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Delaware

Delaware 1
Travel guide
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Travel guide
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Best time to visit Delaware

Data source:Meteostat
Last updated:2025-09

Weather in Delaware throughout the year

  • Spring (March–May): Average 9.2–18.1°C, climate transitions from cold to warm, March has more rainfall, April starts to become dry. Common activities: Outdoor walks, flower viewing. Suggested clothing: Light jacket, long-sleeved shirt, and rain gear in March.
  • Summer (June–August): Average 23.1–26.4°C, hot and dry, less rainfall. Common activities: Beach activities, outdoor picnics. Suggested clothing: Light and breathable clothing, sun hat, sunscreen.
  • Autumn (September–November): Average 10.1–21.1°C, temperature gradually decreases, September has more rainfall, then becomes dry. Common activities: Maple leaf viewing, outdoor hiking. Suggested clothing: Comfortable jacket, long-sleeved shirt.
  • Winter (December–February): Average 4.0–5.9°C, cold and humid, more rainfall. Common activities: Indoor activities, museum visits. Suggested clothing: Warm jacket, hat, scarf, gloves.

Weather in Delaware

Annual average temperature: approx. 15°C / Annual rainfall: approx. 801 mm / Summer humidity: 60%–70% / Rainiest month: March

Delaware weather by month

Month
Temperature (°C)
Rainfall (mm)
January
4°C
138.1
February
5.9°C
60.5
March
9.2°C
166.5
April
14.3°C
43.8
May
18.1°C
0
June
23.1°C
0
July
26.4°C
0
August
24.7°C
42.2
September
21.1°C
113.8
October
14.9°C
34.9
November
10.1°C
46.6
December
5.4°C
155.3

7-day weather forecast for Delaware

10/30
Friday
Sunny
22.8°C/12.3°C
10/31
Saturday
Partly Cloudy
14.6°C/8.4°C
11/1
Sunday
Overcast
15.7°C/8.2°C
11/2
Monday
Overcast
18°C/8.1°C
11/3
Tuesday
Overcast
20.3°C/9°C
11/4
Wednesday
Sunny
20.9°C/13.2°C
11/5
Thursday
Light rain shower
21.8°C/14.8°C