Recently we DID not (DIDN’T) have enough rain.
So there WAS not ENOUGH water in the river and others.
SO THAT’S WHY we got A rainy day.
Even though the amount of rain is ONLY A little, it is okay for the plantS

NOTES:
CAPITALS = CORRECTIONS
- Just remember to use the ‘past tense’ when talking about something that ‘happened’. ‘I do not do something’ – Present, “I didn’t (did not) do something = past tense
- “not water in the river” – I know what you mean = “was not enough water in the river” more natural.
- “in this we got a rainy day” – ‘in this’ doesn’t make sense here, but you can use so many different starting points = “so that’s why…” OR “Which resulted with us getting….”
- “is little’ = something is little = better to say = ‘only a little’ subject + only a little.

Hope this helps, please ask any questions, I will get back ASAP to you.