A) It's a beautiful day! - You are pleased with the weather.
B) Perfect weather we are having today! - A perfect day :-)
C) This is my kind of weather! - It is your favorite weather / You enjoy this weather the most.
A) It's a beautiful day! - 天気を喜んでいる表現です。
B) Perfect weather we are having today! - 完璧な日 :-)
C) This is my kind of weather! - 一番好きな天気です / この天気をもっとも楽しみます。
A brilliant day = a bright and sunny day.
If you are 'lucky with the weather' it means that the weather has been OK for the activities you wanted to do. For example, if there is to be a school sports day outside and it does not rain, you could say, "We're lucky with the weather." Rain would obviously cause the activity to be cancelled.
If something turns out to be a particular thing, it is discovered to be that thing.
"Cosgrave's forecast turned out to be quite wrong."
"It turned out that I knew the person who got shot."
A brilliant day = 素晴らしい天気のいい日
'lucky with the weather'これは何か外に出る時にいるも天気が良い、晴れ男晴れ女のことですね。例えば、運動会で雨が降らないなど、 "We're lucky with the weather."ということができます。雨天でもあれば中止になってしまいますからね。
何かが特定の何かであるとわかったとき、にturn outが使われます。
"Cosgrave's forecast turned out to be quite wrong." コスグレーヴの天気予想っていっつも外れるよね。
"It turned out that I knew the person who got shot."撃たれた男が自分の知り合いだとわかった。
Perfect-this is when something is as good as it possibly can be.
"The weather is perfect today" means that the weather is the best it can be.
I hope this helps :)
“Perfect”は何かが完璧であることです。”The weather is perfect today”とは天気がこの上なく最高であるという意味です。ご参考にしていただければ幸いです。
A: The weather is great
B: The weather is perfect
A: This is lovely weather, is it not?
B: I agree. This is perfect weather.
例１
A: The weather is great（いい天気ですね）
B: The weather is perfect（いい天気です）
例２
A: This is lovely weather, is it not?（いい天気ですね）
B: I agree. This is perfect weather.（そうですね。いい天気です）
アメリカ合衆国 
南アフリカ 
イギリス 
