County in California

Riverside County Väder Prognos

Riverside County weather: 18°C, klart. Varje timme forecast, 14-day outlook, UV, air quality and the best time och visit.

🌙 18°C now🕔 3:24 AM local📅 Best: april, maj, juni, juli, augusti, september and oktober👥 2.5 million

Sammanfattning

Riverside County is a county in California. Riverside County is a county in the United States. Befolkningen är cirka 2.5 million.

Just nu är det 18°C (65°F) in Riverside County med klart. Det känns som 20°C. I dag varierar temperaturen mellan 17°C och 31°C. Risken för nederbörd är 0%. Sightseeing conditions score 9.9/10 - utmärkt — åk nu.

Bästa tiden att besöka Riverside County is april, maj, juni, juli, augusti, september and oktober. Klimatet är Mediterranean. januari, februari and december tend och be the least comfortable months. augusti is the warmest month med average highs near 36°C, while januari is the coldest med lows near 7°C.

The closest major airport is Los Angeles International Airport (LAX), about 93 km away. Nearby highlights include Disneyland Resort, Hollywood Sign, Santa månica State Beach and Anza-Borrego Desert State Park.

Enkelt förklarat. Today is slightly cooler than average for september. The forecast high of 31°C is 1.6°C below the 32°C typical for this month. The best window och be outside is roughly 8 AM och 11 AM, when temperature, rain chance and wind line up best. sightseeing is the strongest bet in Riverside County today at 9.9/10. No weather-related travel disruption is expected today. Roads and airports should run normally.

Compiled from this page's own data: atlas facts plus live Open-Meteo readings.

Vädret i Riverside County just nu

🌙
18°C
Klart · feels like 20°C
Luftfuktighet88%
Vind3 km/h ESE
Vindbyar3 km/h
UV-index0 · Låg
Molntäcke16%
Lufttryck979 hPa
SiktGood · 16 km
Luftkvalitet52 · Måttlig
Soluppgång6:33 AM
Solnedgång6:55 PM
Måne🌒 Waxing crescent · 14%

Open-Meteo Updated 3:24 AM, sep 15 local time.

Se prognosen för Riverside County per tidsintervall

Nästa 24 timmar

Temperatur, nederbörd och vind timme för timme.

4 AM🌙18°0%3 km/h
5 AM🌙17°0%2 km/h
6 AM🌙17°0%2 km/h
7 AM🌤️17°0%3 km/h
8 AM☁️19°0%3 km/h
9 AM20°0%1 km/h
10 AM☀️22°0%3 km/h
11 AM☀️25°0%5 km/h
12 PM☀️27°0%7 km/h
1 PM☀️29°0%9 km/h
2 PM☀️30°0%9 km/h
3 PM☀️31°0%16 km/h
4 PM☀️29°0%21 km/h
5 PM☀️27°0%20 km/h
6 PM☀️25°0%16 km/h
7 PM🌙23°0%9 km/h
8 PM🌙21°0%7 km/h
9 PM🌙21°0%6 km/h
10 PM🌙20°0%5 km/h
11 PM🌙20°0%6 km/h
12 AM☁️20°1%6 km/h
1 AM☁️20°1%4 km/h
2 AM☁️20°1%3 km/h
3 AM☁️20°1%1 km/h

16-day forecast for Riverside County

Max / Min; Nederb.; UV

DagFörhållandenMax / MinNederb.VindUV
tis, sep 15☁️ Mulet31° / 17°0%21 km/h7
ons, sep 16☁️ Mulet25° / 18°1%19 km/h7
tor, sep 17☀️ Klart31° / 20°0%21 km/h7
fre, sep 18☀️ Klart30° / 21°0%17 km/h7
lör, sep 19🌤️ Mest klart33° / 22°0%17 km/h7
sön, sep 20☁️ Mulet32° / 23°0%19 km/h7
mån, sep 21☀️ Klart29° / 21°0%20 km/h7
tis, sep 22☀️ Klart31° / 20°1%17 km/h7
ons, sep 23☁️ Mulet35° / 23°4%20 km/h7
tor, sep 24☁️ Mulet33° / 24°8%16 km/h7
fre, sep 25☀️ Klart30° / 22°4%18 km/h7
lör, sep 26⛅ Delvis molnigt27° / 19°6%17 km/h7
sön, sep 27☁️ Mulet29° / 20°6%17 km/h7
mån, sep 28☀️ Klart33° / 21°11%18 km/h7
tis, sep 29☀️ Klart32° / 23°9%19 km/h7
ons, sep 30☀️ Klart-- / --6%--

Klimat in Riverside County month by month

Average high, average low and total rainfall, based on three years of reanalysis data.

janfebmaraprmajjunjulaugsepoktnovdecLine: average high · Bars: rainfall
MånadAvg highAvg lowRegnfallRating
januari19°45 mm★★★★
februari20°115 mm★★★☆☆
mars23°10°59 mm★★★★
april24°11°20 mm★★★★★
maj27°13°5 mm★★★★★
juni32°16°0 mm★★★★★
juli35°19°3 mm★★★★★
augusti36°20°1 mm★★★★★
september32°18°24 mm★★★★★
oktober29°14°14 mm★★★★★
november23°10°55 mm★★★★
december21°39 mm★★★★

Klimat type: Mediterranean. Källa: Open-Meteo archive (ERA5).

Väder map for Riverside County

Animated model layers. Pick a layer och load it.

Loading map…

Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.

Luftkvalitet and pollen in Riverside County

52
Måttlig
Unusually sensitive people should limit long outdoor exertion.
PM2.515 µg/m³
PM1017.5 µg/m³
Ozone27 µg/m³
NO₂32.4 µg/m³
UV-index0 · Låg
Airborne hazeKlart air

Luftkvalitet: Open-Meteo (CAMS). US AQI scale.

sön, twilight and moon

Soluppgång6:33 AM
Solnedgång6:55 PM
Daglight12h 22m
Solar noon12:44 PM
Golden hour (am)6:33 AM - 7:33 AM
Golden hour (pm)5:55 PM - 6:55 PM
Blue hour (am)6:03 AM - 6:33 AM
Blue hour (pm)6:55 PM - 7:25 PM
Måne phase🌒 Waxing crescent · 14%
Månerise11:05 AM
Måneset9:25 PM

Golden and blue hour are the standard photographic approximation around sunrise and sunset.

Bästa tiden att besöka Riverside County

Go in april, maj, juni, juli, augusti, september and oktober. These months score highest on comfortable temperatures, low rainfall and useful daylight.

Hardest months: januari, februari and december - expect the least comfortable mix of heat, cold or rain.

januari★★★★
februari★★★☆☆
mars★★★★
april★★★★★
maj★★★★★
juni★★★★★
juli★★★★★
augusti★★★★★
september★★★★★
oktober★★★★★
november★★★★
december★★★★

Explore Riverside County

Every topic we hold for this place, and the same topic for the places around it.

Väder for related places

Frequently asked questions

Where is Riverside County?

Riverside County is a county in California. Its coordinates are 33.9533, -117.3961. It lies in Nordamerika.

What is the weather like in Riverside County just nu?

It is currently 18°C (65°F) med klart. Luftfuktighet is 88% and wind is 3 km/h.

When is the best time och visit Riverside County?

april, maj, juni, juli, augusti, september and oktober offer the most comfortable conditions in Riverside County, which has a Mediterranean climate. januari, februari and december are usually the hardest months for outdoor plans.

What time zone is Riverside County in?

Riverside County observes America/Los_Angeles (UTC-07:00). The local time is 3:24 AM.

How many people live in Riverside County?

Riverside County has a population of approximately 2.5 million.

What is the nearest airport och Riverside County?

The closest airports are Los Angeles International Airport (LAX), 93 km away, San Diego International Airport (SAN), 137 km away and Harry Reid International Airport (LAS), 313 km away.

What are the top things och do in Riverside County?

Popular options include Disneyland Resort, Hollywood Sign, Santa månica State Beach, Anza-Borrego Desert State Park, Joshua Tree National Park and Coronado Beach.

Related articles

Data sources and methodology

Place dataUSPOTUS Atlas dataset (us-counties) - coordinates, hierarchy and facts.
Prognos and observationsOpen-Meteo (ECMWF and national models).
Luftkvalitet and pollenCopernicus CAMS via Open-Meteo. US AQI scale.
Klimat averagesERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years.
Official alertsUS National Väder Service.
MethodScores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown.

Last updated september 15, 2026 at 3:24 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.

Davil Hofile
Written byWriter at USPOTUS

Davil Hofile is a writer at USPOTUS covering breaking news, NFL updates, viral stories, entertainment, pets, and lifestyle. He specializes in transforming complex news into clear, trustworthy, and engaging articles that help readers quickly understand what's happening across the United States. His reporting follows Google's E-E-A-T guidelines, emphasizing accuracy, credible sources, and practical value for readers.

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