As synonyms, they're essentially the same word that can be used at the same times.
They operate similar to verbs meaning the equivalent of "maybe", or "perhaps".
Some example sentences could be:
"I [may/might] go to store, but I'm not sure yet."
"[May/Might] I have a slice of cake?"
"She [may/might] just be pregnant."
might= maybe may= you have permission
The month of May might be better for our vacation this year. May might carry the fight!
"Might" is when you're going to decide something, like "I might go to the pool today or I might not.". "May" is when you're going to ask something. " May I go to the pool today?" would be an example of may.
Might
Meaning you might - or might not , have something.
It is neither. May/might is are modal auxiliaries. Examples of use: * That might be true. * I may do it if I have the time. * May I get up from the table? - Yes, you may [get up ... - implied]. * I may look for the book later. * She might have done it. * They might have told us about their plans earlier [but they didn't do so]. Usually, may/might indicates possibility or permission. (The last example is a slightly 'roundabout' way of indicating failure to do something). In many respects may/might is similar to can/could, which is also a modal auxiliary.
"Might" is the simple past tense of "may". Example: I told you that you might go yesterday, but you may not go today."
The daughter cells may or may not separate
Might is more tentative.
The present tense is used to describe actions happening now, habitual actions, general truths, and scheduled future actions. It is formed by using the base form of the verb or adding an "-s" or "-es" for third-person singular subjects. Examples include: "I work at a bank" (habitual action), "She runs every morning" (action happening now), and "The sun rises in the east" (general truth).
The phrase "may be" indicates a possibility or uncertainty about something that is being mentioned. It suggests that an idea or situation could potentially be true or valid, but it is not confirmed.
In this situation tradition says that "may" is used for the future and 'might" is used for the past. I might have been in X, (but I'm not telling you). I may go to X, (if I can get time off work).