Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.9 °C
Coldest
0.7 °C
Wettest
46%
Windiest
5.0 m/s
Prevailing
SW
3.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Eureka over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -2°C. Eureka has no sharply defined rainy season: the chance of rain on a given day runs from 39% in September, the driest month, to 48% in April, the wettest. Winds in Eureka are highest in March, averaging 3.6 m/s (13 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW. The clearest skies in Eureka come in June, when the sky is typically 28% covered; January is the cloudiest month, at 53%.
Month by month Eureka climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
2°C
-2°C
-3°C
43%
53%
3.2 m/s
2
0
11
February
6°C
0°C
1°C
43%
45%
3.2 m/s
8
0
28
March
12°C
5°C
7°C
47%
48%
3.6 m/s
16
0
46
April
17°C
9°C
13°C
48%
41%
3.5 m/s
41
6
61
May
23°C
15°C
21°C
48%
41%
2.7 m/s
60
32
49
June
28°C
21°C
29°C
45%
28%
2.3 m/s
38
56
14
July
30°C
22°C
32°C
45%
30%
1.9 m/s
15
51
4
August
29°C
20°C
30°C
45%
32%
1.8 m/s
30
56
9
September
26°C
17°C
26°C
39%
28%
1.8 m/s
51
53
27
October
19°C
11°C
16°C
44%
38%
2.6 m/s
51
16
60
November
11°C
4°C
7°C
44%
38%
2.8 m/s
19
1
48
December
6°C
1°C
1°C
45%
46%
3.0 m/s
4
0
25
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Eureka weather by season
Year round, Eureka has days of about 2°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from -2°C to 22°C through the year, and the average temperature over the year is 14°C around the clock. Rain is most likely around April and least likely around September. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Eureka weather in winterDecember to February
High 5°CLow -0°CRain 44%
Winter in Eureka has typical daily highs of about 5°C and lows of about -0°C, with a 44% chance of rain on a given day.
Eureka weather in springMarch to May
High 17°CLow 10°CRain 48%
Spring in Eureka has typical daily highs of about 17°C and lows of about 10°C, with a 48% chance of rain on a given day.
Eureka weather in summerJune to August
High 29°CLow 21°CRain 45%
Summer in Eureka has typical daily highs of about 29°C and lows of about 21°C, with a 45% chance of rain on a given day.
Eureka weather in autumnSeptember to November
High 19°CLow 10°CRain 42%
Autumn in Eureka has typical daily highs of about 19°C and lows of about 10°C, with a 42% chance of rain on a given day.
When is the rainy season in Eureka?
Eureka has no sharply defined rainy season: the chance of rain on a given day runs from 39% in September, the driest month, to 48% in April, the wettest.
What time of year is Eureka windiest?
Winds in Eureka are highest in March, averaging 3.6 m/s (13 km/h), and lightest in August, at 1.8 m/s (6 km/h). The prevailing wind is from the SW.
What is the average temperature in Eureka year round?
The average temperature in Eureka over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -2°C.