# Suisun Bay, United States: what it is and when to go > Suisun Bay is a bay on the California coast of the United States (Vallejo, California). Interests: Nature. The best time to visit is April to October. In June there are 14 h 38 of daylight, and in December, 9 h 22. It has articles in 15 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip. - Address: https://kokai.app/en/paises/america/estados-unidos/suisun-bay/ - Reviewed on: 2026-10-08 - Language: en ## In a nutshell - **What it is:** Bay on the California coast of the United States · Nature - **Where:** United States - **Best time:** April to October. - **Nearest airport:** SFO San Francisco, 61 km as the crow flies - **Coordinates:** 38.07325, -121.98935 ## What it is and where Suisun Bay is a bay on the California coast of the United States (Vallejo, California). It has articles in 15 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. It is in [Vallejo, California](https://kokai.app/en/paises/america/estados-unidos/vallejo/), where this site lists 30 more places to see, 24 km from the centre. Its coordinates are 38.07325, -121.98935; the nearest main airport is San Francisco International Airport (SFO, San Francisco), 61 km as the crow flies. How to get around United States (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=38.073246%2C-121.989355) - [Directions](https://www.google.com/maps/dir/?api=1&destination=38.073246%2C-121.989355) It is one of the [Nature](https://kokai.app/en/paises/america/estados-unidos/naturaleza/) places in United States. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap. ## When to go The best time to visit Suisun Bay is **April to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 38 | | February | Possible | 10 h 35 | | March | Possible | 11 h 42 | | April | Best time | 13 h | | May | Best time | 14 h 04 | | June | Best time | 14 h 38 | | July | Best time | 14 h 24 | | August | Best time | 13 h 29 | | September | Best time | 12 h 14 | | October | Best time | 10 h 59 | | November | Possible | 9 h 54 | | December | Possible | 9 h 22 | In June there are 14 h 38 of daylight, and in December, 9 h 22. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather. When to go to United States in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#cuando-ir). ## Before you go to United States To enter United States there are 9 things to sort out before you leave, starting with “Book national parks and cars in advance”: they are all, with their deadlines, in [the United States checklist](https://kokai.app/en/paises/america/estados-unidos/#antes-de-salir). Currency: US dollar (USD); plugs: Type A and B · 120 V · 60 Hz (you need an adapter, and check your devices' voltage); emergencies: 911 for everything. In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it. ## What is nearby - [Port Chicago Naval Magazine National Memorial](https://kokai.app/en/paises/america/estados-unidos/port-chicago-naval-magazine-national-memorial/): US Navy memorial to the Port Chicago disaster · 4.0 km - [Grizzly Bay](https://kokai.app/en/paises/america/estados-unidos/grizzly-bay/): Baylet of San Francisco Bay in Solano County, California · 5.7 km - [Don Francisco Galindo House](https://kokai.app/en/paises/america/estados-unidos/galindo-house-and-gardens/): Historic House museum in Concord, CA · 12 km - [Six Flags Hurricane Harbor Concord](https://kokai.app/en/paises/america/estados-unidos/hurricane-harbor/): Water park in Concord, California · 12 km - [Del Cielo Brewing Company](https://kokai.app/en/paises/america/estados-unidos/del-cielo-brewing-company/): Brewery · 14 km Distances are as the crow flies. Everything else is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/). ## More in United States: Nature - [Niagara Falls](https://kokai.app/en/paises/america/estados-unidos/niagara-falls-2/): three waterfalls that straddle the international border between Canada and the United States - [Grand Canyon](https://kokai.app/en/paises/america/estados-unidos/grand-canyon-2/): steep-sided canyon carved by the Colorado River in Arizona, United States - [Yellowstone National Park](https://kokai.app/en/paises/america/estados-unidos/parque-nacional-de-yellowstone/): first national park in the world, located in Wyoming, Montana, and Idaho in the United States - [Denali](https://kokai.app/en/paises/america/estados-unidos/monte-denali/): highest mountain in North America, located in Alaska - [Mount Rushmore](https://kokai.app/en/paises/america/estados-unidos/mount-rushmore/): mountain in South Dakota featuring a sculpture of four US presidents - [Mauna Kea](https://kokai.app/en/paises/america/estados-unidos/mauna-kea/): Hawaiian volcano Every United States place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/america/estados-unidos/naturaleza/). ## Frequently asked questions ### What is Suisun Bay? It is a bay on the California coast of the United States. It has articles in 15 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. ### When is the best time to visit Suisun Bay? April to October. In June there are 14 h 38 of daylight, and in December, 9 h 22. ### How do you get to Suisun Bay? The nearest main airport is San Francisco International Airport (SFO), 61 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=38.073246%2C-121.989355) opens the route on the map, and how to get around United States is explained in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the United States map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby. ### What else is around here? Nearby you have [Port Chicago Naval Magazine National Memorial](https://kokai.app/en/paises/america/estados-unidos/port-chicago-naval-magazine-national-memorial/), [Grizzly Bay](https://kokai.app/en/paises/america/estados-unidos/grizzly-bay/), [Don Francisco Galindo House](https://kokai.app/en/paises/america/estados-unidos/galindo-house-and-gardens/). The rest is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/). Data from [OpenStreetMap](https://www.openstreetmap.org/relation/9451750), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q644154), CC0. More about Suisun Bay on [Wikipedia](https://en.wikipedia.org/wiki/Suisun_Bay). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).