Weather in Costa Mesa — today, tomorrow and 14-day forecast
Weather in Costa Mesa now: +27°, clear, wind 5.8 m/s, humidity 76%. Accurate forecast for today, tomorrow, 3 days and 2 weeks — temperature, precipitation, pressure and wind.
Weather in Costa Mesa now
Hourly forecast for today in Costa Mesa
Weather in Costa Mesa tomorrow
From +21° to +27° — day and night.
Weather in Costa Mesa for 3 days
From +20° to +29° — day and night.
Weather in Costa Mesa for the week
Including the 5-day outlook.
From +19° to +29° — day and night.
Weather in Costa Mesa for 2 weeks
Including the 10-day outlook.
From +19° to +32° — day and night.
Weekend weather in Costa Mesa
Weather for the weather-sensitive
📒 Weather diary in Costa Mesa
Ready-made observation table for August: past days are already filled in with weather-station data — for school and beyond. Open the diary →
What to do in Costa Mesa in weather like this 🎯
The Moon today 🌙
Costa Mesa, Kaliforniya, United States. Population 113 204.
Precipitation map 🌧️
Cities near Costa Mesa 📍
FAQ about weather in Costa Mesa ❓
What's the weather in Costa Mesa right now?
Now +27°, clear, wind 5.8 m/s, W, humidity 76%. Feels like +28°.
What's the weather in Costa Mesa tomorrow?
Tomorrow: +27° by day, +21° at night, overcast.
Sunrise and sunset in Costa Mesa?
Sunrise 05:15, sunset 18:38, day length 13h 23m.
What's the pressure and humidity in Costa Mesa?
Pressure 762 mmHg, humidity 76%, wind 9 m/s. Matters for weather-sensitive people.
Do I need an umbrella in Costa Mesa today?
No, precipitation is unlikely — you can go out without an umbrella.
Do I need sunscreen in Costa Mesa?
Yes, the UV index is 11 — high. Use SPF 30+, especially for children; no more than 20-30 minutes in direct sun unprotected.
Is it a good day for a picnic in Costa Mesa?
Yes, it’s warm and dry (up to +28°) — a good time for a picnic, a walk or a barbecue.
How long is it safe to stay in the sun in Costa Mesa?
At UV 11, no more than 20–30 minutes unprotected; longer with SPF 30+ and shade.
Is it a good day to wash the car in Costa Mesa?
No precipitation expected — a good time to wash the car; rain won’t spoil it in the coming hours.
Is it good weather for a walk or a bike ride in Costa Mesa?
Yes, dry and comfortable (up to +28°) — great for a walk, a bike ride or a run.
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Weather in Costa Mesa — in detail
Weather in Costa Mesa from “Pogoda 1” — an accurate, free forecast: current temperature, feels-like, wind, atmospheric pressure, humidity and precipitation. Available for today, tomorrow, 3, 5 and 10 days, a week, 2 weeks and a month, plus hourly weather, monthly climate, water temperature, air quality and an observation archive since 2017.
To quickly check the weather in Costa Mesa anytime, add the city to favorites — and get a daily forecast by email at 17:00 (Moscow time). Note: the forecast may be refined as new data arrives. Data: OpenWeather, Open-Meteo, met.no.