Best time to fly to South Berwick
The most popular months for travelers to fly to South Berwick are March, April, and August, when peak temperatures in South Berwick can reach up to 69.6°F in August. If you prefer quieter travel, consider January, the least busy and relatively cheaper time to visit with fewer crowds and temperatures around 27°F. For better deals, September usually offers the lowest average one-way fare around $212, roughly 9% cheaper than the yearly average. Looking for additional cheaper months to fly? January, August, and May offer average one-way fares of around $222, making them good options for flexible travelers.
Month | Temperature | Precipitation | Cloudiness | Demand | Average one-way Fare |
| January | 27.0°F (-2.8°C) | Light Rain | Mostly Sunny | Moderately Low | $219 |
| February | 28.0°F (-2.2°C) | Light Rain | Mostly Sunny | Average | $247 |
| March | 34.7°F (1.5°C) | Light Rain | Mostly Sunny | Moderately High | $252 |
| April | 45.0°F (7.2°C) | Light Rain | Mostly Sunny | Moderately High | $265 |
| May | 55.4°F (13.0°C) | Light Rain | Mostly Sunny | Average | $226 |
| June | 63.5°F (17.5°C) | Light Rain | Mostly Sunny | Average | $236 |
| July | 70.5°F (21.4°C) | Light Rain | Mostly Sunny | Average | $230 |
| August | 69.6°F (20.9°C) | Light Rain | Mostly Sunny | Moderately High | $220 |
| September | 63.0°F (17.2°C) | Light Rain | Mostly Sunny | Average | $212 |
| October | 52.7°F (11.5°C) | Light Rain | Mostly Sunny | Average | $227 |
| November | 41.4°F (5.2°C) | Light Rain | Mostly Sunny | Moderately Low | $229 |
| December | 33.3°F (0.7°C) | Light Rain | Mostly Sunny | Moderately Low | $240 |
*Average one-way fare is based on Expedia flight booking data from January 2025 to April 2026 for the specified route and travel class and may change depending on availability, dates, and demand.