"The mornings and evenings are cold but I'm glad that it's still warm during the day."
"It's getting colder in the morning and the evening but there are still days where it is warm in the middle of the day."
"The mornings and evenings are cold but I'm glad that it's still warm during the day."
"the mornings and evenings" 「朝晩は」
"are cold but" 「寒いけど」
["I'm glad that ~" 「〜嬉しい」](https://eikaiwa.dmm.com/uknow/questions/46845/)
"it's still warm" 「まだ暖かい」
"during the day" 「昼間」
"It's getting colder in the morning and the evening but there are still days where it is warm in the middle of the day."
"it's getting colder ~" 「〜寒くなっていく」
"in the morning and the evening" 「朝晩」
"there are still ~" 「まだ〜あって」
"days where is warm in the middle of the day" 「昼間はまだ暖かい日が」
"
The mornings and evenings are cold, but sometimes it warms up in the afternoon which makes me happy.
この場合、次のように言えます。
ーThe mornings and evenings are cold, but sometimes it warms up in the afternoon which makes me happy.
「朝晩は寒いけど、時々午後は暖かくなるから嬉しい」
to warm up で「暖かくなる」
ーI'm feeling the effects of global warming after all.
「やっぱり温暖化の影響を感じるよ」
global warming で「温暖化」
ご参考まで！
オーストラリア 
カナダ 
