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coastya
Satellite view of Moonstone Beach; the pin marks the beach
Satellite view: Sentinel-2 cloudless · EOX, CC BY 4.0, colour-adjusted by Coastya. About 6 km of coast; the pin marks the beach.

Beach

Moonstone Beach

United StatesCalifornia · United States · Pacific Ocean

35.5750, -121.1138 · Cambria, 3 km

  • 16°Sea · September
  • 20°High · September
  • 10.1 hSunshine · June
The dot marks Moonstone Beach. About 140 km of coast, north at the top.

Your month at the beach

Moonstone Beach in October

  • 19°CAir, daytime high14°C at night
  • 15°CSea temperature
  • 7.4 hSunshine a day
  • 2 daysRainy days in the month20 mm in total
  • 14 km/hAverage wind

Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.

The beach itself

  • 42Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
  • 57 kmAirport: San Luis County Regional Airport (SBP)In a straight line; by road it is further

No reliable information yet on: bathing water quality, wheelchair access, lifeguards.

October from 2020 to 2025

In October 2025 the sea averaged 15.3 °C — about the same as the 1991–2020 average.

Sea temperature 2025: ±0.0 °C

1991–2020 average: 15.3 °C

Air, daytime high 2025: −0.3 °C

1991–2020 average: 19.0 °C

Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.

When to go

1991–2020 averages
Warmest seaAugust and September16 °CThe sea stays below 18 °C all year here.
Most sunshineMay and June10 h of sun a day
Least rainJuly and August2 mm in the month

The year at a glance

  1. Jan13°6 h74 mm
  2. Feb13°7 h72 mm
  3. Mar13°8 h57 mm
  4. Apr12°9 h25 mm
  5. May12°10 h13 mm
  6. Jun13°10 h4 mm
  7. Jul15°8 h2 mm
  8. Aug15°8 h2 mm
  9. Sep16°8 h4 mm
  10. Oct15°7 h20 mm
  11. Nov15°7 h34 mm
  12. Dec14°6 h80 mm
8°C20°C32°C

Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.

Sea temperature

1991–2020 averages
12°14°16°JanFebMarAprMayJunJulAugSepOctNovDecJan: 13°Feb: 13°Mar: 13°Apr: 12°May: 12°Jun: 13°Jul: 15°Aug: 15°Sep: 16°Oct: 15°Nov: 15°Dec: 14°16°12°
8°C20°C32°C

Climate through the year

1991–2020 averages
10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecJan: 12 °C (High 14° / Low 10°)Feb: 12 °C (High 14° / Low 10°)Mar: 13 °C (High 15° / Low 10°)Apr: 13 °C (High 15° / Low 10°)May: 14 °C (High 16° / Low 12°)Jun: 15 °C (High 18° / Low 13°)Jul: 17 °C (High 19° / Low 14°)Aug: 17 °C (High 20° / Low 15°)Sep: 18 °C (High 20° / Low 15°)Oct: 16 °C (High 19° / Low 14°)Nov: 14 °C (High 17° / Low 12°)Dec: 12 °C (High 14° / Low 10°)18°12°
AverageLow – High
8°C20°C32°C

Rain

0 mm25 mm50 mm75 mmJanFebMarAprMayJunJulAugSepOctNovDecJan: 74 mmFeb: 72 mmMar: 57 mmApr: 25 mmMay: 13 mmJun: 4 mmJul: 2 mm2Aug: 2 mmSep: 4 mmOct: 20 mmNov: 34 mmDec: 80 mm80

Sunshine

0 h5 h10 hJanFebMarAprMayJunJulAugSepOctNovDecJan: 6.1 hFeb: 6.8 hMar: 8.0 hApr: 9.4 hMay: 9.9 hJun: 10.1 h10.1Jul: 8.1 hAug: 7.5 hSep: 8.0 hOct: 7.4 hNov: 6.7 hDec: 5.5 h5.5

Sunshine hours are estimated from measured solar radiation, not observed directly.

Month by month

1991–2020 averages

Every month at Moonstone Beach: air, sea, rain and sunshine. Averages for 1991–2020.

Every month at Moonstone Beach: air, sea, rain and sunshine. Averages for 1991–2020.
MonthHigh°CLow°CSea°CRainmmRainy daysdaysSunshineh/dayWindkm/h
January1410137496.115
February14101372106.816
March1510135788.016
April1510122549.417
May1612121329.918
June1813134110.117
July191415208.114
August201515207.515
Septemberwarmest sea201516418.014
October1914152027.414
November1712153456.714
December1410148095.515

Swipe sideways to see the other columns.

Photos

Photos shared by their authors on Wikimedia Commons, with its colours adjusted.

Moonstone Beach: Moonstone Beach Side View
Photo: Jar965 · Wikimedia Commons · CC BY-SA 4.0 · stylised; this version keeps the same licence.
Moonstone Beach: Mazzaella splendens, Iridescent (or rainbow) seaweed
Photo: Peter D. Tillman · Wikimedia Commons · CC BY-SA 3.0 · stylised; this version keeps the same licence.
Moonstone Beach: Cambria, California
Photo: Tatianafri · Wikimedia Commons · CC BY-SA 4.0 · stylised; this version keeps the same licence.

About these numbers

Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.

WhatWhere it comes from Nearest measurement
Air, rain and sunshineNASA POWER15 km away
Sea temperatureNOAA OISST v2.1, 1991–20206 km away
2020–2025, month by monthNASA POWER · NOAA OISST v2.115 km away
Lifeguards and places to stayOpenStreetMapwithin 1–5 km
Nearest airportOurAirportsstraight-line distance
Image at the topSentinel-2 cloudless (EOX)at this spot

See every data source →