Not an exact equivalent, but closest to it would be 'Shuumatsu wo tanoshinde kudasai.' (lit): ( Enjoy the weekend.)
幸せな人生を送ってください
shiawase na jinsei wo okutte kudasai.
I had a great weekend it is really Watashi WA ii shūmatsudatta for good weekend.
tanoshi shumatsu
You can say Jae-mit-ge-no-la.
You can't say "At the Weekend", it's not proper english. You can say "on the weekend" if you mean, for example, "we can't go to Disneyland today, but maybe on the weekend we can."
hiana caflette
Party.
大地 Daichi
__(item that is great goes here)__ WA sugoi desu.
"Have a great weekend" in Polish is "Miłego weekendu".
週末ã®æ´»å‹• (shuumatsu no katsudou) may be used to mean 'weekend activities' in Japanese.
It's typical to say Happy Weekend! Simplified mandarin: 周末快乐。Prounounced zhōu mò kuài lè.
O la'u fa'ai'uga o le vaiaso na maoa'e