Old Faithful Geyser of California — a hot spring in Napa County, California — is a lesser-known subject for landscape photographers. The nearest town is Calistoga, about 2.8 km (1.7 mi) away (Old Faithful Geyser of California lies NW of town).
Wikidata describes it as: “spring in Napa County, California, United States of America”.
Sunrise & sunset directions
At Old Faithful Geyser of California the sunrise point swings a long way through the year: about 59° (ENE) at the June solstice and 120° (ESE) in late December. Sunset moves from 302° (WNW) in June to 240° (WSW) in December, and the midday sun climbs to 75° in summer but only 28° in winter.
| Date | Sunrise | Azimuth | Sunset | Azimuth | Noon sun | Daylight |
|---|---|---|---|---|---|---|
| March equinox (Mar 20) | 7:15 AM | 90° E | 7:23 PM | 271° W | 51° | 12h 08m |
| June solstice (Jun 21) | 5:47 AM | 59° ENE | 8:39 PM | 302° WNW | 75° | 14h 52m |
| September equinox (Sep 22) | 6:59 AM | 89° E | 7:09 PM | 271° W | 52° | 12h 10m |
| December solstice (Dec 21) | 7:25 AM | 120° ESE | 4:53 PM | 240° WSW | 28° | 9h 28m |
Azimuth is measured clockwise from true north (90° = east, 270° = west). Computed for 2026; values change by less than a degree from year to year.
Golden hour & blue hour by month
Steam is most visible on cold mornings; backlight from a low sun makes rising steam glow.
| Month (15th) | Blue hour starts | Sunrise | Golden hour ends | Golden hour starts | Sunset | Blue hour ends | Daylight |
|---|---|---|---|---|---|---|---|
| January | 6:58 AM | 7:27 AM | 8:08 AM | 4:33 PM | 5:14 PM | 5:43 PM | 9h 46m |
| February | 6:35 AM | 7:02 AM | 7:39 AM | 5:12 PM | 5:49 PM | 6:16 PM | 10h 47m |
| March | 6:56 AM | 7:22 AM | 7:58 AM | 6:43 PM | 7:18 PM | 7:44 PM | 11h 55m |
| April | 6:07 AM | 6:35 AM | 7:10 AM | 7:12 PM | 7:47 PM | 8:15 PM | 13h 12m |
| May | 5:30 AM | 5:59 AM | 6:37 AM | 7:38 PM | 8:16 PM | 8:46 PM | 14h 16m |
| June | 5:14 AM | 5:46 AM | 6:26 AM | 7:58 PM | 8:37 PM | 9:09 PM | 14h 51m |
| July | 5:28 AM | 5:59 AM | 6:38 AM | 7:56 PM | 8:35 PM | 9:06 PM | 14h 36m |
| August | 5:57 AM | 6:25 AM | 7:02 AM | 7:30 PM | 8:06 PM | 8:35 PM | 13h 41m |
| September | 6:26 AM | 6:53 AM | 7:28 AM | 6:45 PM | 7:20 PM | 7:47 PM | 12h 27m |
| October | 6:53 AM | 7:20 AM | 7:56 AM | 5:58 PM | 6:33 PM | 7:00 PM | 11h 13m |
| November | 6:25 AM | 6:53 AM | 7:32 AM | 4:19 PM | 4:59 PM | 5:27 PM | 10h 05m |
| December | 6:52 AM | 7:22 AM | 8:04 AM | 4:09 PM | 4:51 PM | 5:21 PM | 9h 29m |
Local time (America/Los Angeles), including daylight saving time. Golden hour runs from about −4° to +6° solar altitude, so the morning golden hour begins during blue hour, before sunrise.
Milky Way & night sky
From Old Faithful Geyser of California, the Milky Way core is visible in a dark sky from March through September. June gives the longest window (about 5.2 hours on a moonless night), and the core peaks around 23° above the southern horizon. Our light-pollution model puts the sky at about Bortle 5 (suburban sky), so expect visible sky glow; drive away from towns for better results.
| Month | Core visible (15th) | Hours | Max altitude | Direction |
|---|---|---|---|---|
| January | Below 10° in darkness | — | -2° | — |
| February | 5:07 AM – 5:27 AM | 0.3 | 13° | SE → SE |
| March | 4:26 AM – 5:46 AM | 1.3 | 19° | SE → SSE |
| April | 2:21 AM – 4:51 AM | 2.5 | 22° | SE → S |
| May | 12:22 AM – 4:02 AM | 3.7 | 23° | SE → S |
| June | 10:34 PM – 3:44 AM | 5.2 | 23° | SE → SSW |
| July | 10:27 PM – 2:17 AM | 3.8 | 23° | SSE → SW |
| August | 9:44 PM – 12:14 AM | 2.5 | 22° | S → SW |
| September | 8:50 PM – 10:20 PM | 1.5 | 19° | SSW → SW |
| October | 8:01 PM – 8:21 PM | 0.3 | 13° | SW → SW |
| November | Below 10° in darkness | — | 0° | — |
| December | Below 10° in darkness | — | -19° | — |
Window when the galactic core is at least 10° high during astronomical darkness on the 15th of each month. Pick nights within a few days of the new moon. Plan exact nights with the Milky Way planner.
Estimated sky darkness: 5 Bortle 5 — Suburban sky. The Milky Way is weak near the horizon and washed out overhead; long exposures pick up a sky glow. Modeled zenith brightness ≈ 19.93 mag/arcsec².
Weather & best season
Long-term NASA satellite data for this area show July as the clearest month (about 19% average cloud cover) and December as the cloudiest (57%). July is the warmest month and January the coldest, which matters for gear, snow access and how long batteries last at night.
Average cloud cover (%)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| High °F | 73 | 75 | 76 | 87 | 100 | 106 | 109 | 107 | 112 | 103 | 87 | 71 |
| Low °F | 25 | 27 | 28 | 30 | 35 | 42 | 48 | 48 | 45 | 37 | 27 | 24 |
| Precip. (in) | 4.7 | 5.1 | 3.7 | 1.9 | 0.8 | 0.2 | 0.0 | 0.0 | 0.1 | 1.3 | 2.9 | 6.2 |
Monthly climatology for the surrounding 1° grid cell from NASA POWER (MERRA-2). Mountain sites can be colder and cloudier than the cell average.
Photography tips for this hot spring
- Respect bathers' privacy: ask before including people at soaking pools.
- Wind direction determines where steam drifts; shoot from the upwind side to see the pool.
- Condensation forms quickly on lenses; let gear acclimate and carry a cloth.
- Keep to boardwalks and marked paths — crusts around thermal features can be thin and the water dangerously hot.
- A polarizer brings out the colors of mineral terraces and microbial mats.
- Check road and trail conditions with the managing agency before you go.
Season: Winter gives the most dramatic steam; some primitive springs are only accessible in summer.
Suggested gear: Circular polarizer, Lens cloth, Telephoto for distant pools. Work out exposures with the depth of field, ND filter and NPF rule calculators.
Nearby photo spots
Other locations within 25 km of Old Faithful Geyser of California, closest first.
Natural Arch
State Park
Mountain Peak
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Waterfall
Mountain Peak
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State ParkFAQ
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Sources
Location data: Wikidata. Sun, moon and Milky Way times are computed by LWPhoto Atlas for 2026. Climate: NASA POWER. Sky darkness is a population-based estimate (Walker's law), not a measurement. See data sources & licenses.