, on Humboldt Bay, and a short distance from the border with Oregon.
The latitude is not very low (we are at the 40th parallel), so weather fronts from the ocean arrive in the cold half of the year.
, the rains are abundant. The temperature can drop a few degrees below freezing on the
. Snow is very rare.
The relatively sunniest season is spring, because in summer, even if it is the driest season, morning fogs can form.
flowing in the ocean. Besides, as mentioned, the summer is sunny, although there may be morning fogs. From May to October, the temperature can reach 28/30 °C (82/86 °F), generally for a day or two, when the wind blows from the desert, but given the distance, this happens very rarely.
, where the tallest tree in the world, called Hyperion (whose exact location is secret though) is located.
The best time to visit Eureka is from June to September, as it is the mildest and driest of the year.
. Here are the average temperatures.
January is generally a mild month. The average temperature is of
9.1 °C, with a minimum of
4.7 °C and a maximum of
13.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-5 °C in January 2007.
On the warmest days of the month, the temperature usually reaches around
20 °C. However, it reached
24 °C in January 2003.
Precipitation amounts to
190 mm, distributed over 18 days.
The day lasts on average 9 hours and 35 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
9.9 kph.
The average sea temperature is of
11.4 °C. Therefore, the sea is very cold for swimming.
February is generally a mild month. The average temperature is of
9.2 °C, with a minimum of
4.8 °C and a maximum of
13.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-3.9 °C in February 2011.
On the warmest days of the month, the temperature usually reaches around
20.5 °C. However, it reached
26.7 °C in February 2016.
Precipitation amounts to
165 mm, distributed over 18 days.
The day lasts on average 10 hours and 40 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
10.4 kph.
The average sea temperature is of
11.2 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
9.5 °C, with a minimum of
5.2 °C and a maximum of
13.7 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-2.2 °C in March 2008.
On the warmest days of the month, the temperature usually reaches around
19.5 °C. However, it reached
23 °C in March 2000.
Precipitation amounts to
160 mm, distributed over 18 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
11.1 kph.
The average sea temperature is of
11.2 °C. Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of
10.1 °C, with a minimum of
6 °C and a maximum of
14.3 °C.
On the coldest nights of the month, the temperature usually drops to around
0.5 °C. However, it dropped to
-2 °C in April 2009.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
28.3 °C in April 2014.
Precipitation amounts to
105 mm, distributed over 14 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 8.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
11.1 kph.
The average sea temperature is of
11.2 °C. Therefore, the sea is very cold for swimming.
May is generally a mild month. The average temperature is of
11.6 °C, with a minimum of
7.8 °C and a maximum of
15.4 °C.
On the coldest nights of the month, the temperature usually drops to around
3 °C. However, it dropped to
0 °C in May 2002.
On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
34.4 °C in May 2008.
Precipitation amounts to
55 mm, distributed over 11 days.
The day lasts on average 14 hours and 30 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
11.1 kph.
The average sea temperature is of
11.7 °C. Therefore, the sea is very cold for swimming.
June is generally a mild month. The average temperature is of
13.1 °C, with a minimum of
9.2 °C and a maximum of
16.9 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
1.7 °C in June 1991.
On the warmest days of the month, the temperature usually reaches around
22.5 °C. However, it reached
28.9 °C in June 2019.
Precipitation amounts to
25 mm, distributed over 6 days.
The day lasts on average 15 hours and 5 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 61% of the time.
The average humidity is 85%. Hence, the air is normally humid.
The average wind speed is of
11 kph.
The average sea temperature is of
12.4 °C. Therefore, the sea is very cold for swimming.
July is generally a mild month. The average temperature is of
14.1 °C, with a minimum of
10.7 °C and a maximum of
17.4 °C.
On the coldest nights of the month, the temperature usually drops to around
7.5 °C. However, it dropped to
5.5 °C in July 1993.
On the warmest days of the month, the temperature usually reaches around
21.5 °C. However, it reached
28.9 °C in July 2015.
Precipitation amounts to only
5 mm, distributed over 5 days.
The day lasts on average 14 hours and 40 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 88%. Hence, the air is normally humid.
The average wind speed is of
9.5 kph.
The average sea temperature is of
13 °C. Therefore, the sea is very cold for swimming.
August, the warmest month of the year, is generally a mild month. The average temperature is of
14.4 °C, with a minimum of
10.7 °C and a maximum of
18.1 °C.
On the coldest nights of the month, the temperature usually drops to around
7 °C. However, it dropped to
5 °C in August 2002.
On the warmest days of the month, the temperature usually reaches around
23.5 °C. However, it reached
30 °C in August 2008.
Precipitation amounts to only
5 mm, distributed over 6 days.
The day lasts on average 13 hours and 40 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 56% of the time.
The average humidity is 89%. Hence, the air is normally humid.
The average wind speed is of
8.5 kph.
The average sea temperature is of
13.7 °C. Therefore, the sea is very cold for swimming.
September is generally a mild month. The average temperature is of
13.8 °C, with a minimum of
9.2 °C and a maximum of
18.4 °C.
On the coldest nights of the month, the temperature usually drops to around
5 °C. However, it dropped to
2.7 °C in September 1993.
On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
35.6 °C in September 2017.
Precipitation amounts to
20 mm, distributed over 9 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 87%. Hence, the air is normally humid.
The average wind speed is of
7.9 kph.
The average sea temperature is of
13.9 °C. Therefore, the sea is very cold for swimming.
October is generally a mild month. The average temperature is of
12.4 °C, with a minimum of
7.2 °C and a maximum of
17.5 °C.
On the coldest nights of the month, the temperature usually drops to around
2 °C. However, it dropped to
-1.7 °C in October 2002.
On the warmest days of the month, the temperature usually reaches around
26.5 °C. However, it reached
33 °C in October 2003.
Precipitation amounts to
70 mm, distributed over 12 days.
The day lasts on average 11 hours and 5 minutes.
There are on average 5.5 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
8.1 kph.
The average sea temperature is of
13.3 °C. Therefore, the sea is very cold for swimming.
November is generally a mild month. The average temperature is of
10.3 °C, with a minimum of
5.6 °C and a maximum of
14.9 °C.
On the coldest nights of the month, the temperature usually drops to around
0 °C. However, it dropped to
-2.8 °C in November 2004.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
26.1 °C in November 2002.
Precipitation amounts to
145 mm, distributed over 17 days.
The day lasts on average 9 hours and 55 minutes.
There are on average 4.5 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 84%. Hence, the air is normally humid.
The average wind speed is of
8.9 kph.
The average sea temperature is of
12.8 °C. Therefore, the sea is very cold for swimming.
December, the coldest month of the year, is generally a mild month. The average temperature is of
8.9 °C, with a minimum of
4.3 °C and a maximum of
13.4 °C.
On the coldest nights of the month, the temperature usually drops to around
-1.5 °C. However, it dropped to
-5.1 °C in December 1998.
On the warmest days of the month, the temperature usually reaches around
19 °C. However, it reached
23.4 °C in December 1999.
Precipitation amounts to
225 mm, distributed over 19 days.
The day lasts on average 9 hours and 20 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 4 hours of sunshine per day. So, the sun shines 44% of the time.
The average humidity is 83%. Hence, the air is normally humid.
The average wind speed is of
10.2 kph.
The average sea temperature is of
12 °C. Therefore, the sea is very cold for swimming.