Live Weather & Forecast
Weather in Castine
Maine, United States · Real-time conditions & 3-day outlook
8°C
Feels like 5°C
47°F / Feels 42°F
Light rain
Castine, Maine
🌞 Daytime
Updated: 2026-04-13 14:15
Humidity
93%
Wind
19.1 km/h SSW
Wind Gust
30.3 km/h
Pressure
1010 mb
Visibility
11 km
UV Index
2
(Low)
Precipitation
0 mm
Cloud Cover
100%
Dew Point
8.7°C
Wind Degree
201°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
186.9 μg/m³
NO₂
7.5 μg/m³
O₃
97 μg/m³
SO₂
2.7 μg/m³
PM 2.5
7.6 μg/m³
PM 10
8.6 μg/m³
Today's Hourly Forecast
24-hour breakdown for Castine, Maine
12 AM
5°
Patchy rain nearby
1 AM
5°
Clear
2 AM
5°
Clear
3 AM
4°
Patchy rain nearby
4 AM
4°
Patchy rain nearby
5 AM
4°
Patchy light rain
6 AM
4°
Light rain
7 AM
5°
Light rain
8 AM
6°
Light rain
9 AM
6°
Patchy rain nearby
10 AM
7°
Overcast
11 AM
8°
Overcast
12 PM
9°
Partly Cloudy
1 PM
10°
Sunny
2 PM
8°
Light rain
3 PM
10°
Patchy rain nearby
4 PM
10°
Patchy rain nearby
5 PM
10°
Patchy rain nearby
6 PM
10°
Patchy rain nearby
7 PM
9°
Mist
8 PM
9°
Mist
9 PM
9°
Clear
10 PM
11°
Clear
11 PM
12°
Clear
3-Day Forecast
Daily overview for Castine, Maine
Today
Moderate rain
10°
/
4°
🌧️ 86% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 35.3 km/h
🌧️ Total precip: 7.11 mm
☀️ UV Index: 0.7
🌅 Sunrise: 05:55 AM
🌇 Sunset: 07:18 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Moderate rain
13°
/
4°
🌧️ 82% chance of rain
💧 Avg. humidity: 81%
💨 Max wind: 19.8 km/h
🌧️ Total precip: 7.5 mm
☀️ UV Index: 1.4
🌅 Sunrise: 05:53 AM
🌇 Sunset: 07:19 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Moderate rain
15°
/
4°
🌧️ 88% chance of rain
💧 Avg. humidity: 91%
💨 Max wind: 10.1 km/h
🌧️ Total precip: 14.89 mm
☀️ UV Index: 0.7
🌅 Sunrise: 05:51 AM
🌇 Sunset: 07:20 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Castine
Plan your trip to Castine, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Castine?
Current conditions in Castine: Light rain, temperature 8°C, humidity 93%.
What is the best time to visit Castine?
The best time to visit Castine is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Castine?
Castine is located at approximately 44.4° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Castine?
The wettest period in Castine is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Castine?
For visits to Castine during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Castine in?
Castine is located in United States, in the state of Maine.
What are the public holidays in Castine in 2026?
View the 2026 public holidays for Castine on our Holidays page.
What are the GPS coordinates used for the weather forecast in Castine?
The weather forecast for Castine uses coordinates 44.3878, -68.7966.