Monterey weather in April

April in Monterey: nice, dry, with clean air — a great time to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

Monterey🇺🇸 United States · California · Beach79
  1. 62Jan
  2. 70Feb
  3. 72Mar
  4. 79Apr
  5. 81May
  6. 84Jun
  7. 85Jul
  8. 87Aug
  9. 88Sep
  10. 83Oct
  11. 73Nov
  12. 63Dec

#7 of 12 months in Monterey · #682 of 1413 destinations to visit in April · comfort 79/100 (tier B)

Days
17°C
Nights
9°C
Wet days
3
Sun
11 h
Humidity
80%
Daylight
13 h
Monterey, United States
Photo: Catalinaschool · CC BY 4.0

Traveller notes on Monterey in April

Other months in Monterey

Regulars are specific this month splits into two real halves - the first typically sunny and warm, an Indian-summer stretch some years pushing into the 80s Fahrenheit, while the second cools off with a real chance of fog rolling in or light-to-moderate rain, though genuine rain stays rare this early. Our row backs that mild, genuinely dry read, 21C over 11.6C nights, with rain minimal at 13.9mm across just 1.4 days and humidity at 77 percent. Regulars are consistent this counts among the sunniest months on the coast overall despite the back-half cooling, layers the standard advice for a day that can swing from warm sun to fog. The sea sits at a cold 15.4C, bracing for most swimmers regardless of the air temperature. The record: 9.8 hours of sun, an 11.8 kph wind and AQI 35.
FirstHalfSunnySecondHalfFogOrLightRain · October · 1 month ago · Read more on Tripadvisor ↗
Regulars name this June Gloom, a thick marine layer that can sit overcast and foggy all day some visits or burn off to a beautiful afternoon on others - not the low, visibility-restricting kind of fog but more like a persistent cloud ceiling, genuinely unpredictable day to day. Our row backs the cool, damp read that fog implies, 18.9C over 11.3C nights, with rain essentially absent, 0.4mm across under a day, and 81 percent humidity from the marine air rather than rain itself. Regulars are split on how much it bothers them - one calls it thoroughly depressing given blue sky is visible just a few miles inland, while most say layering appropriately makes it a non-issue with plenty to do regardless. The sea stays cold at 14.4C. The record: 13.2 hours of sun, a 14.8 kph wind and AQI 36.
GloomBurnsOffSomeDaysNotOthers · June · 1 month ago · Read more on Tripadvisor ↗
Monterey-forum threads on December weather are candid that it swings between genuinely lovely and properly rainy with little warning, chilly regardless of which version shows up, especially right on the water. Posters describe the appeal both ways: a clear day delivers brilliantly sunny conditions that regulars call some of the best sunset light of the year, while a stormy stretch brings dramatic cloud formations and crashing waves some visitors find just as compelling. Coastal storms are described as short-lived, typically a day or so before clearing. The clear upside is thinner crowds than summer, giving spots like Cannery Row and the aquarium a calmer feel. The record: 15.9C days feeling like 14C, 7.3C nights, 76mm across 7 days, a 13.7C sea, 78 percent humidity and 7.1 hours of sun.
CannerySeaRowDecemberRegular · December · 1 month ago · Read more on Tripadvisor ↗
July is one of Monterey's two foggiest months, and the forum is blunt about what that means: fog on roughly half the days, several days in a row without sun entirely possible, and a pattern of foggy mornings clearing around ten and the fog returning in the afternoon. Pacific Grove, Carmel and Pebble Beach get it worst. The temperature stays mild inside it - 65 to 75F, our row's 19.2C at 82 percent humidity - which is why layers is the whole advice. The escape is a short drive: five miles inland is about 20 degrees warmer under a cloudless sky. Our row records no precipitation days at all in July, which is the point - this is fog, not rain. The record: 12.3C nights, 13 hours of sun and a 13.9C sea.
FiveMilesInlandIsTwentyDegrees · July · 1 month ago · Read more on Tripadvisor ↗

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Monterey climate normals — April

Daytime high17°C / 62°F😎 nice
Nighttime low9°C / 48°F
Feels like (high)16°C / 61°F
Sea temperature11°C / 52°F🥶 cold sea
Rainfall21 mm / 0.8 in☀️ dry
Rainy days3 days
Humidity80%💦 very humid
Dew point8°C / 47°F
Sunshine11 h/day
Daylight13.2 h
Wind15 km/h / 10 mph
Air quality (US AQI)41🍃 good

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in Monterey in April

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

Shoulder seasonan ordinary month(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for Monterey's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Fair weatherMonterey's weather peaks July–September.

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Best weatherFair weatherToughest weather

What's on in Monterey in April

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • Nature

    Gray whale migration

    15 Dec – 10 May · usuallyWhale season

    Grays head south past the bay from Christmas and back north with calves from mid-February to May, hugging the shore because the submarine canyon brings deep water close in. Humpbacks take over for the summer.

What's on around the world in April →

Nearby, and something's on

Within 300 km of Monterey — a day trip or a short hop — with something on this month. Never part of the comfort score.

Where is Monterey?

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Monterey in April — FAQ

Is April a good time to visit Monterey?
April in Monterey: nice, dry, with clean air — a great time to visit. It ranks #7 of 12 months for Monterey on SeasonMap's comfort score (79/100).
What is the weather like in Monterey in April?
In April, Monterey averages a daily high of 16.5°C and a low of 9.1°C, with about 20.6 mm of rain over roughly 3.1 rainy days.
What is the air quality in Monterey in April?
Monterey has a mean US Air Quality Index of about 41 in April.

Within 300 km: Big Sur's Coastal wildflowers around 15 Feb – 15 May, and Santa Cruz, California's Gray whale migration around 15 Dec – 15 Apr.