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Major city · United States

Gaithersburg

Skip as a base unless you have a reason to be here (family, NIST, cheap hotel): 1 night, or use it as a car-based stop 25 min from Washington, DC.

Weather
see forecast
Currency
USD
Best months
Apr–Jun, Sep–Oct
avoid Jul–Aug (hot and humid)
Airports
BWI · DCA · IAD · GAI
Nights
1
Not field-verifiedbasic guide
Print / PDF guide
3 pages, for the metro and roaming-off days
Map
Google Maps Apple Maps Street View
Rules in force · 7Crossing between the US, Canada and Mexico by land needs …Cannabis is legal in Canada and in many US states, but ta…
  • North America ↗Crossing between the US, Canada and Mexico by land needs your passport even on a day trip; rental cars need the company's written permission to cross, and most US and Canadian rental insurance stops at the Mexican border.
  • North America ↗Cannabis is legal in Canada and in many US states, but taking any amount across the US, Canadian or Mexican border is a federal crime — including edibles and vapes.
  • North America ↗The busiest US and Canadian national parks need timed-entry, campsite or lodge reservations in summer; release dates are months ahead.
  • United States ↗Check whether you need an ESTA (Visa Waiver Program) or a visa on the official CBP and State Department sites; apply only through esta.cbp.dhs.gov, not third-party sites, and allow time before you book.
  • United States ↗Several popular national parks use timed-entry or vehicle reservations in peak season; check each park's page on nps.gov and book on recreation.gov before fixing your dates.
  • United States ↗Medical care is very expensive for visitors; buy travel insurance with high medical cover before you fly.
  • United States ↗Tipping is expected: about 15–20% at sit-down restaurants and bars, and a tip for taxis, hotel staff and guides.

Gaithersburg is a Montgomery County suburb of about 70,000 people, 25 minutes north of Washington, DC by car via I-270. It has a small historic Olde Towne, a rail station on the MARC Brunswick line, and the National Institute of Standards and Technology (NIST) headquarters. Most travellers pass through; those who stay come for cheaper hotels, family visits or the county fair.

Essentials

Quick answers and what things cost

Quick answers

The questions people ask first about Gaithersburg, one line each. Tap a card for the full answer.

Cost cheat-sheet

2026 desk estimate · check

Typical prices for the everyday things, as ranges. Your currency is shown next to the local price.

  • Coffee2026 estimate$3–6
  • Sit-down mealSit-down dinner, per person before tax and tip2026 estimate$20–45
  • Street or quick mealBagel sandwich2026 estimate$6–10
  • BeerDraught beer in a bar2026 estimate$6–9
  • Metro or bus rideRideOn bus ride$2
  • SIM or eSIM, a weekeSIM or data SIM, about a week$10–25
  • Budget bedSuite or extended-stay room (up to 4), a night, per roomUS$150
  • Mid-range bedBudget motel room, a night, per roomUS$110
  • High-end bedBudget motel room, a night, per roomUS$150

A day, not counting the bed: Budget US$60 · Mid US$110 · High US$200

Prices in local money; change the currency in the header to see yours next to them. Every price and the budget calculator →

Decide

What it is known for, and when the weather works

At a glance

What the city is known for, how you fly in, and where to find the phrases.

Olde Towne and the 1884 B&O Railroad stationNIST headquartersSeneca Creek State ParkMontgomery County Fair
Airports
BWI Baltimore-Washington International (About 45 min by car; also served by the ICC Bus 201) · DCA Ronald Reagan Washington National (About 35 min by car; reachable by Metrorail but slower) · IAD Washington Dulles International (About 40 min by car; public transport takes much longer) · GAI Montgomery County Airpark (Non-commercial: private planes only, no scheduled airline service)

Weather and climate

Forecast from Open-Meteo · averages rounded

Gaithersburg: next 7 days

Loading forecast…

Forecast: Open-Meteo (CC BY 4.0), model data for this point.

Air quality

Loading…

Model estimate (CAMS via Open-Meteo), not a street-level station; readings near busy roads run higher.

Jan

6°C

−3°C

8 rd

Feb

8°C

−2°C

7 rd

Mar

13°C

2°C

9 rd

Apr

19°C

7°C

9 rd

May

24°C

13°C

10 rd

Jun

29°C

18°C

10 rd

Jul

31°C

21°C

10 rd

Aug

30°C

20°C

9 rd

Sep

26°C

16°C

8 rd

Oct

20°C

9°C

7 rd

Nov

14°C

4°C

8 rd

Dec

8°C

−1°C

8 rd

High / low °C · rd = rain days

Arrive & move

Airports are listed under At a glance; this is how to move once you are in

Getting around

A car is the practical way to move around; RideOn buses cover the main corridors but run on commuter schedules. Metrorail's Red Line ends at Shady Grove, just south of the city. MARC's Brunswick line stops at Gaithersburg and Metropolitan Grove, but trains are geared to commuters with few midday services and none on weekends.

See & do

Day-trips, door to door

Day-trips

Door-to-door, not ride time
Washington, DCgo

Door to door: About 40–60 min by car; about 50 min by MARC (check)

I-270 south to the Capital Beltway, or MARC Brunswick line to Union Station on weekdays

MARC has no weekend service: drive or use Metrorail from Shady Grove.

Rockville

go

Door to door: About 15–20 min

I-270 south, or MARC Brunswick line

Town centre with restaurants and the county seat.

Germantown

go

Door to door: About 15 min

I-270 north, or MARC Brunswick line

Mostly residential; useful if you are already on the MARC line.

Bethesda

go

Door to door: About 30–40 min

I-270 south to I-495, or RideOn bus

Downtown dining and the Red Line.

Silver Spring

caution

Door to door: About 35–45 min

I-270 south to I-495, or RideOn bus

Better reached from DC than from Gaithersburg.

Wheaton

caution

Door to door: About 40–50 min

I-270 south to I-495, or RideOn bus

Long for a half-day; combine with Silver Spring.

Takoma Park

caution

Door to door: About 40–50 min

I-270 south to I-495, or RideOn bus

Small historic district; better from DC.

Olney

caution

Door to door: About 30 min

Car via MD-124 and MD-108

No rail link; car only.

Eat & sleep

Which area to sleep in

Where to sleep

Areas, not hotels: pick the one that fits your arrival time and plans.

Washingtonian Center

Lakeside shopping and restaurant complex off I-270 exit 8; most of the chain hotels are here.

Olde Towne

Historic core around South Summit Avenue and the MARC station; walkable, few beds.

Shady Grove / Frederick Road

Budget and extended-stay motels along the Frederick Road corridor; car needed.

Practical

What a day costs, what to watch out for, and the pocket card

Cost per day

2026 estimate, excluding the bed unless stated
Budget
$60–100 excl. bed
Mid
$100–180 excl. bed
High
$180+ excl. bed

Trip budget

2026 estimate · converts to your currency
Mid-range chain hotel room1 × 1 night × US$160US$160
Food, local transport, entries2 × 1 day × US$110US$220
RideOn bus fare, one ride2 × US$2 · 2026 estimateUS$4
MARC Brunswick line, Gaithersburg to Washington Union Station2 × US$9 · 2026 estimateUS$18
eSIM, about a week of data2 × US$15US$30
Buffer 10%Price creep, a taxi you did not plan, one splurgeUS$43
Trip total≈ US$238 per person per day, bed includedUS$475

2026 estimate

2026 estimate in US dollars; sales tax and tips extra. Lodging and food costs vary; confirm rates for your dates. Your choices stay in this browser.

Prices of common things

Coffee2026 estimate$3–6
Bagel sandwich2026 estimate$6–10
Pho or a bowl of noodles2026 estimate$10–16
Dim sum, per person2026 estimate$15–30
Sit-down dinner, per person before tax and tip2026 estimate$20–45
Draught beer in a bar2026 estimate$6–9
RideOn bus ride$2
eSIM or data SIM, about a week$10–25

2026 estimate; check locally.

Watch out

Safety

Standard US precautions: traffic on I-270 and Frederick Road, summer heat and thunderstorms, and unlit strip-mall car parks at night. Keep valuables out of sight in parked cars and use 911 for emergencies.
  • MARC Brunswick line has no weekend service and few midday trains: check the timetable before relying on it.
  • Many sights and restaurants sit in strip malls along Frederick Road and Shady Grove Road: plan by car, not on foot.
  • Summer heat and humidity in Jul–Aug; afternoon thunderstorms are common.
  • Prices are shown before sales tax; tipping 18–22% is expected at sit-down restaurants.

Emergency numbers

Police, fire, ambulance
911

Pocket card

One page · print or save as PDF

Fill in, then print or save as PDF

Stays in this browser only; nothing is sent anywhere.

GaithersburgGaithersburg

Pocket card · Voykit

My bed tonight

—

—

—

To this address, pleaseTo this address, please

Emergency

  • Police, fire, ambulance911

Embassy

No embassies in Gaithersburg; national embassies are in Washington, DC, about 25 min south.

My embassy: —

Fare anchors (2026 estimate)

  • MARC Gaithersburg → Washington Union Station: About $9 one way; journey time check.
  • RideOn bus, one ride: Fare check.

Say or show

  • Thank you — Thank you
  • Where is the Metro station? — Where is the Metro station?
  • Can I pay by card? — Can I pay by card?
  • To this address, please — To this address, please

English is the working language; Spanish is widely understood in shops and restaurants along Frederick Road.

Deep dive

What this guide covers so far, and its sources

Not a trip line yet

This is a basic guide: no airport-to-bed contract, walking clusters or day plans are published for Gaithersburg. Airport, fare and schedule details are unverified; check the operators before you fly.

What we know, and what is coming

On this page

  1. Best months: Apr–Jun, Sep–Oct · avoid Jul–Aug (hot and humid) · month by month →
  2. 4 airports and 3 areas to sleep in
  3. Weather: a 7-day forecast and monthly averages
  4. Cost per day in 3 bands
  5. 8 day-trips, door to door
  6. 4 things to watch out for, with emergency numbers

Coming as the guide grows

  1. Airport-to-bed contract for BWI, DCA and IAD: last MARC and Metrorail departures field-checked, taxi fallback, overnight rung.
  2. Walking clusters with rescue anchors: Olde Towne and the MARC station, Washingtonian Center, Shady Grove and Frederick Road.
  3. Place pages with verified hours (Community Museum, Seneca Creek State Park, Water Park at Bohrer Park) and eat pages with last orders.
  4. MARC weekend and midday gaps flagged as hostile arrival fixtures so gates A–D can go green.

Meanwhile

Back to United States

Sources