Eureka weather in November
In November, Eureka sees average daytime highs of 55°F and overnight lows near 49°F, with 5.7 in of rain across 12.5 wet days and about 9.7 hours of daylight. It is the 7th-warmest and 5th-wettest month of the year here.
Day-to-day highs hold fairly steady near 55°F through the month. The sky is clear or mostly clear about 30% of the time in November, and the air most often feels dry.
Daylight stretches from about 10 h 12 min at the start of November to 9 h 18 min by month's end. Set against the rest of the year, November is Eureka's 8th-clearest and 8th-windiest month. For the whole year in context, see Eureka's year-round climate.
- Daytime high
- 55°
- 7th warmest
- Overnight low
- 49°
- 6th coldest
- Rainfall
- 5.7 in
- 12.5 wet days
- Daylight
- 9 h 42 min
- 7:11 AM – 4:52 PM
- Cloud cover
- 61%
- 8th clearest
- Wind
- 8 mph
- 8th windiest
- Solar energy
- 2.19 kWh/m²
- Travel score
- 3.3
- out of 10
Eureka is city in and county seat of Humboldt County, California, United States.
- Density
- 722/km²
- people per km²
- Founded
- 1850
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in November
Day-to-day highs hold fairly steady near 55°F through the month.
A typical November day in Eureka reaches about 55°F in the afternoon and slips back to 49°F overnight — a 6°F spread between the day's warmth and the night's chill. On most days the high lands between 51°F and 59°F. Set against its neighbours, November runs about 4°F cooler than October and about 2°F warmer than December.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 57 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 56 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 55 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 | 54 |
| Avg low (°F) | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 49 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 48 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 57 | 50 |
| 2 | 56 | 50 |
| 3 | 56 | 50 |
| 4 | 56 | 50 |
| 5 | 56 | 50 |
| 6 | 56 | 50 |
| 7 | 56 | 50 |
| 8 | 56 | 50 |
| 9 | 56 | 50 |
| 10 | 56 | 50 |
| 11 | 56 | 50 |
| 12 | 55 | 50 |
| 13 | 55 | 49 |
| 14 | 55 | 49 |
| 15 | 55 | 49 |
| 16 | 55 | 49 |
| 17 | 55 | 49 |
| 18 | 55 | 49 |
| 19 | 55 | 49 |
| 20 | 55 | 49 |
| 21 | 55 | 49 |
| 22 | 54 | 49 |
| 23 | 54 | 48 |
| 24 | 54 | 48 |
| 25 | 54 | 48 |
| 26 | 54 | 48 |
| 27 | 54 | 48 |
| 28 | 54 | 48 |
| 29 | 54 | 48 |
| 30 | 54 | 48 |
Eureka weather by month
How November compares with the rest of the year at a glance. November is the 7th-warmest and 5th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 53° / 46° | 8.0 | 15.3 | 9.4 | 2.6 |
| Feb | 53° / 46° | 6.7 | 13.4 | 10.4 | 2.6 |
| Mar | 53° / 47° | 7.0 | 14.7 | 11.7 | 2.6 |
| Apr | 53° / 48° | 4.1 | 11.8 | 13.1 | 3.0 |
| May | 55° / 50° | 2.1 | 7 | 14.2 | 3.9 |
| Jun | 57° / 52° | 0.9 | 3.7 | 14.9 | 4.9 |
| Jul | 60° / 53° | 0.1 | 0.8 | 14.6 | 6.0 |
| Aug | 61° / 54° | 0.2 | 0.9 | 13.6 | 6.3 |
| Sep | 61° / 54° | 0.6 | 2.3 | 12.3 | 6.3 |
| Oct | 59° / 52° | 2.9 | 6.3 | 10.9 | 5.1 |
| Nov | 55° / 49° | 5.7 | 12.5 | 9.7 | 3.3 |
| Dec | 53° / 47° | 9.6 | 15.6 | 9.1 | 2.6 |
Cloud cover in November
The sky is clear or mostly clear about 30% of the time in November.
Beyond those clear spells, partly cloudy skies cover about 13% of November, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 54 | 53 | 53 | 52 | 51 | 50 | 49 | 48 | 46 | 45 | 44 | 43 | 41 | 40 | 40 | 39 | 39 | 38 | 37 | 37 | 37 | 37 | 38 | 38 | 39 | 39 | 39 | 38 | 38 | 38 |
| Cloudier (%) | 46 | 47 | 47 | 48 | 49 | 50 | 51 | 52 | 54 | 55 | 56 | 57 | 59 | 60 | 60 | 61 | 61 | 62 | 63 | 63 | 63 | 63 | 62 | 62 | 61 | 61 | 61 | 62 | 62 | 62 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 54 | 46 |
| 2 | 53 | 47 |
| 3 | 53 | 47 |
| 4 | 52 | 48 |
| 5 | 51 | 49 |
| 6 | 50 | 50 |
| 7 | 49 | 51 |
| 8 | 48 | 52 |
| 9 | 46 | 54 |
| 10 | 45 | 55 |
| 11 | 44 | 56 |
| 12 | 43 | 57 |
| 13 | 41 | 59 |
| 14 | 40 | 60 |
| 15 | 40 | 60 |
| 16 | 39 | 61 |
| 17 | 39 | 61 |
| 18 | 38 | 62 |
| 19 | 37 | 63 |
| 20 | 37 | 63 |
| 21 | 37 | 63 |
| 22 | 37 | 63 |
| 23 | 38 | 62 |
| 24 | 38 | 62 |
| 25 | 39 | 61 |
| 26 | 39 | 61 |
| 27 | 39 | 61 |
| 28 | 38 | 62 |
| 29 | 38 | 62 |
| 30 | 38 | 62 |
Chance of precipitation in November
Eureka gets around 5.7 in of rain over 12.5 wet days in November. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 42% and peaks near 47% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 30 | 31 | 32 | 32 | 33 | 34 | 35 | 36 | 38 | 39 | 41 | 42 | 43 | 44 | 45 | 45 | 46 | 46 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 47 |
| Rain chance (%) | |
|---|---|
| 1 | 30 |
| 2 | 31 |
| 3 | 32 |
| 4 | 32 |
| 5 | 33 |
| 6 | 34 |
| 7 | 35 |
| 8 | 36 |
| 9 | 38 |
| 10 | 39 |
| 11 | 41 |
| 12 | 42 |
| 13 | 43 |
| 14 | 44 |
| 15 | 45 |
| 16 | 45 |
| 17 | 46 |
| 18 | 46 |
| 19 | 47 |
| 20 | 47 |
| 21 | 47 |
| 22 | 47 |
| 23 | 47 |
| 24 | 47 |
| 25 | 47 |
| 26 | 47 |
| 27 | 47 |
| 28 | 47 |
| 29 | 47 |
| 30 | 47 |
Humidity in November
Most of November feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, November lands in the dry band about 99% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 97 | 97 | 97 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 99 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Comfortable (%) | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 97 | 3 |
| 2 | 97 | 3 |
| 3 | 97 | 3 |
| 4 | 98 | 2 |
| 5 | 98 | 2 |
| 6 | 98 | 2 |
| 7 | 98 | 2 |
| 8 | 98 | 2 |
| 9 | 98 | 2 |
| 10 | 98 | 2 |
| 11 | 99 | 1 |
| 12 | 99 | 1 |
| 13 | 99 | 1 |
| 14 | 99 | 1 |
| 15 | 99 | 1 |
| 16 | 99 | 1 |
| 17 | 99 | 1 |
| 18 | 99 | 1 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
Wind in November
Winds average 8 mph in November.
Across November, daily wind ranges from about 8 mph on the calmest days to 9 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 8 | light breeze |
| 2 | 8 | light breeze |
| 3 | 8 | light breeze |
| 4 | 8 | light breeze |
| 5 | 8 | light breeze |
| 6 | 8 | light breeze |
| 7 | 8 | light breeze |
| 8 | 8 | light breeze |
| 9 | 8 | light breeze |
| 10 | 8 | light breeze |
| 11 | 8 | light breeze |
| 12 | 8 | light breeze |
| 13 | 8 | light breeze |
| 14 | 8 | light breeze |
| 15 | 9 | light breeze |
| 16 | 9 | light breeze |
| 17 | 9 | light breeze |
| 18 | 9 | light breeze |
| 19 | 9 | light breeze |
| 20 | 9 | light breeze |
| 21 | 9 | light breeze |
| 22 | 9 | light breeze |
| 23 | 9 | light breeze |
| 24 | 9 | light breeze |
| 25 | 9 | light breeze |
| 26 | 9 | light breeze |
| 27 | 9 | light breeze |
| 28 | 9 | light breeze |
| 29 | 9 | light breeze |
| 30 | 9 | light breeze |
Sunrise & sunset in November
Daylight runs from about 10 h 12 min at the start of November to 9 h 18 min by month's end. The lit band spans sunrise to sunset each day.
Days shrink by about 54 minutes over November. Sunrise moves from 6:54 AM to 7:27 AM, and sunset from 5:07 PM to 4:45 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.2 | 10.2 | 10.1 | 10.1 | 10.1 | 10.0 | 10.0 | 10.0 | 9.9 | 9.9 | 9.8 | 9.8 | 9.8 | 9.7 | 9.7 | 9.7 | 9.7 | 9.6 | 9.6 | 9.6 | 9.5 | 9.5 | 9.5 | 9.5 | 9.4 | 9.4 | 9.4 | 9.4 | 9.3 | 9.3 |
| Sunrise (AM) | 6:54 | 6:55 | 6:56 | 6:57 | 6:58 | 7:00 | 7:01 | 7:02 | 7:03 | 7:04 | 7:06 | 7:07 | 7:08 | 7:09 | 7:10 | 7:11 | 7:13 | 7:14 | 7:15 | 7:16 | 7:17 | 7:18 | 7:19 | 7:20 | 7:22 | 7:23 | 7:24 | 7:25 | 7:26 | 7:27 |
| Sunset (PM) | 5:07 | 5:06 | 5:05 | 5:03 | 5:02 | 5:01 | 5:00 | 4:59 | 4:58 | 4:57 | 4:56 | 4:56 | 4:55 | 4:54 | 4:53 | 4:52 | 4:52 | 4:51 | 4:50 | 4:50 | 4:49 | 4:49 | 4:48 | 4:48 | 4:47 | 4:47 | 4:46 | 4:46 | 4:46 | 4:45 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.2 | 6:54 | 5:07 |
| 2 | 10.2 | 6:55 | 5:06 |
| 3 | 10.1 | 6:56 | 5:05 |
| 4 | 10.1 | 6:57 | 5:03 |
| 5 | 10.1 | 6:58 | 5:02 |
| 6 | 10.0 | 7:00 | 5:01 |
| 7 | 10.0 | 7:01 | 5:00 |
| 8 | 10.0 | 7:02 | 4:59 |
| 9 | 9.9 | 7:03 | 4:58 |
| 10 | 9.9 | 7:04 | 4:57 |
| 11 | 9.8 | 7:06 | 4:56 |
| 12 | 9.8 | 7:07 | 4:56 |
| 13 | 9.8 | 7:08 | 4:55 |
| 14 | 9.7 | 7:09 | 4:54 |
| 15 | 9.7 | 7:10 | 4:53 |
| 16 | 9.7 | 7:11 | 4:52 |
| 17 | 9.7 | 7:13 | 4:52 |
| 18 | 9.6 | 7:14 | 4:51 |
| 19 | 9.6 | 7:15 | 4:50 |
| 20 | 9.6 | 7:16 | 4:50 |
| 21 | 9.5 | 7:17 | 4:49 |
| 22 | 9.5 | 7:18 | 4:49 |
| 23 | 9.5 | 7:19 | 4:48 |
| 24 | 9.5 | 7:20 | 4:48 |
| 25 | 9.4 | 7:22 | 4:47 |
| 26 | 9.4 | 7:23 | 4:47 |
| 27 | 9.4 | 7:24 | 4:46 |
| 28 | 9.4 | 7:25 | 4:46 |
| 29 | 9.3 | 7:26 | 4:46 |
| 30 | 9.3 | 7:27 | 4:45 |
Solar energy in November
Average shortwave solar energy reaching the ground each day in November, about 2.19 kWh/m².
For context, solar energy here swings from a low near 1.64 kWh/m² to a high of 7.66 kWh/m² in July across the year — November's 2.19 kWh/m² sits near the bottom.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 2.8 | 2.8 | 2.7 | 2.7 | 2.6 | 2.6 | 2.5 | 2.5 | 2.4 | 2.4 | 2.3 | 2.3 | 2.3 | 2.2 | 2.2 | 2.1 | 2.1 | 2.1 | 2.0 | 2.0 | 2.0 | 2.0 | 1.9 | 1.9 | 1.9 | 1.9 | 1.9 | 1.8 | 1.8 | 1.8 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim | Dim |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 2.8 | Moderate |
| 2 | 2.8 | Moderate |
| 3 | 2.7 | Moderate |
| 4 | 2.7 | Moderate |
| 5 | 2.6 | Moderate |
| 6 | 2.6 | Moderate |
| 7 | 2.5 | Moderate |
| 8 | 2.5 | Moderate |
| 9 | 2.4 | Moderate |
| 10 | 2.4 | Moderate |
| 11 | 2.3 | Moderate |
| 12 | 2.3 | Moderate |
| 13 | 2.3 | Moderate |
| 14 | 2.2 | Moderate |
| 15 | 2.2 | Moderate |
| 16 | 2.1 | Moderate |
| 17 | 2.1 | Moderate |
| 18 | 2.1 | Moderate |
| 19 | 2.0 | Moderate |
| 20 | 2.0 | Moderate |
| 21 | 2.0 | Dim |
| 22 | 2.0 | Dim |
| 23 | 1.9 | Dim |
| 24 | 1.9 | Dim |
| 25 | 1.9 | Dim |
| 26 | 1.9 | Dim |
| 27 | 1.9 | Dim |
| 28 | 1.8 | Dim |
| 29 | 1.8 | Dim |
| 30 | 1.8 | Dim |
Hazard calendar for Eureka
In November, Eureka sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Eureka's rainy season runs November–March, when most of the year's rain falls.
Is November a good time to visit Eureka?
Our two travel scores rate November for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
November is a weaker month for outdoor sightseeing in Eureka.
What to pack for Eureka in November
From November's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In November, Eureka sees daytime highs around 55°F and nights near 49°F. Worth packing: a warm layer and rain gear. About 13 days see rain.
Sea temperature near Eureka in November
The nearest coast averages about 53°F in November — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 55°F and coldest in March near 51°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 52 | 52 | 51 | 52 | 52 | 53 | 54 | 55 | 55 | 54 | 53 | 53 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 52 | Bracing |
| Feb | 52 | Bracing |
| Mar | 51 | Bracing |
| Apr | 52 | Bracing |
| May | 52 | Bracing |
| Jun | 53 | Bracing |
| Jul | 54 | Bracing |
| Aug | 55 | Bracing |
| Sep | 55 | Bracing |
| Oct | 54 | Bracing |
| Nov | 53 | Bracing |
| Dec | 53 | Bracing |
UV index in Eureka in November
Clear-sky midday UV in November peaks around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Eureka peaks around June 21 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 3 | 5 | 6 | 9 | 10 | 9 | 8 | 5 | 5 | 2 | 2 |
| Level | Low | Moderate | Moderate | High | Very high | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 3 | Moderate |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 9 | Very high |
| Jun | 10 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 5 | Moderate |
| Nov | 2 | Low |
| Dec | 2 | Low |
Air quality in Eureka in November
Average fine-particle pollution (PM2.5) through the year — so you can see where November falls, not just the annual average.
Air quality in Eureka is worst in September — around 35 µg/m³ PM2.5 (poor), about 6.3× the cleanest month (December, 6 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 6 | 7 | 8 | 9 | 8 | 9 | 11 | 28 | 35 | 8 | 7 | 6 |
| Level | Good | Good | Good | Good | Good | Good | Good | Moderate | Poor | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 6 | Good |
| Feb | 7 | Good |
| Mar | 8 | Good |
| Apr | 9 | Good |
| May | 8 | Good |
| Jun | 9 | Good |
| Jul | 11 | Good |
| Aug | 28 | Moderate |
| Sep | 35 | Poor |
| Oct | 8 | Good |
| Nov | 7 | Good |
| Dec | 6 | Good |
Where is Eureka?
Eureka sits at 40.8°N, 124.2°W, 39 ft above sea level, in United States. The nearest listed city is Bayside, 6.2 mi away.
Topography around Eureka
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Eureka.
Within 2 miles, the terrain around Eureka has only modest variations in elevation — a maximum elevation change of 302 ft around an average of 39 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 2,293 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 7,415 ft.
The land around Eureka is covered by water (35%) and artificial surfaces (32%) within 2 miles, water (46%) and trees (39%) within 10 miles, and trees (64%) and water (30%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Eureka (40.8021°, -124.1637°, elevation 39 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).