UTC Offset
UTC-07:00
Eureka, United States Snapshot 2026
Where is Eureka?
Eureka, United States
- Continent
- Americas
- Country
- United States
- City
- Eureka
- Population
- 27K
- Elevation
- 12 m
- Coordinates
- 40.80°, -124.16°
Eureka is a city in United States with a population of approximately 27K. Average temperatures range from 7°C (44°F) in February to 20°C (68°F) in August. The best time to visit is June, July, August, September.
Time in Eureka right now
Open full time & time zone page 11:53 53
Monday, June 15, 2026
IANA time zone
America/Los_Angeles
Daylight saving
DST in effect
PST / PDT
Next DST change
November 1
backward -1h
Live weather in Eureka
Daylight in Eureka today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 05m
Climate normals for Eureka
Long-term monthly averages based on historical data.
January
Wet 
February
Wet March
Wet April
Fair May
Good June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Fair December
Wet | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 13°C / 7°C | 11°C / 4°C | 17days (254 mm) Wet | 5.7h Fair | 83% Humid | 2.3 Moderate | Wet | View Details |
| February | 12°C / 7°C | 10°C / 4°C | 13days (186 mm) Wet | 7.2h Good | 83% Humid | 3.1 Moderate | Wet | View Details |
| March | 13°C / 7°C | 10°C / 4°C | 16days (210 mm) Wet | 8.3h Good | 83% Humid | 4.1 Moderate | Wet | View Details |
| April | 14°C / 8°C | 12°C / 6°C | 10days (100 mm) Wet | 10.3h Excellent | 83% Humid | 6 High | Fair | View Details |
| May | 15°C / 9°C | 15°C / 8°C | 7days (53 mm) Good | 12h Excellent | 84% Humid | 7.3 Very High | Good | View Details |
| June best | 17°C / 11°C | 17°C / 10°C | 2days (15 mm) Excellent | 13.2h Excellent | 83% Humid | 7.7 Very High | Excellent | View Details |
| July best | 19°C / 13°C | 20°C / 12°C | 1days (4 mm) Excellent | 13.4h Excellent | 82% Humid | 7.9 Very High | Excellent | View Details |
| August best | 20°C / 13°C | 21°C / 13°C | 1days (5 mm) Excellent | 12.6h Excellent | 82% Humid | 7.2 Very High | Excellent | View Details |
| September best | 20°C / 13°C | 20°C / 13°C | 3days (24 mm) Excellent | 11h Excellent | 82% Humid | 5.9 High | Excellent | View Details |
| October | 18°C / 11°C | 17°C / 10°C | 7days (86 mm) Good | 9.1h Good | 81% Humid | 4.3 Moderate | Good | View Details |
| November | 15°C / 9°C | 13°C / 6°C | 12days (174 mm) Wet | 7h Good | 83% Humid | 2.7 Moderate | Fair | View Details |
| December | 13°C / 7°C | 11°C / 5°C | 14days (216 mm) Wet | 5.4h Fair | 84% Humid | 1.9 Low | Wet | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 13°C / 7°C . Feb: 12°C / 7°C . Mar: 13°C / 7°C . Apr: 14°C / 8°C . May: 15°C / 9°C . Jun: 17°C / 11°C . Jul: 19°C / 13°C . Aug: 20°C / 13°C . Sep: 20°C / 13°C . Oct: 18°C / 11°C . Nov: 15°C / 9°C . Dec: 13°C / 7°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 254 mm. Feb: 186 mm. Mar: 210 mm. Apr: 100 mm. May: 53 mm. Jun: 15 mm. Jul: 4 mm. Aug: 5 mm. Sep: 24 mm. Oct: 86 mm. Nov: 174 mm. Dec: 216 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 83%. Feb: 83%. Mar: 83%. Apr: 83%. May: 84%. Jun: 83%. Jul: 82%. Aug: 82%. Sep: 82%. Oct: 81%. Nov: 83%. Dec: 84%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 19 km/h . Feb: 19 km/h . Mar: 19 km/h . Apr: 18 km/h . May: 18 km/h . Jun: 17 km/h . Jul: 15 km/h . Aug: 14 km/h . Sep: 14 km/h . Oct: 15 km/h . Nov: 16 km/h . Dec: 17 km/h .
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 11°C . Feb: 11°C . Mar: 11°C . Apr: 12°C . May: 12°C . Jun: 12°C . Jul: 14°C . Aug: 15°C . Sep: 15°C . Oct: 13°C . Nov: 12°C . Dec: 11°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Eureka has a population of approximately 27K.
The best months to visit Eureka are June, July, August, September, when temperatures are pleasant and rainfall is lower.
Eureka receives approximately 1327mm of rainfall annually across 103 rainy days.
Eureka is located in United States, in the Americas region.
Eureka sits at an elevation of 12 m (39 ft) above sea level.