Summer

Japanese summer is always too hot and high humidity. I was hate it. But I was staying lived in Berlin for three months, in early summer this year. There was no sun and it was always cold, even if it as late as Jun and July.
So, I changed my mind. The Japanese sun is too strong but now I feel summer is a blessing it.

Summer

Japanese summer is always too hot and high humidity. I was hated it. But I was staying Berlin for three months in early summer this year. There was no sun and it was cold. Even if it in June and July.
So, I changed my mind. Japanese sun is too strong, but now, I feel summer is a blessing it.

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This was good. There were only a few minor problems here and there. That is all grammatically correct, but I'll also rewrite the whole thing as I would have said it.
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Summer in Japan is always too hot and humid. I really hate it. Earlier this year though, I went to Berlin for 3 months. You couldn't see the sun, and it was always cold; Even in June and July! So now I've changed my mind about summer in Japan. It's still hot, but it's much better than Berlin's summer. 

Summer

Japanese summer is always too hot and high humidity highly humid. I was really hate it. But I was staying stayed in Berlin for three month in early summer this year. There ware was no sun and cold it was cold even if it was in Jun and July.
So, I have changed my mind. Although Japanese sun is too strong but, now I feel summer blessing it the blessing of summer.

Summer

Japanese summer is always too hot and high humidity. I was hate it. But I was staying Berlin for three month in early summer this year. There ware no sun and cold.even if it Jun and July.
So, I changed my mind. Japanese sun is too strong but now, I feel summer blessing it.

high humidity = and has a high humidity.

I was hate it = I hate it!

three month = three months

ware = was

and cold. = and it was cold,

it Jun and July = it is June or July

too = very

summer blessing it = the blessing of summer.

頑張ってね！英語が上手ですよ！