Best Time to Visit Gaithersburg: Month-by-Month Guide
Best months for Gaithersburg: September, October, June, August.
- Best months for Gaithersburg: September, October, June, August.
- Peak season is July, August, June. Expect higher prices and more visitors (estimated from the climate, not from visitor counts).
- Shoulder season: April, May, September, October. Good weather without the busiest period.
- Wettest months: May, July, June.
- The least pleasant month is January (score 4.9).
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 5°C | -2°C | 79 mm | 9 | – | – | 4.9 |
| February | 7°C | -1°C | 71 mm | 9 | – | – | 5.3 |
| March | 12°C | 2°C | 97 mm | 10 | – | – | 6.0 |
| April | 19°C | 8°C | 87 mm | 11 | – | – | 7.1 |
| May | 24°C | 13°C | 97 mm | 12 | – | – | 7.4 |
| June | 28°C | 18°C | 91 mm | 11 | – | – | 7.5 |
| July | 31°C | 21°C | 102 mm | 12 | – | – | 7.0 |
| August | 30°C | 20°C | 85 mm | 11 | – | – | 7.5 |
| September | 26°C | 16°C | 113 mm | 10 | – | – | 7.7 |
| October | 19°C | 10°C | 87 mm | 8 | – | – | 7.6 |
| November | 13°C | 4°C | 77 mm | 8 | – | – | 6.6 |
| December | 7°C | 0°C | 89 mm | 9 | – | – | 5.3 |
Frequently asked questions
When is the best time to visit Gaithersburg?
The best months are September, October, June, August.
When is the rainy season in Gaithersburg?
The wettest months are May, July, June.