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Gaithersburg, United States Snapshot 2026
Where is Gaithersburg?
Gaithersburg, United States
- Continent
- Americas
- Country
- United States
- City
- Gaithersburg
- Population
- 67.5K
- Elevation
- 153 m
- Coordinates
- 39.14°, -77.20°
Gaithersburg is a city in United States with a population of approximately 67.5K. Average temperatures range from -2°C (28°F) in January to 31°C (87°F) in July. The best time to visit is April, May, June, August, September. The city sits at an elevation of 153 m above sea level.
Time in Gaithersburg right now
Open full time & time zone page 15:17 17
Monday, June 15, 2026
IANA time zone
America/New_York
Daylight saving
DST in effect
EST / EDT
Next DST change
November 1
backward -1h
Live weather in Gaithersburg
Daylight in Gaithersburg today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 54m
Climate normals for Gaithersburg
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Fair April best
Good May best
Excellent June best
Excellent July
Fair August best
Good September best
Excellent October
Good November
Fair December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 5°C / -2°C | 2°C / -7°C | 10days (82 mm) Wet | 6.1h Fair | 68% Muggy | 2.8 Moderate | Poor | View Details |
| February | 9°C / 0°C | 5°C / -4°C | 10days (87 mm) Wet | 6.8h Fair | 67% Muggy | 3.5 Moderate | Poor | View Details |
| March | 13°C / 3°C | 10°C / -1°C | 10days (78 mm) Wet | 8.3h Good | 64% Muggy | 5 Moderate | Fair | View Details |
| April best | 18°C / 8°C | 17°C / 5°C | 10days (84 mm) Wet | 9.1h Good | 65% Muggy | 5.8 High | Good | View Details |
| May best | 22°C / 13°C | 23°C / 12°C | 14days (122 mm) Wet | 9.3h Good | 73% Muggy | 6.4 High | Excellent | View Details |
| June best | 28°C / 18°C | 30°C / 19°C | 12days (111 mm) Wet | 11.4h Excellent | 69% Muggy | 7.3 Very High | Excellent | View Details |
| July | 31°C / 21°C | 34°C / 24°C | 14days (141 mm) Wet | 11.9h Excellent | 71% Muggy | 7.5 Very High | Fair | View Details |
| August best | 29°C / 20°C | 32°C / 22°C | 12days (106 mm) Wet | 10.6h Excellent | 74% Muggy | 6.9 High | Good | View Details |
| September best | 26°C / 17°C | 27°C / 18°C | 10days (110 mm) Wet | 8.6h Good | 74% Muggy | 5.1 High | Excellent | View Details |
| October | 20°C / 11°C | 19°C / 10°C | 8days (75 mm) Wet | 7.9h Good | 72% Muggy | 4.5 Moderate | Good | View Details |
| November | 13°C / 4°C | 10°C / 1°C | 8days (74 mm) Wet | 7.2h Good | 68% Muggy | 3.1 Moderate | Fair | View Details |
| December | 8°C / 0°C | 4°C / -4°C | 10days (96 mm) Wet | 5.9h Fair | 70% Muggy | 2.3 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 5°C / -2°C . Feb: 9°C / 0°C . Mar: 13°C / 3°C . Apr: 18°C / 8°C . May: 22°C / 13°C . Jun: 28°C / 18°C . Jul: 31°C / 21°C . Aug: 29°C / 20°C . Sep: 26°C / 17°C . Oct: 20°C / 11°C . Nov: 13°C / 4°C . Dec: 8°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 82 mm. Feb: 87 mm. Mar: 78 mm. Apr: 84 mm. May: 122 mm. Jun: 111 mm. Jul: 141 mm. Aug: 106 mm. Sep: 110 mm. Oct: 75 mm. Nov: 74 mm. Dec: 96 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 68%. Feb: 67%. Mar: 64%. Apr: 65%. May: 73%. Jun: 69%. Jul: 71%. Aug: 74%. Sep: 74%. Oct: 72%. Nov: 68%. Dec: 70%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 17 km/h . Mar: 18 km/h . Apr: 18 km/h . May: 14 km/h . Jun: 14 km/h . Jul: 12 km/h . Aug: 11 km/h . Sep: 13 km/h . Oct: 15 km/h . Nov: 16 km/h . Dec: 16 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 6. Jun: UV 7. Jul: UV 8. Aug: UV 7. Sep: UV 5. Oct: UV 5. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Gaithersburg has a population of approximately 67.5K.
The best months to visit Gaithersburg are April, May, June, August, September, when temperatures are pleasant and rainfall is lower.
Gaithersburg receives approximately 1166mm of rainfall annually across 128 rainy days.
Gaithersburg is located in United States, in the Americas region.
Gaithersburg sits at an elevation of 153 m (502 ft) above sea level.