Early autumn · Weather & things to do
Monterey & Carmel in September
Monterey & Carmel's warmest month brings highs averaging 69°F (21°C), lows of 56°F (14°C) and about 0.2 in (5 mm) of rain.
At 100/100 for comfort (4th of 12), it's one of the best months to visit.
- Avg high
- 69°F (21°C)
- Avg low
- 56°F (14°C)
- Rain
- 0.2 in (5 mm)
- Humidity
- 80%
- Cloud cover
- 26%
- Daylight
- ~12 h 13 min
- Comfort score
- 100/100 · Great
What September feels like
Days are mild at around 69°F (21°C): comfortable for walking all day, with a layer for the evening.
Nights cool to an average low of 56°F (14°C).
Rain is scarce: about 0.2 in (5 mm) for the whole month.
Clear skies are common, with cloud cover averaging only 26%.
Plan around September
September is one of Monterey & Carmel's best months on the climate data.
- Comfort holds steady from August (100 → 100/100).
- September sits inside the Apr – Oct window our Pacific Coast Highway route recommends.
What to pack for September
- A warm layer for eveningsnights drop to 56°F
- Comfortable walking shoesmost picks involve some walking
What to do in Monterey & Carmel in September
September is good outdoor weather here, so these picks lean toward the open air.
Cannery Row
Former sardine-cannery street from Steinbeck's novel, now waterfront shops and restaurants.
Why now September scores 100/100 for comfort, good conditions for being outside.
17-Mile Drive
Toll road through Pebble Beach past the Lone Cypress, Bird Rock and golf links.
Why now Highs near 69°F and 0.2 in of monthly rain make this an easy outdoor pick.
Hog's Breath Inn
Courtyard pub once owned by Clint Eastwood, with fire pits and murals.
Carmel Beach
White-sand beach at the foot of Ocean Avenue with cypress-framed sunsets.
Why now One to do outside while the weather is on your side.
Monterey Bay Aquarium
Kelp forest tank, sea otters and open-ocean exhibits on the edge of the bay.
Nearby in September
- Big Sur in September~23 mi · highs 69°F, 0.2 in rain · similar daytime temperatures, about as wet
- San Simeon in September~75 mi · highs 64°F, 0.2 in rain · 3°C (6°F) cooler by day, about as wet
- San Francisco in September~86 mi · highs 74°F, 0.2 in rain · 3°C (5°F) warmer by day, about as wet
- Sonoma in September~121 mi · highs 88°F, 0.1 in rain · 11°C (19°F) warmer by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Monterey & Carmel in September: quick answers
Is September a good time to visit Monterey & Carmel?
Yes. On the climate data it's one of the best months, scoring 100/100. Expect highs of 69°F (21°C) and 0.2 in (5 mm) of rain. September is inside the Apr – Oct window our Pacific Coast Highway route recommends.
How hot is Monterey & Carmel in September?
Average highs are 69°F (21°C) and average lows 56°F (14°C), making it the warmest month by daytime highs.
Does it rain a lot in Monterey & Carmel in September?
Not much: about 0.2 in (5 mm) of rain falls across September on average, the 4th-driest month of the year. The annual total is about 18.9 in (480 mm).
What should I pack for Monterey & Carmel in September?
Bring a warm layer for evenings (nights drop to 56°F) and comfortable walking shoes (most picks involve some walking).
More on Monterey & Carmel
Routes in season in September
- Pacific Coast Highway Apr – Oct
Planning Monterey & Carmel in September?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.