Major city · United States
Lick Observatory
Go as a half-day drive from San Jose: 1–2 h up CA-130, tour the main building, back before dark. Skip if you get car-sick or hate one-lane roads.
Lick Observatory sits at the top of Mount Hamilton, about 4,000 ft up and roughly 30 km east of San Jose. There is no lodging and no village: it is a working research site with a small resident community, a public main building and two historic telescopes. You come for the drive, the ridge views and the instruments, then you leave. Almost everyone sleeps in San Jose or camps at Joseph D. Grant County Park below.
More ways in
Local time, weather, currency, airports
- Weather
- see forecast
- Currency
- USD
- Best months
- Apr–Jun, Sep–Oct
- avoid Jul–Aug (inland heat), Dec–Feb (ice and fog on CA-130)
- Airports
- SJC · SFO
- Nights
- 0–1
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.
What is in this basic guide9 covered · 4 not yet ▾
In this guide
Not in this guide yet
- Walking areas with bag rules
- Day plans checked against opening hours
- Airport-to-bed timings and the last safe connection
- Field-checked times and prices
Official sites
Emergency numbers for Lick Observatory911 ▾
- Police, fire, ambulance911
- California Highway Patrol (road conditions)511
- Poison control1-800-222-1222
Tap a number to call from your phone. These are the numbers listed in this guide; a row marked check has not been verified.
EssentialsQuick answers and what things cost
Essentials
Quick answers and what things cost
Quick answers
The questions people ask first about Lick Observatory, one line each. Tap a card for the full answer.
- Cash or card?Currency is the US dollar (USD, $).United States-wide
- SIM or eSIMAT&T, Verizon and T-Mobile cover the country; prepaid SIMs at their stores and Walmart/Target (passport required), or an eSIM before you fly.United States-wide
- Tap waterTap water is drinkable nearly everywhere; boil or treat water from streams in parks.United States-wide
- TippingSit-down restaurant: 18–22% of the pre-tax bill.United States-wide
- Plugs & powerSockets A/B. US/Canada (A/B): fits · UK/Ireland (G): adapter · Australia/NZ (I): adapter. 120 V: UK and AU 230 V-only devices need a converter; most chargers are dual-voltage.United States-wide
- SafetyThe site is safe and staffed; the risk is the road.
Show all 12 answers
- RestroomsFree public toilets are scarce in big cities; use cafés, department stores, libraries, stations.United States-wide
- Emergency numbers911 police, fire, ambulance · 511 California Highway Patrol (road conditions) · 1-800-222-1222 Poison control
- Sundays & holidaysFederal holidays close offices, banks and post offices; national parks stay open.United States-wide
- Your embassyFind your embassy's 24-hour line before you fly.
- AirportSJC San Jose Mineta International (Closest gateway; about 1 h to the base of Mount Hamilton, then the climb).
- Getting aroundYou need a car.
Cost cheat-sheet
Typical prices for the everyday things, as ranges. Your currency is shown next to the local price.
- CoffeeCoffee in San Jose$4–7
- Sit-down mealSit-down dinner, mid-rangeBefore tax and an 18–22% tip.$25–45
- Street or quick mealDeli sandwich or burrito$12–18
- Budget bedHostel bed in San Jose, a night, per personUS$45
- Mid-range bedMid-range hotel double, San Jose, a night, per roomUS$180
- High-end bedMid-range hotel double, San Jose, a night, per roomUS$320
A day, not counting the bed: Budget US$70 · Mid US$150 · High US$300
Prices in local money; change the currency in the header to see yours next to them. Every price and the budget calculator →
DecideWhat it is known for, and when the weather works
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.
- Airports
- SJC San Jose Mineta International (Closest gateway; about 1 h to the base of Mount Hamilton, then the climb) · SFO San Francisco International (About 1 h 30 min to San Jose before the mountain road)
Best months at a glance
From the guide's best and avoid lists
Jan
Avoid
10°C (50°F)50°F (10°C)
Feb
Avoid
11°C (52°F)52°F (11°C)
Mar
not flagged
13°C (55°F)55°F (13°C)
Apr
Best
16°C (61°F)61°F (16°C)
May
Best
20°C (68°F)68°F (20°C)
Jun
Best
25°C (77°F)77°F (25°C)
Jul
Avoid
29°C (84°F)84°F (29°C)
Aug
Avoid
29°C (84°F)84°F (29°C)
Sep
Best
27°C (81°F)81°F (27°C)
Oct
Best
22°C (72°F)72°F (22°C)
Nov
not flagged
15°C (59°F)59°F (15°C)
Dec
Avoid
10°C (50°F)50°F (10°C)
Best: Apr–Jun, Sep–Oct. Avoid: Jul–Aug, Dec–Feb. Month by month →
Warmest Jul (29°C (84°F)84°F (29°C)), coolest Jan (2°C (36°F)36°F (2°C) low), wettest Jan (10 rain days), driest Jul (0). Averages, not a forecast.
Weather and climate
Lick Observatory: 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
10°C (50°F)50°F (10°C)
2°C (36°F)36°F (2°C)
10 rd
Feb
11°C (52°F)52°F (11°C)
3°C (37°F)37°F (3°C)
9 rd
Mar
13°C (55°F)55°F (13°C)
4°C (39°F)39°F (4°C)
9 rd
Apr
16°C (61°F)61°F (16°C)
5°C (41°F)41°F (5°C)
5 rd
May
20°C (68°F)68°F (20°C)
8°C (46°F)46°F (8°C)
3 rd
Jun
25°C (77°F)77°F (25°C)
11°C (52°F)52°F (11°C)
1 rd
Jul
29°C (84°F)84°F (29°C)
14°C (57°F)57°F (14°C)
0 rd
Aug
29°C (84°F)84°F (29°C)
14°C (57°F)57°F (14°C)
0 rd
Sep
27°C (81°F)81°F (27°C)
13°C (55°F)55°F (13°C)
1 rd
Oct
22°C (72°F)72°F (22°C)
10°C (50°F)50°F (10°C)
3 rd
Nov
15°C (59°F)59°F (15°C)
6°C (43°F)43°F (6°C)
7 rd
Dec
10°C (50°F)50°F (10°C)
2°C (36°F)36°F (2°C)
9 rd
High / low, both scales · rd = rain days
Arrive & moveAirports are listed under At a glance; this is how to move once you are in
Arrive & move
Airports are listed under At a glance; this is how to move once you are in
Getting around
You need a car. CA-130 (Mount Hamilton Road) is two lanes with no shoulder and no bike lane, and it turns hard and steep near the top. Once at the summit everything is walkable — the far end of the site is under a mile from the main building. There is no bus and no rideshare worth relying on up here.
See & doDay-trips, door to door
See & do
Day-trips, door to door
Day-trips
Door to door: 45–75 min
CA-130 west down the mountain, then city streets
Where you sleep, eat and resupply; museums and downtown are a full extra day.
Joseph D. Grant County Park
goDoor to door: 20–30 min
CA-130 west to the park entrance
Camping and trails on the lower slopes; the closest overnight to the summit.
Door to door: 1 h 15 min–1 h 45 min
CA-130 to San Jose, then US-101 north
Fine as an evening base, but the drive up the mountain is long both ways.
Door to door: 1 h–1 h 30 min
CA-130 to San Jose, then local freeways
Hotel cluster with easy freeway access for an early start.
Door to door: 1 h 15 min–1 h 45 min
CA-130 to San Jose, then CA-237 or US-101
Good base for the wider south bay, not for a quick observatory run.
Door to door: 1 h 30 min–2 h
CA-130 to San Jose, then US-101 south
Too far south to make the mountain drive pleasant.
Eat & sleepWhich area to sleep in
Eat & sleep
Which area to sleep in
Where to sleep
Areas, not hotels: pick the one that fits your arrival time and plans.
San Jose (downtown or airport)
The practical base: hotels at every price, 45–75 min from the summit. See the San Jose guide.
Joseph D. Grant County Park
Camping on the west approach to Mount Hamilton; the only bed-adjacent option near the peak.
Santa Clara / Sunnyvale / Cupertino
Chain hotels and free parking if you want to start the drive early from the south bay.
PracticalWhat a day costs, what to watch out for, and the pocket card
Practical
What a day costs, what to watch out for, and the pocket card
Cost per day
- Budget
- $60–110 excl. bed
- Mid
- $120–200 excl. bed
- High
- $250+ excl. bed
Trip budget
| Mid-range hotel double, San Jose1 × 1 night × US$180 | US$180 |
| Food, local transport, entries2 × 1 day × US$150 | US$300 |
| Rental car, one day1 × US$75 · check | US$75 |
| Fuel, San Jose return to the summit1 × US$15 · check | US$15 |
| eSIM, about a week of data2 × US$15 | US$30 |
| Buffer 10%Price creep, a taxi you did not plan, one splurge | US$60 |
| Trip total≈ US$330 per person per day, bed included | US$660 |
2026 estimate in US dollars; prices before sales tax. Your choices stay in this browser.
Prices of common things
| Coffee in San Jose | $4–7 |
| Deli sandwich or burrito | $12–18 |
| Sit-down dinner, mid-rangeBefore tax and an 18–22% tip. | $25–45 |
| Rental car, one daycheck | $45–130 |
| Fuel, San Jose return to the summitcheck | $12–18 |
| Camping, Joseph D. Grant County Parkcheck | $30–45 per site |
2026 estimate; check locally.
Watch out
Safety
- CA-130 is narrow, unlit and has long drop-offs: drive it in daylight, not after a night program.
- No fuel, no food and no lodging at the summit — fill up and eat in San Jose.
- Cell signal is patchy on the mountain; download your map before you climb.
- Winter brings ice, snow and fog to the upper road: check conditions before setting out.
- Public access is limited to the main building and grounds; research areas are closed.
Emergency numbers
- Police, fire, ambulance
- 911
- California Highway Patrol (road conditions)
- 511
- Poison control
- 1-800-222-1222
Pocket card
Fill in, then print or save as PDF
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Lick ObservatoryLick Observatory
Pocket card · Voykit
My bed tonight
—
—
—
To this address, pleaseTo this address, please
Emergency
- Police, fire, ambulance911
- Road conditions (Caltrans/CHP)511
- Poison control1-800-222-1222
Embassy
No consulates on the mountain; national consulates are in San Francisco, and embassies are in Washington, DC.
My embassy: —
Fare anchors (2026 estimate)
- Rental car, one day: $45–130 (check)
- Fuel, San Jose return to the summit: $12–18 (check)
- Camping, Joseph D. Grant County Park: $30–45 per site (check)
Say or show
- Where is the entrance? — Where is the entrance?
- Is the road open? — Is the road open?
- How long is the drive up? — How long is the drive up?
- Is there a tour today? — Is there a tour today?
- Where is the nearest gas station? — Where is the nearest gas station?
- Can I park here? — Can I park here?
No lodging, food or fuel at the summit: treat San Jose as your base.
Deep diveWhat this guide covers so far, and its sources
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 Lick Observatory. Airport, fare and schedule details are unverified; check the operators before you fly.
What we know, and what is coming
On this page
- Best months: Apr–Jun, Sep–Oct · avoid Jul–Aug (inland heat), Dec–Feb (ice and fog on CA-130) · month by month →
- 2 airports and 3 areas to sleep in
- Weather: a 7-day forecast and monthly averages
- Cost per day in 3 bands
- 6 day-trips, door to door
- 5 things to watch out for, with emergency numbers
Coming as the guide grows
- Field-check CA-130 drive times and the summit gate status, then publish a go / caution / skip line per season.
- Add a public-program calendar page with booking cutoffs and a no-ticket fallback plan.
- Build a San Jose base page with hotel bands and a 06:00 departure fixture.
- Add a winter road-closure fixture so the page can flip to skip on ice days.