When to go · Southwest Harbor
Southwest Harbor, month by month
The best months for Southwest Harbor: Jun, Jul, Aug. Months to avoid: Jan, Feb, Dec.
Month by month
- JanuaryAvoidListed as a month to avoid: Dec–Feb (cold, limited services).2 °C (36 °F) / -9 °C (16 °F), 10 rain days36 °F (2 °C) / 16 °F (-9 °C), 10 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Dec–Feb (cold, limited services).3 °C (37 °F) / -8 °C (18 °F), 9 rain days37 °F (3 °C) / 18 °F (-8 °C), 9 rain daysCrowds: Low · 1 festival or holiday
- MarchGoodOutside the best window (Jun–Aug). Across United States: Spring break fills Florida beaches and parks; the desert parks come into season.7 °C (45 °F) / -4 °C (25 °F), 9 rain days45 °F (7 °C) / 25 °F (-4 °C), 9 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (Jun–Aug). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.13 °C (55 °F) / 1 °C (34 °F), 8 rain days55 °F (13 °C) / 34 °F (1 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- MayGoodOutside the best window (Jun–Aug). Across United States: Warm and green; Memorial Day (last Monday) opens the summer season; timed-entry systems start at some parks.18 °C (64 °F) / 6 °C (43 °F), 8 rain days64 °F (18 °C) / 43 °F (6 °C), 8 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Southwest Harbor's best window: Jun–Aug.23 °C (73 °F) / 11 °C (52 °F), 7 rain days73 °F (23 °C) / 52 °F (11 °C), 7 rain daysCrowds: High
- JulyGreatInside Southwest Harbor's best window: Jun–Aug.26 °C (79 °F) / 14 °C (57 °F), 7 rain days79 °F (26 °C) / 57 °F (14 °C), 7 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Southwest Harbor's best window: Jun–Aug.25 °C (77 °F) / 13 °C (55 °F), 8 rain days77 °F (25 °C) / 55 °F (13 °C), 8 rain daysCrowds: High
- SeptemberGoodOutside the best window (Jun–Aug). Across United States: After Labor Day the crowds drop and parks stay open; Florida and the Gulf are at hurricane peak.21 °C (70 °F) / 9 °C (48 °F), 9 rain days70 °F (21 °C) / 48 °F (9 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGoodOutside the best window (Jun–Aug). Across United States: Best all-round month: New England foliage, desert parks, cooler cities. High roads start closing late in the month.15 °C (59 °F) / 4 °C (39 °F), 9 rain days59 °F (15 °C) / 39 °F (4 °C), 9 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Jun–Aug). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.9 °C (48 °F) / -1 °C (30 °F), 10 rain days48 °F (9 °C) / 30 °F (-1 °C), 10 rain daysCrowds: Medium · 1 festival or holiday
- DecemberAvoidListed as a month to avoid: Dec–Feb (cold, limited services).4 °C (39 °F) / -6 °C (21 °F), 11 rain days39 °F (4 °C) / 21 °F (-6 °C), 11 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Southwest Harbor, side by side.
Verdict
Jun: Great
Jul: Great
Daytime high
Jun: 23 °C (73 °F)73 °F (23 °C)
Jul: 26 °C (79 °F)79 °F (26 °C)
Night low
Jun: 11 °C (52 °F)52 °F (11 °C)
Jul: 14 °C (57 °F)57 °F (14 °C)
Rain days
Jun: 7
Jul: 7
Crowds
Jun: High
Jul: High
Prices
Jun: High
Jul: High
Festivals listed
Jun: 0
Jul: 1
June: Inside Southwest Harbor's best window: Jun–Aug.
July: Inside Southwest Harbor's best window: Jun–Aug.
Southwest Harbor: figures are long-term averages from this guide, not a forecast.