Last Summer / Season 1 Season guide Last Summer: Season 1 21 episodes Premiered Jan 1, 2021 Updated Jul 22, 2026 Spoiler-safe Advertisement Episodes S1·E1 Episode 1 Jan 1, 2021 · 120 min S1·E2 Episode 2 Jan 8, 2021 · 120 min S1·E3 Episode 3 Jan 15, 2021 · 120 min S1·E4 Episode 4 Jan 22, 2021 · 120 min S1·E5 Episode 5 Jan 29, 2021 · 120 min S1·E6 Episode 6 Feb 5, 2021 · 120 min S1·E7 Episode 7 Feb 12, 2021 · 120 min S1·E8 Episode 8 Feb 19, 2021 · 120 min S1·E9 Episode 9 Feb 26, 2021 · 120 min S1·E10 Episode 10 Mar 5, 2021 · 120 min S1·E11 Episode 11 Mar 12, 2021 · 120 min S1·E12 Episode 12 Mar 19, 2021 · 120 min S1·E13 Episode 13 Mar 26, 2021 · 120 min S1·E14 Episode 14 Apr 2, 2021 · 120 min S1·E15 Episode 15 Apr 9, 2021 · 120 min S1·E16 Episode 16 Apr 16, 2021 · 120 min S1·E17 Episode 17 Apr 23, 2021 · 120 min S1·E18 Episode 18 May 14, 2021 · 120 min S1·E19 Episode 19 May 21, 2021 · 120 min S1·E20 Episode 20 May 28, 2021 · 120 min S1·E21 Episode 21 Jun 4, 2021 · 120 min