Weather in Tomales Bay, Marin County, United States in January

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Visiting Tomales Bay, Marin County, United States in January

The weather in January is marginally warmer than the previous month and temperatures continue to rise slightly into February. January has average maximum temperatures of 16°C (60°F) which is a little too chilly for sunbathing. The sunshine percentage is 55% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.4 hours of sunshine per day. It is not a good time for sunbathing in Tomales Bay.

January has total rainfall of 2.9cm (1.1inches) making it extremely dry with very few light showers and most days are rain free. There are just 2.7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between.

Sea temperatures are a cold 15°C (59°F). January is too cold for swimming in Tomales Bay for any length of time, unless you have a wetsuit.

The weather in January at Tomales Bay is generally mild, with occasional rain showers and partly cloudy skies. While it may not be ideal for sunbathing, it is still a great time for beach walks and exploring the nearby hiking trails. Swimming and water sports may not be recommended during this month due to cooler water temperatures and less predictable weather conditions. Consider visiting Tomales Bay in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for January.

Can you sunbathe in Tomales Bay in January?

No, January is not a good time for sunbathing in Tomales Bay.

January has average maximum temperatures of 16°C (60°F) which is a little too chilly for sunbathing. The sunshine percentage is 55% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.4 hours of sunshine per day. January has total rainfall of 2.9cm (1.1inches) making it extremely dry with very few light showers and most days are rain free. There are just 2.7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between.

More about January temperature and sunshine.

Can you swim in Tomales Bay in January?

No, January is too cold for swimming in Tomales Bay for any length of time, with the sea water at 15°C (59°F), unless you have a wetsuit.

More about January sea temperatures.

Is January a good time to holiday in Tomales Bay?

Probably not, January is not a good time for a holiday in Tomales Bay.

January has average maximum temperatures of 16°C (60°F) which is a little too chilly for sunbathing. The sunshine percentage is 55% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.4 hours of sunshine per day. January has total rainfall of 2.9cm (1.1inches) making it extremely dry with very few light showers and most days are rain free. There are just 2.7 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days and rainy days are few and far between. It is not a good time for sunbathing in Tomales Bay. Sea temperatures are a cold 15°C (59°F). January is too cold for swimming in Tomales Bay for any length of time, unless you have a wetsuit.

More about the January temperatures and sunshine.

Is Tomales Bay warm in January?

No, Tomales Bay is a little too chilly for sunbathing in January.

The average maximum temperature in Tomales Bay in January is 16°C (60°F). The average maximum temperature is 15°C (58°) in the previous month and 16°C (61°F) in the next month.

The average temperature in Tomales Bay in January is 8°C (46°F). The average temperature is 8°C (47°F) in the previous month and 10°C (49°F) in the next month.

More info about the January temperatures and sunshine.

How sunny is Tomales Bay in January?

The average day light hours per day in Tomales Bay in January are 9.8. The sunshine percentage is 55% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.4 hours of sunshine per day.

More about January sunshine.

Crowds in Tomales Bay in January

In January, the beach at Tomales Bay is relatively quiet, as the weather is colder and not ideal for beach activities. There are no significant public holidays or special events during this month that would attract large crowds.

Temperature in Tomales Bay in January

The weather in January is marginally warmer than the previous month and temperatures continue to rise slightly into February. The average maximum temperature in Tomales Bay in January is 16°C (60°F). The average maximum temperature is 15°C (58°F) in the previous month and 16°C (61°F) in the next month.

The average temperature in Tomales Bay in January is 8°C (46°F). The average temperature is 8°C (47°F) in the previous month and 10°C (49°F) in the next month.

The average minimum temperature in Tomales Bay in January is 1°C (34°F). The minimum temperature is 2°C (36°F) in the previous month and 4°C (38°F) in the next month.

Sunshine in Tomales Bay in January

The days in January are marginally longer than the previous month and the days continue to get slightly longer into February. January has marginally more hours of sunshine than the previous month and hours of sunshine continue to rise quickly into February. During January the average day light hours are 9.8 per day in Tomales Bay. The sunshine percentage is 55% making it quite sunny but with occasional periods of cloudy and overcast skies. There are 5.4 hours of sunshine per day.

The ultraviolet index in Tomales Bay in January is typically 2.4 during January. An ultraviolet index reading of 0 to 2 indicates low danger from the sun's UV rays for the average person. Most people will be able to spend several hours in the sun with out a problem, however unprotected skin risks burning in less than 1 hour. Wear sunglasses on bright days. Only those that burn easily will need to apply sunscreen. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Tomales Bay in January

The average sea water temperature in Tomales Bay in January is 15.2°C (59.4°F) which is cold for swimming, a full wet suit is required to spend any length of time in the sea.

Rainfall in Tomales Bay in January

January weather is noticeably drier than the previous month. January has far fewer days of rain than the previous month. The average total rainfall in Tomales Bay in January is 2.9cm (1.1inches) and on average there are 2.7 rainy days in January making it a very dry time to visit the beach.

Humidity in Tomales Bay in January

The maximum dew point (an indicator of humidity) in Tomales Bay in January is 7°C (45°F) which is a bit dry for some. The dew point is 9°C (48°F) in the previous month and 9°C (9°F) in the next month.

The average maximum relative humidity in Tomales Bay in January is typically 99.6%. The maximum relative humidity is 98.6% in the previous month and 98.5% in the next month.

The average relative humidity in Tomales Bay in January is typically 81.1%. The average relative humidity is 85.4% in the previous month and 81.7% in the next month.

Wind Speed in Tomales Bay in January

The average maximum wind speed in Tomales Bay in January is typically 18KM/H (11MPH). The average maximum wind speed is 18KM/H (11MPH) in the previous month and 21KM/H (13MPH) in the next month.

The average wind speed in Tomales Bay in January is typically 5KM/H (3MPH). The average wind speed is 5KM/H (3MPH) in the previous month and 7KM/H (4MPH) in the next month.

The average wind direction in Tomales Bay in January is from the South West.

Monthly Averages

Suggested Beaches in January

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Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.