Weather & Tides-May 30, 2025

NATIONAL WEATHER SERVICE REPORT 

Friday, May 30th  2025

SYNOPSIS: Hot conditions will peak Friday and Saturday with gusty winds along the coast by Sunday afternoon. Generally warm and dry conditions will continue through the start of June.

In Humboldt and Mendocino Counties, grass pollen counts are high. 

TODAY: 

Inland: Sunny, with a high near 97. Calm wind becoming north around 5 mph in the afternoon.

Along the Coast: Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 63. West northwest wind 3 to 8 mph.

TONIGHT:  

Inland: Clear, with a low around 53. Light north wind.

Along the Coast:  Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 63. West northwest wind 3 to 8 mph.

Extended Forecast: A strong ridge of high pressure is bringing clear skies and intense heat to interior areas, with temperatures likely exceeding 100°F today, particularly in places like Ukiah and the Trinity River Valley. Coastal regions will remain much cooler due to a shallow marine layer and strong sea breezes. By Sunday, a mid-level trough offshore will create a strong coastal pressure gradient, driving powerful north winds—especially along exposed ridges and headlands. Although there’s a slight chance for thunderstorms as moisture moves in, but the probability remains low, with warm and dry conditions expected into early June.

Predicted Temperatures

Location	High Today	Low Tonight	HighTomorrow
Inland	97	53	91
Along The Coast	63	49	63

The coastal waters forecast from Point Saint George to Cape Mendocino and out to 10 nautical miles.

GALE WATCH IN EFFECT FROM SATURDAY EVENING THROUGH MONDAY MORNING

Today	Wind	N 5 to 10 kt, becoming NW 10 to 15 kt this afternoon.
	Waves	N 5 ft at 7 seconds and W 5 ft at 12 seconds. Patchy fog this morning.
Tonight	Wind	N 5 to 10 kt.
	Waves	NW 5 ft at 7 seconds and W 4 ft at 11 seconds.

The coastal waters forecast from Cape Mendocino to Point Arena and out to 10 nautical miles. 

GALE WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH MONDAY MORNING

Today	Wind	NW 10 to 15 kt, rising to 15 to 20 kt this afternoon.
	Waves	NW 6 ft at 7 seconds and W 4 ft at 12 seconds.
Tonight	Wind	NW 15 to 20 kt.
	Waves	N 7 ft at 7 seconds and W 4 ft at 12 seconds.

Lastly, here are the solar and lunar phases and tidal information : Today, Friday,  May 30th, the sun rose in Shelter Cove at 5:50am and sunset will be at 8:39pm, for a total of 14 hours and 48 minutes of sunlight. The next low tide will be at 8:27 pm.  The next high tide will be at 3:55 pm.  The waxing crescent moon set at 12:00 am in the northwest. Eventually, the moon will rise again in the northeast at 9:15 am. According to the solunar theory, today is an average day for fishing, the fish activity forecast is average.