When to go · Portland, Maine
Portland, Maine, month by month
The best months for Portland, Maine: Jun, Jul, Aug, Sep, Oct. Months to avoid: Jan, Feb, Mar.
Month by month
- JanuaryAvoidListed as a month to avoid: Jan–Mar (cold, ice, some seasonal closures).0 °C (32 °F) / -9 °C (16 °F), 11 rain days32 °F (0 °C) / 16 °F (-9 °C), 11 rain daysCrowds: Low
- FebruaryAvoidListed as a month to avoid: Jan–Mar (cold, ice, some seasonal closures).2 °C (36 °F) / -8 °C (18 °F), 9 rain days36 °F (2 °C) / 18 °F (-8 °C), 9 rain daysCrowds: Low · 1 festival or holiday
- MarchAvoidListed as a month to avoid: Jan–Mar (cold, ice, some seasonal closures).6 °C (43 °F) / -3 °C (27 °F), 11 rain days43 °F (6 °C) / 27 °F (-3 °C), 11 rain daysCrowds: Medium · 2 festivals or holidays
- AprilGoodOutside the best window (Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds). Across United States: Good month for the Southwest, Washington cherry blossoms, the South; mountain roads still closed.12 °C (54 °F) / 3 °C (37 °F), 11 rain days54 °F (12 °C) / 37 °F (3 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- MayGoodOutside the best window (Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds). 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) / 8 °C (46 °F), 12 rain days64 °F (18 °C) / 46 °F (8 °C), 12 rain daysCrowds: Medium · 1 festival or holiday
- JuneGreatInside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.23 °C (73 °F) / 13 °C (55 °F), 11 rain days73 °F (23 °C) / 55 °F (13 °C), 11 rain daysCrowds: High
- JulyGreatInside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.26 °C (79 °F) / 17 °C (63 °F), 10 rain days79 °F (26 °C) / 63 °F (17 °C), 10 rain daysCrowds: High · 1 festival or holiday
- AugustGreatInside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.26 °C (79 °F) / 16 °C (61 °F), 9 rain days79 °F (26 °C) / 61 °F (16 °C), 9 rain daysCrowds: High
- SeptemberGreatInside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.22 °C (72 °F) / 12 °C (54 °F), 9 rain days72 °F (22 °C) / 54 °F (12 °C), 9 rain daysCrowds: Medium · 1 festival or holiday
- OctoberGreatInside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.15 °C (59 °F) / 6 °C (43 °F), 10 rain days59 °F (15 °C) / 43 °F (6 °C), 10 rain daysCrowds: Medium
- NovemberMixedOutside the best window (Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds). Across United States: Quiet between holidays; Thanksgiving week is the busiest travel period of the year.9 °C (48 °F) / 1 °C (34 °F), 11 rain days48 °F (9 °C) / 34 °F (1 °C), 11 rain daysCrowds: Medium · 1 festival or holiday
- DecemberMixedOutside the best window (Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds). Across United States: Holiday lights in New York, ski season opens; flights and hotels peak around Christmas and New Year.3 °C (37 °F) / -5 °C (23 °F), 11 rain days37 °F (3 °C) / 23 °F (-5 °C), 11 rain daysCrowds: High · 1 festival or holiday
Compare two months
Weather, crowds and prices for any two months in Portland, Maine, 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: 13 °C (55 °F)55 °F (13 °C)
Jul: 17 °C (63 °F)63 °F (17 °C)
Rain days
Jun: 11
Jul: 10 (better)
Crowds
Jun: High
Jul: High
Prices
Jun: High
Jul: High
Festivals listed
Jun: 0
Jul: 1
June: Inside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.
July: Inside Portland, Maine's best window: Jun–Sep for warm weather and ferries; Sep–Oct for fewer crowds.
Portland, Maine: figures are long-term averages from this guide, not a forecast.