Weather in Washington DC 🇺🇸
Monthly weather averages & travel planning
March
Avg Temp
13°C
Rain Days
10 days
Sun Hours
8 hrs
Humidity
65%
North America › 🇺🇸 United States › Washington DC
Updated: March 2026
Is March a Good Time to Visit Washington DC?
4/10
Fair
March is a fair time to visit Washington DC (4/10). With 8 daily sunshine hours and only 10 rain days, this month delivers genuinely reliable outdoor conditions, ranking it 8th sunniest of the year in Washington DC. March suits travellers visiting for indoor culture, food, and architecture rather than outdoor activities. Pack accordingly for 10 potential rain days. April offers a similar profile at lower hotel rates if dates are flexible. The main practical note: Washington DC's popular sites are busiest between 10am and 3pm regardless of season. Arriving at opening time or after 4pm makes a significant difference to the experience. Planning tips: most accommodation categories have availability, and last-minute deals are common. The quieter streets and shorter queues can make this a genuinely enjoyable time to visit for the right type of traveller. Budget-conscious visitors will find the best value of the year in this period.
vs February:8°C avg high
Washington DC in March rewards travelers with average highs of 13°C and overnight lows around 2°C. Expect around 10 rainy days, so a compact umbrella is worth carrying. With 8 daily sunshine hours on average, conditions are cool and bracing, well suited for active days on foot.
13°C
55°F
Avg High
2°C
36°F
Avg Low
10 days
100 mm total
Rain Days
8h
per day avg
Sunshine
65%
Moderate
Humidity
Temperature in Washington DC in March
The 11°C day-night temperature range is typical for continental climates: a light jacket in the morning that you shed by midday and need again after sunset. Humidity averages 65%, which is comfortable for most visitors. On warmer days, lighter fabrics help with the mild stickiness in the afternoon. UV index averages 6 this month, classed as moderate. Sunscreen is a sensible precaution for extended outdoor time, particularly at midday. Wind averages 18 km/h, light enough to be refreshing on warm days but noticeable in open coastal areas or elevated viewpoints. In Fahrenheit: 55°F average high, 36°F overnight low. Data sourced from Open-Meteo ERA5 climate reanalysis (1991–2020 normals).
Temperature Trends
High
Low
Rainfall (mm)
0-20 mm21-50 mm51-100 mm100+ mm
What to Wear in Washington DC in March
Morning2°CBefore the day warms up
Afternoon13°CPeak daytime temperature
Evening5°CAfter sunset cools down
Packing for Washington DC in March means dressing for 13°C days and 2°C evenings. A mid-weight jacket over a sweater handles 13°C daytime temperatures; the combination stays comfortable all day without overheating. Evenings drop 11°C to around 2°C, a notable shift that catches underprepared visitors off guard. Pack a dedicated evening layer. Comfortable walking trainers are the versatile choice for both outdoor sightseeing and indoor venues. A compact foldable umbrella weighs almost nothing and earns its keep across 10 potential rainy days.
Local tip: Layers are more practical than a single heavy garment in Washington DC. The day-to-evening temperature shift rewards packing a versatile mid-layer you can add or remove as conditions change.
Events in Washington DC in March
March has no major festivals or public holidays in Washington DC, which is one of its practical advantages for independent travellers. Attractions run at lower capacity than during peak event periods, queues are shorter, and accommodation is easier to find without needing to book many months in advance. Local restaurants, markets, and transport operate at a relaxed pace, making this an ideal time for visitors who prefer a more authentic, unhurried experience of everyday city life rather than large crowds drawn in by a single major headline event.
What to Pack for Washington DC in March
Based on 13°C average highs and 10 rainy days
- Warm jacket (down or fleece)
- Merino wool base layer (regulates temperature and resists odour)
- Sweaters and lined trousers
- Scarf and lightweight gloves
- Compact folding umbrella
- Waterproof outer layer or packable rain jacket
- Quick-dry clothing that recovers fast after a shower
- Comfortable walking shoes (a second pair lets the first air out overnight)
- Universal travel adapter
- Small day pack for city exploration
- Reusable water bottle
Best Activities in Washington DC in March
- Explore the old town's cobblestone backstreetsMorning (9-11am)At 13°C, conditions are pleasant for unhurried exploration on foot
- Visit hilltop viewpoints for panoramic city viewsLate afternoon (4-6pm)Low sun angle creates dramatic light for photography while temperatures remain comfortable
- Bicycle rental for a half-day city circuitMid-morning startMild 13°C temperatures are ideal for extended cycling without excessive effort
- Boat tour of the river, bay, or canal networkLate morning departureComfortable weather makes open-deck boats viable without wind-chill concerns
- Afternoon in a world-class museum or galleryAfternoon (2-5pm)Pairs well with outdoor morning activities and provides a mid-day rest from sightseeing
- Coffee-house or traditional cafe culture experienceMid-morning or post-lunchA cultural ritual in this region that rewards slow appreciation regardless of weather
- Evening live music, theatre, or opera performanceEvening shows typically at 7-9pmConsistent evening temperatures make getting to and from evening venues comfortable
- Visit the main botanical garden or city park at seasonal peakYear-round; best light in morningMarch brings distinct seasonal changes to public green spaces worth exploring
- Warm up with traditional hot dishes: local stew, fondue, or braised specialities at a neighbourhood restaurantLunch (12-2pm) or dinner (7-9pm)Cold-weather cuisine is a genuine cultural experience and the best local restaurants serve their heartiest dishes in cooler months
Why is Washington DC cool in March?
March marks the transition into warmer conditions in Washington DC, as the sun angle climbs and day length extends. Temperatures averaging 13°C by day and 2°C overnight reflect a city shaking off winter: the morning air still carries a cool edge, but afternoons are noticeably warmer than even four weeks prior. At 39 degrees north latitude, spring is one of the most dynamic periods in the annual cycle, with weekly temperature changes that can be larger than the month-to-month shifts of summer. This volatility is part of the appeal: Washington DC in March has a freshness and energy that peak-summer heat tends to mute. Layers remain essential, but there are reliable pockets of warmth that reward patience. Climate data: Open-Meteo ERA5 (1991–2020).
Sunshine Hours
The average number of hours per day with direct sunlight. Calculated from satellite measurements. Days with more than 7 hours of sunshine are ideal for outdoor activities. Under 3 hours means overcast conditions dominate.
UV Index
A scale from 0-11+ measuring ultraviolet radiation intensity. UV 0-2: Minimal risk. UV 3-5: Moderate, wear sunscreen. UV 6-7: High, hat and SPF 30+ essential. UV 8-10: Very High, limit midday exposure. UV 11+: Extreme, seek shade between 10am-4pm.
Rain Days
A rain day is counted when precipitation exceeds 0.1mm. This threshold captures even light drizzle. Unlike total rainfall in mm, rain days tells you how often you might need an umbrella, which is useful for planning outdoor activities.
Humidity
Relative humidity as a percentage. Below 40%: Dry, skin and throat may feel parched. 40-60%: Comfortable, ideal for most people. 60-80%: Sticky, light breathable fabrics recommended. Above 80%: Muggy, heat feels more intense; quick-dry clothing is essential.
Frequently Asked Questions
Washington DC in March
In March, Washington DC experiences average highs of 13°C (55°F) and lows of 2°C (36°F). Expect around 10 rainy days and 8 hours of sunshine per day, with humidity averaging 65%. The 11°C gap between daytime and overnight temperatures is worth planning around: light layers work for most visitors during the day, but an extra jacket is essential for evenings. UV index averages 6, so sun protection is advisable on clear days.
Washington DC typically sees 10 rainy days in March, with total precipitation of around 100mm. Rain is moderate and manageable. Showers tend to pass quickly, and a light rain layer or foldable umbrella is sufficient protection for most days. For context, the driest month in Washington DC typically sees 4-6 fewer rain days than March.
Pack a warm jacket, sweaters, and layering pieces for Washington DC in March. Temperatures can drop to 2°C at night, so thermal underlayers are advisable for evening outings. Waterproof footwear is important with 10 rainy days expected. A scarf, hat, and gloves handle the windchill on clear cold days, which often feel colder than the thermometer reads.
Yes, March is an excellent time to visit Washington DC. With 8 daily sunshine hours and only 10 rainy days, conditions are ideal for sightseeing and outdoor activities. Temperatures averaging 13°C during the day are comfortable for long walks and outdoor dining. This is peak travel season, so booking accommodation in advance and arriving at popular attractions early in the morning helps avoid the busiest periods.
The average high temperature in Washington DC in March is 13°C (55°F), and the average low is 2°C (36°F). The mean daily temperature is approximately 8°C (46°F). The day-to-night range of 11°C is moderate, meaning a single light jacket covers most situations. These are 30-year climate normals based on the 1991 to 2020 reference period; individual years will vary, particularly in transitional months like spring and autumn.
The best month to visit Washington DC is generally August. August offers the most sunshine at 11 hours per day and only 11 rainy days. Average temperatures reach 30°C, making it comfortable for sightseeing, outdoor dining, and exploring the city. If your travel dates are flexible, planning your trip around August gives you the best chance of dry, bright weather.
March is shoulder or low season in Washington DC, meaning fewer tourists and generally lower prices than peak months. With 8 sunshine hours and 10 rainy days, the weather is less of a draw for mass tourism. This is an advantage for travellers who prefer a quieter, more relaxed experience with shorter queues and easier accommodation availability.
In March, Washington DC suits a range of activities thanks to cool conditions around 13°C. Mix of indoor and outdoor activities works well given the moderate chance of rain. Top options include exploring historic neighbourhoods, visiting museums and galleries, local food markets, and day trips to surrounding areas. With 8 hours of sunshine, parks and waterfront walks are particularly enjoyable.
March ranks 8th sunniest of the year in Washington DC, with an average 8 daily sunshine hours. The driest months are October, November, and January. July is the hottest month (31°C avg high); January is the coolest (6°C). From here, temperatures rise 6°C into April. Compared to last month (February: 8°C high, 9 rain days), March is warmer and wetter. March sits in the middle of the annual sunshine ranking for Washington DC, offering a reasonable balance of good weather and manageable crowds.
Year-Round Climate
| Month | High | Low | Rain Days | Sun | Details |
|---|---|---|---|---|---|
| January | 6°C | -2°C | 9 | 7h | View |
| February | 8°C | -1°C | 9 | 8h | View |
| March | 13°C | 2°C | 10 | 8h | View |
| April | 19°C | 8°C | 10 | 9h | View |
| May | 24°C | 13°C | 12 | 10h | View |
| June | 29°C | 18°C | 12 | 11h | View |
| July | 31°C | 21°C | 13 | 12h | View |
| August | 30°C | 20°C | 11 | 11h | View |
| September | 26°C | 17°C | 10 | 9h | View |
| October | 20°C | 11°C | 8 | 8h | View |
| November | 13°C | 5°C | 8 | 7h | View |
| December | 8°C | 0°C | 9 | 6h | View |
January
9 rain days, 7h sun
6°-2°
February
9 rain days, 8h sun
8°-1°
March
10 rain days, 8h sun
13°2°
April
10 rain days, 9h sun
19°8°
May
12 rain days, 10h sun
24°13°
June
12 rain days, 11h sun
29°18°
July
13 rain days, 12h sun
31°21°
August
11 rain days, 11h sun
30°20°
September
10 rain days, 9h sun
26°17°
October
8 rain days, 8h sun
20°11°
November
8 rain days, 7h sun
13°5°
December
9 rain days, 6h sun
8°0°
Other Months in Washington DC
Plan Your Trip to Washington DC
Data Sources for Washington DC
Climate normals represent 30-year averages (1991-2020). Individual years may vary.