Tuesday, December 16th, 2025
SYNOPSIS: Light to moderate and locally heavy rain is forecast to continue through tonight for mostly Del Norte, Humboldt, Trinity and northern Mendocino Counties. A break in the rain is forecast on Wednesday, followed another high chance for heavy rain either on Thursday or Friday.
TODAY:
Inland: Rain. Areas of fog before 10am. High near 62. Calm wind becoming south southwest 5 to 8 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Along the Coast: Rain. The rain could be heavy at times. High near 58. Southeast wind 7 to 11 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
TONIGHT:
Inland: Rain. Low around 48. South southwest wind 5 to 7 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Along the Coast: Rain. Low around 54. Southeast wind 6 to 10 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible..
Extended Forecast: A slow-moving front will keep Northwest California wet through midweek, with steady rain becoming heavier later today and tonight. Areas of Del Norte, Humboldt, and Trinity counties could see 1–3.5 inches of rain by early Wednesday, with possible small stream flooding and minor slides. Gusty southwest winds up to 40 mph (higher on ridges) are expected tonight, and another round of strong winds and rain may arrive Thursday into Friday. After a brief break Saturday, another storm could bring more heavy rain and strong winds late in the weekend and into the following week.
Predicted Temperatures
| Location | High Today | Low Tonight | HighTomorrow |
| Inland | 62 | 48 | 58 |
| Along The Coast | 58 | 54 | 57 |
The coastal waters forecast from Point Saint George to Cape Mendocino and out to 10 nautical miles.
SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY MORNING
| Today | Wind | S 10 to 15 kt, rising to 15 to 20 kt this afternoon. |
| Waves | W 9 ft at 13 seconds. Rain. A slight chance of thunderstorms this afternoon. | |
| Tonight | Wind | SW 15 to 20 kt. |
| Waves | S 6 ft at 6 seconds and W 8 ft at 12 seconds. Rain. |
The coastal waters forecast from Cape Mendocino to Point Arena and out to 10 nautical miles.
| Today | Wind | S 10 to 15 kt. |
| Waves | W 9 ft at 13 seconds. Rain.. | |
| Tonight | Wind | S 10 to 15 kt. |
| Waves | S 5 ft at 5 seconds and W 8 ft at 12 seconds. Rain. |
Lastly, here are the solar and lunar phases and tidal information :
Today Tuesday, 16th of December of 2025, the sun rose in Shelter Cove at 7:31am and sunset will be at 4:52pm, for a total of 9 hours and 20 minutes of sunlight.
The next LOW tide will be at 3:29pm, at 0.2ft, and the following HIGH tide will be at 10:09pm at 4.5ft.
Today the waning crescent moon rose in the southeast at 4:39 am and will set in the southwest at 2:20 pm.
According to the solunar theory, today is an average day for fishing, the fish activity forecast is average.