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 13 December 202547°F to 54°Frecommended
Sunday 14 December 202552°F to 56°Frecommended
Monday 15 December 202554°F to 56°Fdiscouraged
Tuesday 16 December 202554°F to 58°Fnot recommended
Wednesday 17 December 202549°F to 56°Fdiscouraged
Thursday 18 December 202549°F to 56°Fnot recommended
Friday 19 December 202550°F to 56°Fnot recommended

Sea Weather: Your daily and hourly sea weather in Eureka

Sea weather on Saturday 13 December 2025

On Saturday 13 December 2025, the sun will rise at 07:33 and will set at 16:49 on the beach(es) of Eureka. The outside temperature will be a high of 54°F t and a low of 47°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 17.4mph). Wave height will be up to 4.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (54°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)10°C (49°F)8°C (46°F)12°C (53°F)
Perceived temperature12°C (54°F)11°C (52°F)11°C (51°F)10°C (51°F)10°C (50°F)8°C (46°F)6°C (43°F)10°C (51°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity75%68%65%69%72%81%82%80%
Barometric pressure1016 hPa1015 hPa1016 hPa1017 hPa1017 hPa1017 hPa1016 hPa1018 hPa
Cloud cover6%4%2%1%3%0%1%94%
Heat index12°C (54°F)12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)10°C (49°F)8°C (46°F)12°C (53°F)
Dew point8°C (46°F)6°C (43°F)6°C (42°F)6°C (43°F)7°C (44°F)6°C (44°F)5°C (41°F)8°C (47°F)
Wind
Speed1km/h (0mph)8km/h (5mph)12km/h (7mph)12km/h (8mph)14km/h (9mph)12km/h (8mph)11km/h (7mph)12km/h (8mph)
Gusts1km/h (1mph)16km/h (10mph)23km/h (15mph)22km/h (14mph)28km/h (17mph)26km/h (16mph)23km/h (15mph)22km/h (14mph)
Direction 293°
WNW
156°
SSE
176°
S
160°
SSE
223°
SW
205°
SSW
172°
S
184°
S
Wind chill12°C (54°F)11°C (52°F)11°C (51°F)10°C (51°F)10°C (50°F)8°C (46°F)6°C (43°F)10°C (51°F)
Waves
Height1.5m (4.9ft)1.4m (4.7ft)1.3m (4.4ft)1.3m (4.2ft)1.2m (4.1ft)1.2m (4.0ft)1.2m (3.9ft)1.1m (3.7ft)
Direction 285°
WNW
284°
WNW
286°
WNW
285°
WNW
283°
WNW
278°
W
268°
W
269°
W
Period12.4 sec.12.2 sec.11.7 sec.11.6 sec.11.5 sec.11.6 sec.12.3 sec.11.9 sec.
Significant height0.2m (0.7ft)0.2m (0.7ft)0.4m (1.3ft)0.3m (1ft)0.4m (1.3ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)
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 14 December 2025

On Sunday 14 December 2025, the sun will rise at 07:34 and will set at 16:49 on the beach(es) of Eureka. The outside temperature will be a high of 56°F t and a low of 52°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 17.4mph). Wave height will be up to 3.6ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (53°F)11°C (52°F)12°C (53°F)13°C (55°F)12°C (53°F)11°C (52°F)12°C (53°F)
Perceived temperature11°C (51°F)10°C (51°F)9°C (49°F)11°C (51°F)12°C (53°F)10°C (51°F)10°C (49°F)10°C (50°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity76%75%70%66%65%73%79%74%
Barometric pressure1018 hPa1019 hPa1019 hPa1019 hPa1019 hPa1019 hPa1020 hPa1020 hPa
Cloud cover0%32%32%85%20%12%19%17%
Heat index12°C (53°F)12°C (53°F)11°C (52°F)12°C (53°F)13°C (55°F)12°C (53°F)11°C (52°F)12°C (53°F)
Dew point7°C (45°F)7°C (45°F)6°C (42°F)6°C (42°F)6°C (43°F)7°C (45°F)8°C (46°F)7°C (45°F)
Wind
Speed9km/h (6mph)11km/h (7mph)13km/h (8mph)10km/h (6mph)10km/h (6mph)14km/h (9mph)13km/h (8mph)14km/h (9mph)
Gusts19km/h (12mph)19km/h (12mph)26km/h (16mph)19km/h (12mph)19km/h (12mph)27km/h (17mph)27km/h (17mph)28km/h (17mph)
Direction 180°
S
191°
SSW
130°
SE
156°
SSE
171°
S
199°
SSW
185°
S
175°
S
Wind chill11°C (51°F)10°C (51°F)9°C (49°F)11°C (51°F)12°C (53°F)10°C (51°F)10°C (49°F)10°C (50°F)
Waves
Height1.1m (3.5ft)1.0m (3.3ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.2ft)1.0m (3.4ft)1.0m (3.4ft)1.0m (3.3ft)
Direction 268°
W
267°
W
267°
W
268°
W
267°
W
266°
W
264°
W
262°
W
Period11.7 sec.11.6 sec.11.2 sec.11.0 sec.10.7 sec.10.3 sec.10.1 sec.9.8 sec.
Significant height0.3m (1ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)
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 15 December 2025

On Monday 15 December 2025, the sun will rise at 07:34 and will set at 16:50 on the beach(es) of Eureka. The outside temperature will be a high of 56°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 13.1mph km/h (with gusts up to 18mph). Wave height will be up to 7.9ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature12°C (53°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Perceived temperature10°C (50°F)10°C (51°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)11°C (52°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity72%72%73%78%81%85%93%93%
Barometric pressure1021 hPa1021 hPa1022 hPa1023 hPa1023 hPa1023 hPa1023 hPa1023 hPa
Cloud cover23%78%100%100%100%100%100%100%
Heat index12°C (53°F)12°C (54°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)
Dew point7°C (44°F)8°C (46°F)8°C (47°F)9°C (48°F)10°C (50°F)10°C (51°F)11°C (53°F)12°C (53°F)
Wind
Speed14km/h (9mph)21km/h (13mph)20km/h (13mph)21km/h (13mph)18km/h (11mph)20km/h (12mph)18km/h (11mph)14km/h (9mph)
Gusts29km/h (18mph)26km/h (16mph)27km/h (17mph)22km/h (14mph)21km/h (13mph)26km/h (16mph)25km/h (16mph)29km/h (18mph)
Direction 145°
SE
173°
S
196°
SSW
173°
S
175°
S
197°
SSW
201°
SSW
188°
S
Wind chill10°C (50°F)10°C (51°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (52°F)11°C (51°F)11°C (52°F)
Waves
Height1.0m (3.2ft)1.0m (3.2ft)1.0m (3.3ft)1.1m (3.5ft)1.2m (4.1ft)1.5m (4.8ft)1.8m (6.0ft)2.4m (7.9ft)
Direction 259°
W
257°
WSW
257°
WSW
258°
WSW
264°
W
269°
W
279°
W
280°
W
Period9.6 sec.9.5 sec.9.3 sec.9.0 sec.7.8 sec.8.9 sec.10.5 sec.12.6 sec.
Significant height1.0m (3.3ft)1.0m (3.3ft)1.0m (3.3ft)1.1m (3.6ft)0.7m (2.3ft)0.4m (1.3ft)0.2m (0.7ft)0.5m (1.6ft)
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 16 December 2025

On Tuesday 16 December 2025, the sun will rise at 07:35 and will set at 16:50 on the beach(es) of Eureka. The outside temperature will be a high of 58°F t and a low of 54°F. Precipitation is in the forecast (0.1in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 25.5mph km/h (with gusts up to 25.5mph). Wave height will be up to 9.5ft 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)13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)14°C (56°F)
Perceived temperature12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)11°C (52°F)10°C (50°F)10°C (50°F)11°C (51°F)
Precipitation0in0in0in0in0in0.1in0in0in
Humidity95%94%98%97%99%99%98%98%
Barometric pressure1023 hPa1022 hPa1021 hPa1021 hPa1019 hPa1016 hPa1013 hPa1014 hPa
Cloud cover100%100%100%100%100%100%100%100%
Heat index13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)13°C (55°F)12°C (54°F)13°C (55°F)14°C (56°F)
Dew point12°C (53°F)12°C (54°F)12°C (54°F)13°C (55°F)12°C (54°F)12°C (53°F)12°C (54°F)13°C (56°F)
Wind
Speed10km/h (6mph)11km/h (7mph)12km/h (8mph)11km/h (7mph)16km/h (10mph)18km/h (11mph)26km/h (16mph)41km/h (26mph)
Gusts19km/h (12mph)21km/h (13mph)23km/h (14mph)20km/h (13mph)29km/h (18mph)31km/h (19mph)28km/h (17mph)41km/h (26mph)
Direction 183°
S
219°
SW
194°
SSW
202°
SSW
185°
S
230°
SW
167°
SSE
205°
SSW
Wind chill12°C (53°F)12°C (54°F)12°C (53°F)12°C (53°F)11°C (52°F)10°C (50°F)10°C (50°F)11°C (51°F)
Waves
Height2.8m (9.3ft)2.9m (9.4ft)2.7m (9.0ft)2.6m (8.5ft)2.5m (8.1ft)2.4m (7.7ft)2.3m (7.7ft)2.2m (7.3ft)
Direction 279°
W
277°
W
274°
W
272°
W
271°
W
270°
W
269°
W
268°
W
Period12.7 sec.12.5 sec.12.3 sec.12.1 sec.12.0 sec.12.1 sec.12.1 sec.12.1 sec.
Significant height0.3m (1ft)0.2m (0.7ft)0.3m (1ft)0.3m (1ft)0.3m (1ft)0.8m (2.6ft)0.9m (3ft)0.9m (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 Wednesday 17 December 2025

On Wednesday 17 December 2025, the sun will rise at 07:36 and will set at 16:50 on the beach(es) of Eureka. The outside temperature will be a high of 56°F t and a low of 49°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 20.5mph km/h (with gusts up to 23mph). Wave height will be up to 11.2ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (56°F)11°C (53°F)11°C (51°F)11°C (51°F)10°C (50°F)10°C (51°F)9°C (48°F)9°C (49°F)
Perceived temperature11°C (51°F)9°C (49°F)9°C (48°F)9°C (49°F)11°C (51°F)10°C (50°F)9°C (48°F)8°C (47°F)
Precipitation0in0in0in0in0in0in0in0in
Humidity87%78%75%74%69%64%65%71%
Barometric pressure1017 hPa1021 hPa1021 hPa1023 hPa1022 hPa1022 hPa1022 hPa1022 hPa
Cloud cover100%100%66%3%12%47%8%44%
Heat index13°C (56°F)11°C (53°F)11°C (51°F)11°C (51°F)10°C (50°F)10°C (51°F)9°C (48°F)9°C (49°F)
Dew point11°C (52°F)8°C (46°F)7°C (44°F)6°C (43°F)5°C (40°F)4°C (39°F)3°C (37°F)5°C (40°F)
Wind
Speed33km/h (21mph)19km/h (12mph)16km/h (10mph)10km/h (6mph)3km/h (2mph)5km/h (3mph)2km/h (1mph)8km/h (5mph)
Gusts37km/h (23mph)28km/h (18mph)23km/h (14mph)14km/h (9mph)5km/h (3mph)8km/h (5mph)3km/h (2mph)13km/h (8mph)
Direction 279°
W
338°
NNW

N
19°
NNE
314°
NW
324°
NW
33°
NNE
140°
SE
Wind chill11°C (51°F)9°C (49°F)9°C (48°F)9°C (49°F)11°C (51°F)10°C (50°F)9°C (48°F)8°C (47°F)
Waves
Height2.3m (7.5ft)2.4m (8.0ft)2.9m (9.5ft)3.3m (10.9ft)3.4m (11.3ft)3.4m (11.2ft)2.9m (9.7ft)2.9m (9.4ft)
Direction 268°
W
269°
W
277°
W
284°
WNW
285°
WNW
283°
WNW
289°
WNW
288°
WNW
Period12.1 sec.12.0 sec.11.8 sec.10.8 sec.11.5 sec.11.5 sec.10.3 sec.10.8 sec.
Significant height1.3m (4.3ft)0.8m (2.6ft)0.8m (2.6ft)0.9m (3ft)0.1m (0.3ft)0.7m (2.3ft)1.3m (4.3ft)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 Thursday 18 December 2025

On Thursday 18 December 2025, the sun will rise at 07:36 and will set at 16:51 on the beach(es) of Eureka. The outside temperature will be a high of 56°F t and a low of 49°F. Precipitation is in the forecast (0.2in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 35.4mph km/h (with gusts up to 39.2mph). Wave height will be up to 12.8ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature9°C (48°F)10°C (50°F)10°C (51°F)12°C (53°F)12°C (53°F)12°C (54°F)13°C (55°F)13°C (55°F)
Perceived temperature7°C (45°F)7°C (45°F)7°C (44°F)8°C (47°F)8°C (46°F)8°C (47°F)9°C (48°F)9°C (49°F)
Precipitation0in0in0in0in0in0in0in0.2in
Humidity73%71%74%77%84%86%84%89%
Barometric pressure1020 hPa1018 hPa1016 hPa1015 hPa1014 hPa1013 hPa1012 hPa1011 hPa
Cloud cover45%71%94%100%100%86%93%100%
Heat index9°C (48°F)10°C (50°F)10°C (51°F)12°C (53°F)12°C (53°F)12°C (54°F)13°C (55°F)13°C (55°F)
Dew point5°C (40°F)5°C (41°F)6°C (42°F)8°C (46°F)9°C (49°F)10°C (50°F)10°C (50°F)11°C (52°F)
Wind
Speed13km/h (8mph)24km/h (15mph)35km/h (22mph)48km/h (30mph)54km/h (34mph)57km/h (35mph)57km/h (36mph)54km/h (34mph)
Gusts20km/h (12mph)35km/h (22mph)41km/h (25mph)50km/h (31mph)55km/h (34mph)60km/h (37mph)63km/h (39mph)58km/h (36mph)
Direction 155°
SSE
173°
S
164°
SSE
175°
S
177°
S
178°
S
177°
S
181°
S
Wind chill7°C (45°F)7°C (45°F)7°C (44°F)8°C (47°F)8°C (46°F)8°C (47°F)9°C (48°F)9°C (49°F)
Waves
Height2.8m (9.2ft)2.7m (9.0ft)2.7m (8.9ft)2.9m (9.5ft)3.5m (11.5ft)3.9m (12.8ft)3.8m (12.5ft)3.5m (11.5ft)
Direction 288°
WNW
290°
WNW
292°
WNW
295°
WNW
306°
NW
298°
WNW
290°
WNW
288°
WNW
Period10.9 sec.11.0 sec.10.9 sec.11.7 sec.12.5 sec.12.6 sec.10.9 sec.10.1 sec.
Significant height0.6m (2ft)0.8m (2.6ft)1.2m (3.9ft)2.1m (6.9ft)2.5m (8.2ft)1.6m (5.2ft)0.8m (2.6ft)0.7m (2.3ft)
Sea water temperature
Water temperature10°C (50°F)10°C (50°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather on Friday 19 December 2025

On Friday 19 December 2025, the sun will rise at 07:37 and will set at 16:51 on the beach(es) of Eureka. The outside temperature will be a high of 56°F t and a low of 50°F. Precipitation is in the forecast (0.4in throughout the day): choose the right time to go to the beach and dodge the raindrops. Be careful, the sea will be generally rough with a wind speed of up to 28.6mph km/h (with gusts up to 32.3mph). Wave height will be up to 10.5ft today.

0:003:006:009:0012:0015:0018:0021:00
Weather
Sky condition
Outside temperature13°C (55°F)13°C (55°F)12°C (54°F)11°C (52°F)11°C (51°F)11°C (51°F)10°C (50°F)10°C (50°F)
Perceived temperature9°C (49°F)10°C (51°F)11°C (51°F)9°C (48°F)8°C (47°F)9°C (47°F)8°C (46°F)7°C (45°F)
Precipitation0.2in0.2in0.1in0in0in0in0in0in
Humidity94%97%98%92%84%75%72%72%
Barometric pressure1011 hPa1011 hPa1011 hPa1014 hPa1015 hPa1016 hPa1018 hPa1019 hPa
Cloud cover100%100%100%100%82%65%33%27%
Heat index13°C (55°F)13°C (55°F)12°C (54°F)11°C (52°F)11°C (51°F)11°C (51°F)10°C (50°F)10°C (50°F)
Dew point12°C (53°F)12°C (54°F)12°C (53°F)10°C (50°F)8°C (46°F)6°C (43°F)5°C (41°F)5°C (41°F)
Wind
Speed46km/h (29mph)24km/h (15mph)14km/h (9mph)22km/h (14mph)20km/h (12mph)15km/h (9mph)16km/h (10mph)18km/h (11mph)
Gusts52km/h (32mph)32km/h (20mph)22km/h (13mph)32km/h (20mph)29km/h (18mph)23km/h (14mph)26km/h (16mph)28km/h (17mph)
Direction 184°
S
217°
SW
262°
W
330°
NNW
347°
NNW
115°
ESE
237°
WSW
128°
SE
Wind chill9°C (49°F)10°C (51°F)11°C (51°F)9°C (48°F)8°C (47°F)9°C (47°F)8°C (46°F)7°C (45°F)
Waves
Height3.2m (10.5ft)3.0m (9.8ft)3.0m (9.8ft)3.0m (9.8ft)3.0m (9.8ft)3.0m (9.8ft)3.0m (9.8ft)3.0m (9.8ft)
Direction 289°
WNW
285°
WNW
287°
WNW
292°
WNW
296°
WNW
306°
NW
310°
NW
310°
NW
Period10.0 sec.9.9 sec.10.5 sec.10.8 sec.12.2 sec.12.6 sec.12.6 sec.12.7 sec.
Significant height0.8m (2.6ft)0.9m (3ft)0.8m (2.6ft)0.6m (2ft)0.5m (1.6ft)0.6m (2ft)0.6m (2ft)0.5m (1.6ft)
Sea water temperature
Water temperature12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)12°C (53°F)

Sea weather chart over the next 7 days

Outside temperature

Wind speed

Precipitation

Wave height

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