Learn Turkish: Her yıl okul eylül ayında başlıyor. - Every year, school starts in September.

In Turkish, it is very common to add the word for month (ay) after the specific month's name. Eylül ayında literally means in the month of September. You can also just say eylülde (in September), but using ayında is a very natural phrasing you will hear often.

How does the word ayında break down?

It is made of ay (month) plus ı (a suffix linking it to September) plus n (a buffer letter) plus da (the location suffix). Together, eylül ayı means month of September, and adding -nda makes it in the month of September.

Why isn't eylül capitalized?

In Turkish, months and days of the week are only capitalized when they are part of a specific, exact date with a number (for example, 15 Eylül). Because this sentence just mentions September in a general way, it is written with a lowercase letter.

The English translation uses the simple present tense, but doesn't başlıyor mean is starting?

Yes, the -yor suffix creates the present continuous tense. However, Turkish frequently uses this tense for general facts, routines, or things that happen regularly (like her yıl, meaning every year). In English, we naturally translate this routine action to the simple present tense.