Weather on August 20 at Channel Islands

Channel Islands National Park

CAPacific West
Avg High87°F
Avg Low55°F
Warmest198684°F
Coldest199157°F

Based on 55 years of data from Ventura, CA

Planning Your Visit

August 20th in Channel Islands National Park (via Ventura, CA) typically brings warm summer weather, with average highs around 87°F and lows near 55°F — a 32°F daily swing. Over 55 years of records, the warmest August 20th was in 1986 (84°F average), while the coldest was 1991 (57°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 2% of August 20th dates historically. The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.

The last decade has been 3.2°F warmer on this date compared to 20-30 years ago.

Planning for August 20th in Channel Islands? Stay hydrated and seek shade during peak afternoon hours.

Year by Year History

YearHighLowPrecipSnow
202591°F51°F0"--
202496°F48°F0"--
202387°F64°F0"--
202296°F54°F0"--
202179°F51°F0"--
2020102°F60°F0"--
201987°F50°F0"--
201893°F58°F0"--
201786°F59°F0"--
201692°F50°F0"--
201585°F54°F0"--
201484°F60°F0"--
201395°F53°F0"--
201288°F63°F----
201175°F55°F----
201090°F57°F----
200982°F50°F----
200881°F57°F----
200791°F55°F----
200679°F50°F----
200584°F54°F----
200481°F55°F----
200384°F57°F----
200270°F55°F----
200182°F54°F----
200082°F54°F----
199995°F50°F0"0"
199889°F50°F0"0"
199790°F65°F0"0"
199689°F51°F0"0"
199590°F54°F0"0"
199490°F58°F0"0"
199386°F52°F0"0"
199299°F63°F0"0"
199179°F36°F0"0"
199079°F53°F0"0"
198976°F52°F0"0"
198875°F59°F0"0"
198785°F50°F0"0"
198699°F70°F0"0"
198585°F48°F0"0"
198484°F62°F0"0"
198379°F60°F0.18"0"
1982100°F61°F0"0"
198196°F49°F0"0"
198080°F48°F0"0"
197976°F62°F0"0"
197877°F56°F0"0"
197796°F65°F0"0"
197686°F56°F0"0"
197580°F51°F0"0"
197481°F51°F0"0"
1973100°F61°F0"0"
197290°F52°F0"0"
197188°F58°F0"0"

August 20 at Nearby Parks

Holiday Weather at Channel Islands

Official NPS WebsiteVisit nps.gov/chis for park information, alerts, and reservations

Explore More at Channel Islands

See historical weather for other dates

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