Despite the heat, the unpredictable schedules, and the occasional culture shock, most teachers say the experience is deeply rewarding. You’ll grow as a person, develop resilience, and gain a new perspective on education, communication, and life itself. You’ll build relationships with students that stick with you. You might pick up more Thai language than you expected. You may even find that what started as a gap-year job becomes a career, a passion, or a permanent lifestyle. Teaching English in Thailand isn’t just an adventure. it’s real work, often in unfamiliar and challenging conditions. But if you come with patience, curiosity, and a willingness to learn as much as you teach, you’ll walk away with more than just memories. You’ll leave with stories, friendships, a broadened view of the world - and maybe even a second home.