Sea weather in Eureka in California All the beach weather in Eureka

All the essential weather information for enjoying the beach in Eureka in California, for swimming, tanning or water sports! Our sea weather data is reliable, easy to read and updated every day.

Weather: When should you go to the beach in Eureka over the next 7 days?

Discover the best moment to go to the beach in Eureka in California this week to enjoy the best weather and calmest sea possible. Our opinion is based on reliable sea weather forecasts in Eureka. You can see full forecasts by clicking on the day you want to see in the table below.

Date Outside temp. Our opinion
Saturday 18 July 202656°F to 58°Fdiscouraged
Sunday 19 July 202654°F to 58°Fdiscouraged
Monday 20 July 202656°F to 58°Frecommended
Tuesday 21 July 202656°F to 59°Frecommended
Wednesday 22 July 202658°F to 59°Frecommended
Thursday 23 July 202656°F to 58°Frecommended

Sea Weather: Your daily and hourly sea weather in Eureka

Sea weather on Saturday 18 July 2026

On Saturday 18 July 2026, the sun will rise at 06:01 and will set at 20:45 on the beach(es) of Eureka. The outside temperature will be a high of 58°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.1mph km/h (with gusts up to 22.4mph). Wave height will be up to 6.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)
Perceived temperature13°C (55°F)12°C (53°F)11°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)11°C (52°F)11°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity94%95%94%91%90%90%91%93%
Barometric pressure1016 hPa1015 hPa1016 hPa1017 hPa1017 hPa1016 hPa1016 hPa1016 hPa
Cloud cover80%60%47%33%35%28%27%41%
Heat index13°C (56°F)13°C (55°F)13°C (55°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)
Dew point12°C (54°F)12°C (54°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)11°C (53°F)12°C (53°F)
Wind
Speed6km/h (4mph)13km/h (8mph)13km/h (8mph)17km/h (11mph)21km/h (13mph)21km/h (13mph)18km/h (11mph)15km/h (9mph)
Gusts10km/h (6mph)22km/h (13mph)22km/h (14mph)27km/h (17mph)34km/h (21mph)36km/h (22mph)33km/h (20mph)26km/h (16mph)
Direction 339°
NNW
352°
N
356°
N
341°
NNW
339°
NNW
344°
NNW
349°
N
349°
NNW
Wind chill13°C (55°F)12°C (53°F)11°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)11°C (52°F)11°C (53°F)
Waves
Height1.7m (5.6ft)1.9m (6.4ft)1.9m (6.3ft)1.9m (6.1ft)1.9m (6.2ft)1.9m (6.2ft)1.9m (6.2ft)2.0m (6.7ft)
Direction 334°
NNW
333°
NNW
328°
NNW
323°
NW
321°
NW
320°
NW
319°
NW
323°
NW
Period6.8 sec.15.6 sec.6.8 sec.13.2 sec.15.4 sec.15.3 sec.7.2 sec.7.4 sec.
Significant height0.8m (2.6ft)1.1m (3.6ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)1.0m (3.3ft)0.7m (2.3ft)0.7m (2.3ft)
Sea water temperature
Water temperature10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)

Sea weather on Sunday 19 July 2026

On Sunday 19 July 2026, the sun will rise at 06:01 and will set at 20:44 on the beach(es) of Eureka. The outside temperature will be a high of 58°F t and a low of 54°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 13.7mph km/h (with gusts up to 23mph). Wave height will be up to 7.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)12°C (54°F)12°C (54°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)
Perceived temperature12°C (53°F)11°C (53°F)11°C (52°F)12°C (53°F)12°C (53°F)11°C (52°F)11°C (52°F)12°C (53°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity94%96%95%92%90%91%93%94%
Barometric pressure1015 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1012 hPa1012 hPa
Cloud cover61%64%48%41%34%49%65%66%
Heat index13°C (55°F)12°C (54°F)12°C (54°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)
Dew point12°C (54°F)12°C (53°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (54°F)
Wind
Speed14km/h (9mph)10km/h (6mph)14km/h (9mph)16km/h (10mph)21km/h (13mph)22km/h (14mph)19km/h (12mph)14km/h (9mph)
Gusts23km/h (14mph)16km/h (10mph)24km/h (15mph)25km/h (15mph)34km/h (21mph)37km/h (23mph)32km/h (20mph)23km/h (14mph)
Direction 334°
NNW
352°
N
358°
N
335°
NNW
336°
NNW
350°
N
352°
N
349°
N
Wind chill12°C (53°F)11°C (53°F)11°C (52°F)12°C (53°F)12°C (53°F)11°C (52°F)11°C (52°F)12°C (53°F)
Waves
Height2.2m (7.3ft)2.3m (7.6ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.3ft)2.2m (7.4ft)2.2m (7.4ft)
Direction 326°
NW
327°
NNW
324°
NW
322°
NW
323°
NW
325°
NW
326°
NW
324°
NW
Period14.7 sec.11.4 sec.7.8 sec.14.7 sec.14.6 sec.15.9 sec.8.1 sec.8.2 sec.
Significant height1.2m (3.9ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)

Sea weather on Monday 20 July 2026

On Monday 20 July 2026, the sun will rise at 06:02 and will set at 20:43 on the beach(es) of Eureka. The outside temperature will be a high of 58°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.1mph km/h (with gusts up to 13.7mph). Wave height will be up to 7.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)13°C (55°F)14°C (57°F)13°C (56°F)14°C (57°F)13°C (56°F)13°C (56°F)
Perceived temperature12°C (53°F)12°C (54°F)13°C (56°F)13°C (56°F)12°C (54°F)13°C (56°F)13°C (56°F)13°C (56°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity95%96%96%91%93%91%91%94%
Barometric pressure1012 hPa1011 hPa1011 hPa1013 hPa1014 hPa1014 hPa1013 hPa1014 hPa
Cloud cover86%96%69%61%70%37%21%40%
Heat index13°C (55°F)13°C (55°F)13°C (55°F)14°C (57°F)13°C (56°F)14°C (57°F)13°C (56°F)13°C (56°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (53°F)12°C (54°F)
Wind
Speed13km/h (8mph)9km/h (5mph)4km/h (3mph)9km/h (5mph)13km/h (8mph)8km/h (5mph)6km/h (4mph)7km/h (4mph)
Gusts21km/h (13mph)14km/h (9mph)7km/h (5mph)14km/h (9mph)22km/h (14mph)14km/h (9mph)12km/h (7mph)13km/h (8mph)
Direction 344°
NNW
294°
WNW

N
255°
WSW
211°
SSW
262°
W
250°
WSW
219°
SW
Wind chill12°C (53°F)12°C (54°F)13°C (56°F)13°C (56°F)12°C (54°F)13°C (56°F)13°C (56°F)13°C (56°F)
Waves
Height2.2m (7.3ft)2.2m (7.1ft)2.1m (6.8ft)2.0m (6.5ft)1.9m (6.2ft)1.8m (5.9ft)1.7m (5.7ft)1.7m (5.6ft)
Direction 328°
NNW
327°
NNW
324°
NW
323°
NW
323°
NW
323°
NW
324°
NW
323°
NW
Period8.1 sec.17.6 sec.8.0 sec.8.0 sec.8.0 sec.7.9 sec.7.9 sec.7.9 sec.
Significant height0.7m (2.3ft)1.1m (3.6ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.7m (2.3ft)0.4m (1.3ft)0.4m (1.3ft)
Sea water temperature
Water temperature10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)10°C (50°F)

Sea weather on Tuesday 21 July 2026

On Tuesday 21 July 2026, the sun will rise at 06:03 and will set at 20:42 on the beach(es) of Eureka. The outside temperature will be a high of 59°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.7mph km/h (with gusts up to 18mph). Wave height will be up to 5.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (56°F)14°C (56°F)14°C (57°F)15°C (58°F)14°C (58°F)14°C (57°F)14°C (57°F)15°C (60°F)
Perceived temperature13°C (56°F)14°C (56°F)14°C (57°F)14°C (57°F)14°C (58°F)13°C (55°F)13°C (55°F)15°C (60°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity92%92%90%86%88%90%92%92%
Barometric pressure1014 hPa1013 hPa1013 hPa1014 hPa1014 hPa1014 hPa1013 hPa1013 hPa
Cloud cover32%67%49%16%44%17%19%13%
Heat index14°C (56°F)14°C (56°F)14°C (57°F)15°C (58°F)14°C (58°F)14°C (57°F)14°C (57°F)15°C (60°F)
Dew point12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)14°C (57°F)
Wind
Speed7km/h (4mph)3km/h (2mph)6km/h (4mph)12km/h (8mph)6km/h (4mph)14km/h (9mph)12km/h (7mph)10km/h (6mph)
Gusts13km/h (8mph)6km/h (3mph)12km/h (7mph)25km/h (16mph)14km/h (8mph)29km/h (18mph)25km/h (16mph)20km/h (13mph)
Direction 258°
WSW
55°
NE
48°
NE
14°
NNE
358°
N
34°
NNE
43°
NE
18°
NNE
Wind chill13°C (56°F)14°C (56°F)14°C (57°F)14°C (57°F)14°C (58°F)13°C (55°F)13°C (55°F)15°C (60°F)
Waves
Height1.7m (5.4ft)1.6m (5.3ft)1.6m (5.2ft)1.6m (5.2ft)1.5m (5.1ft)1.5m (5.0ft)1.5m (4.9ft)1.5m (4.9ft)
Direction 323°
NW
322°
NW
205°
SSW
200°
SSW
200°
SSW
201°
SSW
205°
SSW
206°
SSW
Period7.9 sec.7.8 sec.7.8 sec.7.7 sec.7.7 sec.7.7 sec.7.7 sec.7.6 sec.
Significant height0.4m (1.3ft)0.7m (2.3ft)0.6m (2ft)0.5m (1.6ft)0.5m (1.6ft)0.4m (1.3ft)0.5m (1.6ft)0.5m (1.6ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Wednesday 22 July 2026

On Wednesday 22 July 2026, the sun will rise at 06:04 and will set at 20:42 on the beach(es) of Eureka. The outside temperature will be a high of 59°F t and a low of 58°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 10.6mph km/h (with gusts up to 17.4mph). Wave height will be up to 5.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature15°C (59°F)15°C (58°F)14°C (58°F)15°C (58°F)15°C (59°F)15°C (59°F)15°C (58°F)14°C (58°F)
Perceived temperature15°C (59°F)15°C (58°F)14°C (57°F)15°C (58°F)15°C (60°F)14°C (58°F)13°C (56°F)14°C (57°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity94%94%90%90%91%89%90%93%
Barometric pressure1013 hPa1012 hPa1013 hPa1014 hPa1014 hPa1014 hPa1014 hPa1015 hPa
Cloud cover14%11%15%32%40%17%9%28%
Heat index15°C (59°F)15°C (58°F)14°C (58°F)15°C (58°F)15°C (59°F)15°C (59°F)15°C (58°F)14°C (58°F)
Dew point14°C (57°F)14°C (56°F)13°C (55°F)13°C (55°F)14°C (57°F)13°C (56°F)13°C (55°F)13°C (56°F)
Wind
Speed12km/h (7mph)6km/h (4mph)9km/h (6mph)8km/h (5mph)10km/h (6mph)16km/h (10mph)17km/h (10mph)11km/h (7mph)
Gusts25km/h (16mph)12km/h (8mph)19km/h (12mph)16km/h (10mph)19km/h (12mph)20km/h (13mph)28km/h (18mph)23km/h (14mph)
Direction
N
37°
NE
207°
SSW
238°
WSW
236°
SW
212°
SSW
194°
SSW
149°
SSE
Wind chill15°C (59°F)15°C (58°F)14°C (57°F)15°C (58°F)15°C (60°F)14°C (58°F)13°C (56°F)14°C (57°F)
Waves
Height1.5m (4.8ft)1.5m (4.9ft)1.5m (4.9ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)1.6m (5.2ft)
Direction 203°
SSW
202°
SSW
202°
SSW
206°
SSW
216°
SW
221°
SW
230°
SW
252°
WSW
Period7.6 sec.7.7 sec.8.0 sec.8.2 sec.8.3 sec.8.4 sec.8.5 sec.8.6 sec.
Significant height0.5m (1.6ft)0.5m (1.6ft)0.7m (2.3ft)0.9m (3ft)0.9m (3ft)0.7m (2.3ft)0.3m (1ft)0.2m (0.7ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather on Thursday 23 July 2026

On Thursday 23 July 2026, the sun will rise at 06:05 and will set at 20:41 on the beach(es) of Eureka. The outside temperature will be a high of 58°F t and a low of 56°F. There will be little to no precipitation today, so unless you go swimming, you can enjoy the beach and stay dry! The sea will be generally calm, with a wind speed of up to 8.7mph km/h (with gusts up to 16.2mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature14°C (58°F)14°C (57°F)14°C (57°F)14°C (58°F)14°C (57°F)14°C (57°F)14°C (56°F)13°C (56°F)
Perceived temperature14°C (57°F)13°C (55°F)13°C (56°F)14°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity95%96%96%94%94%94%96%98%
Barometric pressure1015 hPa1014 hPa1015 hPa1015 hPa1016 hPa1015 hPa1014 hPa1014 hPa
Cloud cover41%43%56%56%67%45%77%100%
Heat index14°C (58°F)14°C (57°F)14°C (57°F)14°C (58°F)14°C (57°F)14°C (57°F)14°C (56°F)13°C (56°F)
Dew point14°C (56°F)13°C (56°F)13°C (56°F)13°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Wind
Speed9km/h (6mph)13km/h (8mph)12km/h (7mph)12km/h (8mph)14km/h (9mph)13km/h (8mph)10km/h (6mph)9km/h (6mph)
Gusts20km/h (12mph)26km/h (16mph)23km/h (15mph)25km/h (15mph)25km/h (15mph)26km/h (16mph)21km/h (13mph)19km/h (12mph)
Direction 163°
SSE
185°
S
181°
S
194°
SSW
283°
WNW
249°
WSW
192°
SSW
172°
S
Wind chill14°C (57°F)13°C (55°F)13°C (56°F)14°C (56°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Waves
Height1.5m (4.9ft)1.4m (4.6ft)1.4m (4.6ft)1.3m (4.3ft)1.2m (3.9ft)1.2m (3.9ft)1.3m (4.3ft)1.2m (3.9ft)
Direction 263°
W
279°
W
292°
WNW
300°
WNW
311°
NW
236°
SW
197°
SSW
196°
SSW
Period8.6 sec.8.4 sec.8.3 sec.8.4 sec.8.2 sec.8.1 sec.8.0 sec.7.9 sec.
Significant height0.4m (1.3ft)0.9m (3ft)1.0m (3.3ft)0.9m (3ft)0.9m (3ft)0.8m (2.6ft)0.8m (2.6ft)1.0m (3.3ft)
Sea water temperature
Water temperature12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)12°C (54°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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