What conditions make snorkeling ideal?

Ideal snorkeling conditions require wave height less than 0.36 meters, wind speed below 5.4 meters/second, sea surface temperature between 20.6°C and 30.4°C, and being within ±72 minutes of high tide with currents ≤ 0.36 m/s.

Snorkel Forecast – Zakynthos, Greece

All times are in EEST

Forecast Summary

Over the next 69 hours (from Wed 07:00 to Sat 03:00), snorkeling conditions will vary across excellent, good, fair and poor periods. Overall, there are 0 excellent, 0 good, 0 fair, and 69 poor hours.

Daily outlook

Wednesday: 14× poor
Thursday: 24× poor
Friday: 24× poor
Saturday: 7× poor

Snorkel Score (next 24h)

Snorkel Score (next 72h)

Upcoming High Tides

Next early morning high tide: Fri 01:00

Thu 13:00, Fri 01:00

Recent Average Conditions

Wave height: 1.0 m
Wind speed: 11.1 m/s
Sea temperature: 16.3 °C

Seasonal Snorkeling Trends

Best months for snorkeling: September, October, December

FAQs

When is the next safe snorkel window?

No safe snorkeling window is expected in the next 72 hours.

Condition Trends (next 24h)

Condition Trends (next 72h)

72-Hour Forecast Overview

Wed Wed 07:00 07:00 poor

Wed Wed 08:00 08:00 poor

Wed Wed 09:00 09:00 poor

Wed Wed 10:00 10:00 poor

Wed Wed 11:00 11:00 poor

Wed Wed 12:00 12:00 poor

Wed Wed 13:00 13:00 poor

Wed Wed 14:00 14:00 poor

Wed Wed 15:00 15:00 poor

Wed Wed 16:00 16:00 poor

Wed Wed 17:00 17:00 poor

Wed Wed 18:00 18:00 poor

Wed Wed 19:00 19:00 poor

Wed Wed 20:00 20:00 poor

Wed Wed 21:00 21:00 poor

Wed Wed 22:00 22:00 poor

Wed Wed 23:00 23:00 poor

Thu Thu 00:00 00:00 poor

Thu Thu 01:00 01:00 poor

Thu Thu 02:00 02:00 poor

Thu Thu 03:00 03:00 poor

Thu Thu 04:00 04:00 poor

Thu Thu 05:00 05:00 poor

Thu Thu 06:00 06:00 poor

Thu Thu 07:00 07:00 poor

Thu Thu 08:00 08:00 poor

Thu Thu 09:00 09:00 poor

Thu Thu 10:00 10:00 poor

Thu Thu 11:00 11:00 poor

Thu Thu 12:00 12:00 poor

Thu Thu 13:00 13:00 poor

Thu Thu 14:00 14:00 poor

Thu Thu 15:00 15:00 poor

Thu Thu 16:00 16:00 poor

Thu Thu 17:00 17:00 poor

Thu Thu 18:00 18:00 poor

Thu Thu 19:00 19:00 poor

Thu Thu 20:00 20:00 poor

Thu Thu 21:00 21:00 poor

Thu Thu 22:00 22:00 poor

Thu Thu 23:00 23:00 poor

Fri Fri 00:00 00:00 poor

Fri Fri 01:00 01:00 poor

Fri Fri 02:00 02:00 poor

Fri Fri 03:00 03:00 poor

Fri Fri 04:00 04:00 poor

Fri Fri 05:00 05:00 poor

Fri Fri 06:00 06:00 poor

Fri Fri 07:00 07:00 poor

Fri Fri 08:00 08:00 poor

Fri Fri 09:00 09:00 poor

Fri Fri 10:00 10:00 poor

Fri Fri 11:00 11:00 poor

Fri Fri 12:00 12:00 poor

Fri Fri 13:00 13:00 poor

Fri Fri 14:00 14:00 poor

Fri Fri 15:00 15:00 poor

Fri Fri 16:00 16:00 poor

Fri Fri 17:00 17:00 poor

Fri Fri 18:00 18:00 poor

Fri Fri 19:00 19:00 poor

Fri Fri 20:00 20:00 poor

Fri Fri 21:00 21:00 poor

Fri Fri 22:00 22:00 poor

Fri Fri 23:00 23:00 poor

Sat Sat 00:00 00:00 poor

Sat Sat 01:00 01:00 poor

Sat Sat 02:00 02:00 poor

Sat Sat 03:00 03:00 poor

How We Calculate Conditions

We consider snorkeling conditions to be ideal when all of the following criteria, fetched from the Open-Meteo API, are met during daylight hours (between sunrise and sunset):

Wave height is less than 0.36 meters.
Wind speed is below 5.4 meters/second.
Sea surface temperature is between 20.6°C and 30.4°C.
Within ±72 min of high tide and currents ≤ 0.36 m/s.

Detailed Conditions

Time	Sunrise	Sunset	Wave Height (m)	Wind Speed (m/s)	Sea Temp (°C)	Tide Height (m)	Current (m/s)	Score	Rating
Wed 07:00	04:01	17:12	1.64	8.40	16.70	-0.60	0.60	0.00	poor
Wed 08:00	04:01	17:12	1.66	11.10	16.80	-0.59	0.60	0.00	poor
Wed 09:00	04:01	17:12	1.66	13.40	16.90	-0.55	0.80	0.00	poor
Wed 10:00	04:01	17:12	1.64	11.80	17.00	-0.52	0.80	0.00	poor
Wed 11:00	04:01	17:12	1.62	10.70	17.00	-0.49	1.00	0.00	poor
Wed 12:00	04:01	17:12	1.60	8.90	17.10	-0.47	0.90	0.00	poor
Wed 13:00	04:01	17:12	1.54	9.00	17.10	-0.47	0.90	0.00	poor
Wed 14:00	04:01	17:12	1.48	14.90	17.10	-0.48	0.70	0.00	poor
Wed 15:00	04:01	17:12	1.42	5.90	17.00	-0.52	0.60	0.00	poor
Wed 16:00	04:01	17:12	1.36	11.70	17.00	-0.55	0.50	0.00	poor
Wed 17:00	04:01	17:12	1.32	2.70	17.00	-0.59	0.50	0.00	poor
Wed 18:00	04:01	17:12	1.26	5.70	17.00	-0.61	0.30	0.00	poor
Wed 19:00	04:01	17:12	1.20	4.80	17.00	-0.61	0.20	0.00	poor
Wed 20:00	04:01	17:12	1.14	7.30	16.90	-0.60	0.20	0.00	poor
Wed 21:00	04:01	17:12	1.08	5.40	16.90	-0.57	0.20	0.00	poor
Wed 22:00	04:01	17:12	1.04	8.30	16.90	-0.54	0.20	0.00	poor
Wed 23:00	04:01	17:12	1.02	8.40	16.90	-0.51	0.40	0.00	poor
Thu 00:00	04:00	17:13	0.98	10.90	16.90	-0.48	0.40	0.00	poor
Thu 01:00	04:00	17:13	0.96	5.90	16.90	-0.48	0.50	0.00	poor
Thu 02:00	04:00	17:13	0.92	5.80	16.80	-0.50	0.50	0.00	poor
Thu 03:00	04:00	17:13	0.90	5.80	16.80	-0.53	0.50	0.00	poor
Thu 04:00	04:00	17:13	0.86	8.20	16.80	-0.56	0.50	0.00	poor
Thu 05:00	04:00	17:13	0.84	8.50	16.80	-0.59	0.40	0.00	poor
Thu 06:00	04:00	17:13	0.80	9.90	16.80	-0.60	0.40	0.00	poor
Thu 07:00	04:00	17:13	0.78	12.20	16.90	-0.60	0.40	0.00	poor
Thu 08:00	04:00	17:13	0.74	12.50	17.00	-0.59	0.40	0.00	poor
Thu 09:00	04:00	17:13	0.72	12.50	17.00	-0.56	0.40	0.00	poor
Thu 10:00	04:00	17:13	0.68	12.80	17.10	-0.52	0.40	0.00	poor
Thu 11:00	04:00	17:13	0.64	11.00	17.20	-0.48	0.40	0.00	poor
Thu 12:00	04:00	17:13	0.60	11.00	17.20	-0.45	0.40	0.00	poor
Thu 13:00	04:00	17:13	0.58	11.50	17.20	-0.44	0.20	0.00	poor
Thu 14:00	04:00	17:13	0.54	11.60	17.30	-0.45	0.30	0.00	poor
Thu 15:00	04:00	17:13	0.52	11.20	17.20	-0.48	0.30	0.00	poor
Thu 16:00	04:00	17:13	0.52	10.40	17.20	-0.52	0.30	0.00	poor
Thu 17:00	04:00	17:13	0.54	8.10	17.20	-0.55	0.30	0.02	poor
Thu 18:00	04:00	17:13	0.54	8.30	17.20	-0.58	0.30	0.00	poor
Thu 19:00	04:00	17:13	0.56	8.10	17.10	-0.60	0.40	0.00	poor
Thu 20:00	04:00	17:13	0.56	8.10	17.10	-0.59	0.40	0.00	poor
Thu 21:00	04:00	17:13	0.58	7.10	17.10	-0.57	0.40	0.00	poor
Thu 22:00	04:00	17:13	0.58	7.40	17.00	-0.53	0.50	0.00	poor
Thu 23:00	04:00	17:13	0.56	6.90	17.00	-0.50	0.50	0.00	poor
Fri 00:00	03:59	17:14	0.56	8.30	17.00	-0.47	0.60	0.00	poor
Fri 01:00	03:59	17:14	0.56	8.90	17.00	-0.45	0.60	0.00	poor
Fri 02:00	03:59	17:14	0.56	10.50	17.00	-0.46	0.60	0.00	poor
Fri 03:00	03:59	17:14	0.56	11.90	16.90	-0.48	0.60	0.00	poor
Fri 04:00	03:59	17:14	0.56	14.10	16.90	-0.52	0.50	0.00	poor
Fri 05:00	03:59	17:14	0.56	13.50	16.90	-0.55	0.40	0.00	poor
Fri 06:00	03:59	17:14	0.56	14.70	16.90	-0.58	0.40	0.00	poor
Fri 07:00	03:59	17:14	0.56	16.50	17.00	-0.59	0.40	0.00	poor
Fri 08:00	03:59	17:14	0.58	15.80	17.00	-0.58	0.40	0.00	poor
Fri 09:00	03:59	17:14	0.58	16.10	17.00	-0.56	0.30	0.00	poor
Fri 10:00	03:59	17:14	0.58	17.90	17.10	-0.52	0.30	0.00	poor
Fri 11:00	03:59	17:14	0.56	18.40	17.10	-0.47	0.30	0.00	poor
Fri 12:00	03:59	17:14	0.56	18.50	17.20	-0.44	0.20	0.00	poor
Fri 13:00	03:59	17:14	0.56	16.10	17.20	-0.41	0.00	0.00	poor
Fri 14:00	03:59	17:14	0.56	11.90	17.20	-0.41	0.30	0.00	poor
Fri 15:00	03:59	17:14	0.56	8.30	17.20	-0.43	0.40	0.02	poor
Fri 16:00	03:59	17:14	0.58	6.70	17.20	-0.47	0.40	0.02	poor
Fri 17:00	03:59	17:14	0.62	6.80	17.20	-0.51	0.60	0.02	poor
Fri 18:00	03:59	17:14	0.64	4.20	17.20	-0.54	0.50	0.00	poor
Fri 19:00	03:59	17:14	0.64	3.70	17.20	-0.57	0.50	0.00	poor
Fri 20:00	03:59	17:14	0.66	4.30	17.20	-0.58	0.40	0.00	poor
Fri 21:00	03:59	17:14	0.66	5.50	17.10	-0.57	0.40	0.00	poor
Fri 22:00	03:59	17:14	0.64	4.80	17.10	-0.54	0.30	0.00	poor
Fri 23:00	03:59	17:14	0.62	3.80	17.10	-0.50	0.40	0.00	poor
Sat 00:00	03:57	17:15	0.60	3.90	17.00	-0.47	0.40	0.00	poor
Sat 01:00	03:57	17:15	0.60	4.40	17.00	-0.44	0.20	0.00	poor
Sat 02:00	03:57	17:15	0.62	5.20	17.00	-0.44	0.20	0.00	poor
Sat 03:00	03:57	17:15	0.62	5.60	17.00	-0.45	0.30	0.00	poor