# Mouatt Reef, United States: what it is and when to go

> Mouatt Reef is a reef in United States (Friday Harbor). Interests: Beaches and Diving. The best time to visit is June to September. In June there are 15 h 55 of daylight, and in December, 8 h 05. It has an article in one Wikipedia, 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/mouatt-reef/
- Reviewed on: 2026-10-08
- Language: en

## In a nutshell

- **What it is:** Reef · Beaches, Diving
- **Where:** United States
- **Best time:** June to September.
- **Nearest airport:** SFO San Francisco, 1,233 km as the crow flies
- **Coordinates:** 48.68458, -123.04636

## What it is and where

Mouatt Reef is a reef in United States (Friday Harbor). It has an article in one Wikipedia, so it is not one of the busiest places in United States: one to enjoy at a calmer pace.

It is in [Friday Harbor](https://kokai.app/en/paises/america/estados-unidos/friday-harbor/), where this site lists 8 more places to see, 12 km from the centre.

Its coordinates are 48.68458, -123.04636; the nearest main airport is San Francisco International Airport (SFO, San Francisco), 1,233 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=48.684578%2C-123.046361)
- [Directions](https://www.google.com/maps/dir/?api=1&destination=48.684578%2C-123.046361)

It is one of the [Beaches](https://kokai.app/en/paises/america/estados-unidos/playa/) and [Diving](https://kokai.app/en/paises/america/estados-unidos/submarinismo/) 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 Mouatt Reef is **June to September**.

| Mes | Época | Hours of daylight |
| --- | --- | --- |
| January | Better not | 8 h 30 |
| February | Better not | 9 h 55 |
| March | Better not | 11 h 34 |
| April | Possible | 13 h 27 |
| May | Possible | 15 h 02 |
| June | Best time | 15 h 55 |
| July | Best time | 15 h 33 |
| August | Best time | 14 h 10 |
| September | Best time | 12 h 20 |
| October | Possible | 10 h 31 |
| November | Better not | 8 h 54 |
| December | Better not | 8 h 05 |

In June there are 15 h 55 of daylight, and in December, 8 h 05. 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.

| What you come for | Best time | Possible |
| --- | --- | --- |
| Beaches | June to September | April to May and October |
| Diving | June to September | April to May and October |

It is not the same trip whatever you come for: Mouatt Reef has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you.

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

- [Massacre Bay](https://kokai.app/en/paises/america/estados-unidos/massacre-bay/): Bay in Washington · 7.3 km
- [Jones Island State Park](https://kokai.app/en/paises/america/estados-unidos/jones-island-marine-state-park/): Park coterminous with Jones Island, one of the San Juan Islands in San Juan County, Washington, USA · 7.6 km
- [Island Hoppin' Brewery](https://kokai.app/en/paises/america/estados-unidos/island-hoppin-brewery/): Brewery · 9.9 km
- [San Juan Island Distillery](https://kokai.app/en/paises/america/estados-unidos/san-juan-island-distillery/): Distillery · 12 km
- [Patos Island Light](https://kokai.app/en/paises/america/estados-unidos/patos-island-light/): Lighthouse on Patos Island in Washington, United States · 13 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: Beaches

- [Coney Island](https://kokai.app/en/paises/america/estados-unidos/coney-island-beach/): coastal neighborhood in Brooklyn, New York City, New York, USA
- [Waimānalo Beach, Hawaii](https://kokai.app/en/paises/america/estados-unidos/waimanalo-beach/)
- [Maro Reef](https://kokai.app/en/paises/america/estados-unidos/maro-reef/): shoal in Honolulu County, Hawaii, United States
- [Glass Beach](https://kokai.app/en/paises/america/estados-unidos/glass-beach/): beach in northern California, USA
- [Waipiʻo Valley](https://kokai.app/en/paises/america/estados-unidos/waipio-beach/): valley on Hawaii Island, Hawaii
- [Baker Beach](https://kokai.app/en/paises/america/estados-unidos/baker-beach-clothing-optional-area/): beach on the peninsula of San Francisco, California, United States

Every United States place under Beaches, each with its season, is on [its page](https://kokai.app/en/paises/america/estados-unidos/playa/).

## Frequently asked questions

### What is Mouatt Reef?

It is a reef in United States. It has an article in one Wikipedia, 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 Mouatt Reef?

June to September. In June there are 15 h 55 of daylight, and in December, 8 h 05.

### How do you get to Mouatt Reef?

The nearest main airport is San Francisco International Airport (SFO), 1,233 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=48.684578%2C-123.046361) 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 [Massacre Bay](https://kokai.app/en/paises/america/estados-unidos/massacre-bay/), [Jones Island State Park](https://kokai.app/en/paises/america/estados-unidos/jones-island-marine-state-park/), [Island Hoppin' Brewery](https://kokai.app/en/paises/america/estados-unidos/island-hoppin-brewery/). The rest is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/).

Data from [OpenStreetMap](https://www.openstreetmap.org/way/1198854415), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q49619403), CC0. Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).