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Sea Temperature in Castine in May
Complete information on the sea temperature range in the Atlantic Ocean in Castine in May. Historical daily data. Climate details for May. Tips on swimming conditions and beach relaxation in Castine. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Castine in May
5°C
MINIMUN
7.5°C
AVERAGE
10°C
MAXIMUM
Historical Data of Water Temperature in May in Castine
Water Temperature Chart for Atlantic Ocean in Castine in May
Sea Temperature Table in Castine in May Over the Past Years
| Day | 2024 | 2023 | 2022 | Average |
|---|---|---|---|---|
| May 1 | 6°C | 6°C | 9°C | 6.5°C |
| May 2 | 6°C | 6°C | 6°C | 6.0°C |
| May 3 | 6°C | 6°C | 6°C | 6.0°C |
| May 4 | 6°C | 6°C | 6°C | 6.0°C |
| May 5 | 7°C | 6°C | 7°C | 6.5°C |
| May 6 | 7°C | 6°C | 9°C | 7.0°C |
| May 7 | 7°C | 6°C | 7°C | 6.5°C |
| May 8 | 7°C | 7°C | 8°C | 7.0°C |
| May 9 | 7°C | 7°C | 9°C | 7.5°C |
| May 10 | 7°C | 7°C | 6°C | 6.8°C |
| May 11 | 7°C | 6°C | 8°C | 7.0°C |
| May 12 | 7°C | 7°C | 7°C | 7.0°C |
| May 13 | 8°C | 7°C | 6°C | 7.3°C |
| May 14 | 8°C | 7°C | 5°C | 7.0°C |
| May 15 | 8°C | 7°C | 6°C | 7.3°C |
| May 16 | 8°C | 7°C | 5°C | 7.0°C |
| May 17 | 9°C | 8°C | 7°C | 8.0°C |
| May 18 | 9°C | 8°C | 9°C | 8.8°C |
| May 19 | 9°C | 8°C | 5°C | 7.8°C |
| May 20 | 9°C | 8°C | 8°C | 8.5°C |
| May 21 | 10°C | 8°C | 8°C | 8.8°C |
| May 22 | 9°C | 8°C | 8°C | 8.5°C |
| May 23 | 9°C | 8°C | 9°C | 9.0°C |
| May 24 | 10°C | 9°C | 9°C | 9.5°C |
| May 25 | 10°C | 9°C | 9°C | 9.5°C |
| May 26 | 9°C | 9°C | 9°C | 9.3°C |
| May 27 | 9°C | 9°C | 8°C | 9.0°C |
| May 28 | 9°C | 10°C | 8°C | 9.3°C |
| May 29 | 10°C | 9°C | 8°C | 9.3°C |
| May 30 | 9°C | 10°C | 8°C | 9.3°C |
Castine Climate and Swimming Opportunities in May
14°C
Average Day Air Temperature
7°C
Average Night Air Temperature
60 mm
Precipitation Amount per Month
13 days
Number of Rainy Days
16 hrs
Daylight
per Day
6 hrs
Sunshine
per Day
18 km/h
Average Wind Speed
83%
Average
humidity
Castine lies within the Maine in United States. The average daytime temperature in Castine in May is 58°F (14°C), while the nighttime average is 44°F (7°C). There are typically 13 rainy days during the month, with a total precipitation of 2.4 inches (60 mm). The daylight duration in May in Castine is 16 hours, with an average of 6 hours of sunshine per day. The average wind speed in May is 11 mph (18 km/h), and the humidity level is around 83%.
The water temperature in Castine in May ranges from 43°F to 48°F (6°C to 9°C). At the beginning of the month, the average temperature is around 45°F (7°C), shifting to 45°F (7°C) by mid-May and reaching 48°F (9°C) in the last ten days. Overall, the average sea temperature in Castine for May is 46°F (8°C). The water is frigid, but with warmer air, it might be tolerable for a quick swim. Wetsuits are recommended.
Sea Temperature in May in Nearby Cities
Frequently Asked Questions About Water Temperatures in May in Castine
What is the sea temperature in Castine in May?
The water temperature in the Atlantic Ocean in Castine in May ranges from 43°F to 48°F (6°C to 9°C).
Is it possible to swim in the Atlantic Ocean in Castine in May?
The average sea temperature in Castine in May is 46°F (8°C), and the air temperature is 58°F (14°C), so the water is frigid, but with warmer air, it might be tolerable for a quick swim. Wetsuits are recommended.