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Best time to visit Mendocino, CA, USA

Our verdict

The best time to visit Mendocino is September-October

If you’re looking to travel to Mendocino for your next trip but aren’t sure when to go and when to avoid, this article is all you’ll need. The best time to visit Mendocino is September-October due to the excellent all-round weather conditions, and it’s also not during the height of peak travel periods, so it’s not likely to be as busy.

In the height of summer, temperatures in Mendocino can reach a maximum of 23℃ (73℉). The weather in the winter, especially around February, can reach a minimum of 5℃ (41℉).

The sun stays up the longest in Mendocino in August, so you’ll get the most out of your daytime activities if you visit around this time. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of Mendocino in December. Head over there in June instead if you want to increase your chances of not being rained on.

Find out everything you need to know about when to visit Mendocino below, including detailed information about the weather and tools to help you find the best prices and book your trip.

Warmest month

July

Least rainfall

June

Most daylight

August

Mendocino seasons

Before you continue, it’s important to know when the seasons are in Mendocino as they might be different to yours depending on where in the world you’re travelling from. Mendocino is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in Mendocino

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in Mendocino for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

Mendocino climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in Mendocino for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

Mendocino in January

  • Average temperature: 10℃ (50℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 8℃ (47℉)
  • Average humidity: 77%
  • Average sunny days: 20 days
  • Average rainfall: 42mm (2") over 10 days
20 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Mendocino in January, make sure you pack a warm jacket or coat.


Mendocino in February

  • Average temperature: 10℃ (50℉)
  • Average high temperature: 12℃ (54℉)
  • Average low temperature: 8℃ (46℉)
  • Average humidity: 78%
  • Average sunny days: 20 days
  • Average rainfall: 43mm (2") over 8 days
20 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to Mendocino in February, make sure you pack a warm jacket or coat.


Mendocino in March

  • Average temperature: 10℃ (51℉)
  • Average high temperature: 13℃ (55℉)
  • Average low temperature: 8℃ (46℉)
  • Average humidity: 80%
  • Average sunny days: 18 days
  • Average rainfall: 34mm (1") over 11 days
18 days
of pure sunshine
11 days
of showers or rain

What to pack: If you’re heading to Mendocino in March, make sure you pack a warm jacket or coat.


Mendocino in April

  • Average temperature: 11℃ (52℉)
  • Average high temperature: 14℃ (57℉)
  • Average low temperature: 9℃ (47℉)
  • Average humidity: 78%
  • Average sunny days: 23 days
  • Average rainfall: 14mm (1") over 6 days
23 days
of pure sunshine
6 days
of showers or rain

What to pack: If you’re heading to Mendocino in April, make sure you pack a warm jacket or coat.


Mendocino in May

  • Average temperature: 13℃ (55℉)
  • Average high temperature: 15℃ (60℉)
  • Average low temperature: 10℃ (50℉)
  • Average humidity: 80%
  • Average sunny days: 26 days
  • Average rainfall: 15mm (1") over 4 days
26 days
of pure sunshine
4 days
of showers or rain

What to pack: If you’re heading to Mendocino in May, make sure you pack a warm jacket or coat.


Mendocino in June

  • Average temperature: 15℃ (59℉)
  • Average high temperature: 18℃ (64℉)
  • Average low temperature: 12℃ (53℉)
  • Average humidity: 78%
  • Average sunny days: 27 days
  • Average rainfall: 2mm (0") over 2 days
27 days
of pure sunshine
2 days
of showers or rain

What to pack: If you’re heading to Mendocino in June, make sure you pack a warm jacket or coat.


Mendocino in July

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 19℃ (67℉)
  • Average low temperature: 13℃ (55℉)
  • Average humidity: 79%
  • Average sunny days: 28 days
  • Average rainfall: 2mm (0") over 2 days
28 days
of pure sunshine
2 days
of showers or rain

What to pack: If you’re heading to Mendocino in July, make sure you pack a light jumper or hoodie.


Mendocino in August

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 20℃ (67℉)
  • Average low temperature: 13℃ (55℉)
  • Average humidity: 80%
  • Average sunny days: 28 days
  • Average rainfall: 2mm (0") over 2 days
28 days
of pure sunshine
2 days
of showers or rain

What to pack: If you’re heading to Mendocino in August, make sure you pack a light jumper or hoodie.


Mendocino in September

  • Average temperature: 16℃ (61℉)
  • Average high temperature: 20℃ (67℉)
  • Average low temperature: 13℃ (55℉)
  • Average humidity: 76%
  • Average sunny days: 28 days
  • Average rainfall: 4mm (0") over 2 days
28 days
of pure sunshine
2 days
of showers or rain

What to pack: If you’re heading to Mendocino in September, make sure you pack a light jumper or hoodie.

Mendocino in October

  • Average temperature: 14℃ (58℉)
  • Average high temperature: 17℃ (63℉)
  • Average low temperature: 12℃ (53℉)
  • Average humidity: 75%
  • Average sunny days: 26 days
  • Average rainfall: 14mm (1") over 4 days
26 days
of pure sunshine
4 days
of showers or rain

What to pack: If you’re heading to Mendocino in October, make sure you pack a warm jacket or coat.


Mendocino in November

  • Average temperature: 12℃ (53℉)
  • Average high temperature: 14℃ (58℉)
  • Average low temperature: 9℃ (49℉)
  • Average humidity: 76%
  • Average sunny days: 22 days
  • Average rainfall: 25mm (1") over 7 days
22 days
of pure sunshine
7 days
of showers or rain

What to pack: If you’re heading to Mendocino in November, make sure you pack a warm jacket or coat.


Mendocino in December

  • Average temperature: 10℃ (50℉)
  • Average high temperature: 12℃ (54℉)
  • Average low temperature: 8℃ (47℉)
  • Average humidity: 76%
  • Average sunny days: 20 days
  • Average rainfall: 45mm (2") over 10 days
20 days
of pure sunshine
10 days
of showers or rain

What to pack: If you’re heading to Mendocino in December, make sure you pack a warm jacket or coat.


Top FAQs

The hottest month of the year in Mendocino is usually July, where temperatures tend to rise to around 20℃ (67℉) in the middle of the day or early afternoon.
The month with the least amount of rain in Mendocino is generally around June. The dry season often coincides with cooler weather, so you should check the temperatures in June first to make sure it’s still a good time to go.
The rainiest time of year in Mendocino is generally around December, although the wetter season can sometimes extend a few months either side of December too.
If you want to get the most out of your time visiting Mendocino, or if you're just afraid of the dark, the days in August are usually the longest between sunrise and sunset.

Mendocino map