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 EET

Forecast Summary

Over the next 71 hours (from Sun 07:00 to Wed 05:00), snorkeling conditions will vary across excellent, good, fair and poor periods. Overall, there are 0 excellent, 0 good, 0 fair, and 71 poor hours.

Daily outlook

Sunday: 15× poor
Monday: 24× poor
Tuesday: 24× poor
Wednesday: 8× poor

Snorkel Score (next 24h)

Snorkel Score (next 72h)

Upcoming High Tides

Next early morning high tide: Wed 02:00

Sun 13:00, Tue 14:00, Wed 02:00

Recent Average Conditions

Wave height: 1.3 m
Wind speed: 12.8 m/s
Sea temperature: 16.5 °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

Sun Sun 07:00 07:00 poor

Sun Sun 08:00 08:00 poor

Sun Sun 09:00 09:00 poor

Sun Sun 10:00 10:00 poor

Sun Sun 11:00 11:00 poor

Sun Sun 12:00 12:00 poor

Sun Sun 13:00 13:00 poor

Sun Sun 14:00 14:00 poor

Sun Sun 15:00 15:00 poor

Sun Sun 16:00 16:00 poor

Sun Sun 17:00 17:00 poor

Sun Sun 18:00 18:00 poor

Sun Sun 19:00 19:00 poor

Sun Sun 20:00 20:00 poor

Sun Sun 21:00 21:00 poor

Sun Sun 22:00 22:00 poor

Sun Sun 23:00 23:00 poor

Mon Mon 00:00 00:00 poor

Mon Mon 01:00 01:00 poor

Mon Mon 02:00 02:00 poor

Mon Mon 03:00 03:00 poor

Mon Mon 04:00 04:00 poor

Mon Mon 05:00 05:00 poor

Mon Mon 06:00 06:00 poor

Mon Mon 07:00 07:00 poor

Mon Mon 08:00 08:00 poor

Mon Mon 09:00 09:00 poor

Mon Mon 10:00 10:00 poor

Mon Mon 11:00 11:00 poor

Mon Mon 12:00 12:00 poor

Mon Mon 13:00 13:00 poor

Mon Mon 14:00 14:00 poor

Mon Mon 15:00 15:00 poor

Mon Mon 16:00 16:00 poor

Mon Mon 17:00 17:00 poor

Mon Mon 18:00 18:00 poor

Mon Mon 19:00 19:00 poor

Mon Mon 20:00 20:00 poor

Mon Mon 21:00 21:00 poor

Mon Mon 22:00 22:00 poor

Mon Mon 23:00 23:00 poor

Tue Tue 00:00 00:00 poor

Tue Tue 01:00 01:00 poor

Tue Tue 02:00 02:00 poor

Tue Tue 03:00 03:00 poor

Tue Tue 04:00 04:00 poor

Tue Tue 05:00 05:00 poor

Tue Tue 06:00 06:00 poor

Tue Tue 07:00 07:00 poor

Tue Tue 08:00 08:00 poor

Tue Tue 09:00 09:00 poor

Tue Tue 10:00 10:00 poor

Tue Tue 11:00 11:00 poor

Tue Tue 12:00 12:00 poor

Tue Tue 13:00 13:00 poor

Tue Tue 14:00 14:00 poor

Tue Tue 15:00 15:00 poor

Tue Tue 16:00 16:00 poor

Tue Tue 17:00 17:00 poor

Tue Tue 18:00 18:00 poor

Tue Tue 19:00 19:00 poor

Tue Tue 20:00 20:00 poor

Tue Tue 21:00 21:00 poor

Tue Tue 22:00 22:00 poor

Tue Tue 23:00 23:00 poor

Wed Wed 00:00 00:00 poor

Wed Wed 01:00 01:00 poor

Wed Wed 02:00 02:00 poor

Wed Wed 03:00 03:00 poor

Wed Wed 04:00 04:00 poor

Wed Wed 05:00 05:00 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
Sun 07:00	05:08	16:30	0.24	11.30	16.40	-0.72	0.20	0.00	poor
Sun 08:00	05:08	16:30	0.24	11.80	16.50	-0.71	0.20	0.00	poor
Sun 09:00	05:08	16:30	0.26	11.50	16.50	-0.69	0.20	0.00	poor
Sun 10:00	05:08	16:30	0.24	11.20	16.60	-0.66	0.00	0.00	poor
Sun 11:00	05:08	16:30	0.24	10.40	16.60	-0.62	0.00	0.00	poor
Sun 12:00	05:08	16:30	0.22	9.70	16.70	-0.60	0.20	0.02	poor
Sun 13:00	05:08	16:30	0.22	9.20	16.70	-0.59	0.40	0.02	poor
Sun 14:00	05:08	16:30	0.20	6.00	16.60	-0.60	0.40	0.06	poor
Sun 15:00	05:08	16:30	0.20	3.60	16.60	-0.63	0.60	0.10	poor
Sun 16:00	05:08	16:30	0.20	3.80	16.50	-0.66	0.60	0.08	poor
Sun 17:00	05:08	16:30	0.18	3.50	16.50	-0.69	0.80	0.00	poor
Sun 18:00	05:08	16:30	0.18	3.60	16.50	-0.71	0.60	0.00	poor
Sun 19:00	05:08	16:30	0.16	3.60	16.40	-0.72	0.60	0.00	poor
Sun 20:00	05:08	16:30	0.16	2.20	16.40	-0.71	0.60	0.00	poor
Sun 21:00	05:08	16:30	0.14	1.10	16.40	-0.69	0.60	0.00	poor
Sun 22:00	05:08	16:30	0.14	1.60	16.40	-0.65	0.50	0.00	poor
Sun 23:00	05:08	16:30	0.14	1.80	16.40	-0.62	0.40	0.00	poor
Mon 00:00	05:07	16:31	0.14	2.60	16.40	-0.59	0.40	0.00	poor
Mon 01:00	05:07	16:31	0.14	4.00	16.40	-0.59	0.40	0.00	poor
Mon 02:00	05:07	16:31	0.14	4.70	16.40	-0.60	0.20	0.00	poor
Mon 03:00	05:07	16:31	0.14	4.00	16.40	-0.63	0.30	0.00	poor
Mon 04:00	05:07	16:31	0.14	3.60	16.40	-0.67	0.30	0.00	poor
Mon 05:00	05:07	16:31	0.12	2.50	16.40	-0.71	0.30	0.00	poor
Mon 06:00	05:07	16:31	0.12	1.10	16.40	-0.74	0.30	0.12	poor
Mon 07:00	05:07	16:31	0.12	0.80	16.40	-0.76	0.40	0.12	poor
Mon 08:00	05:07	16:31	0.12	1.80	16.40	-0.76	0.50	0.11	poor
Mon 09:00	05:07	16:31	0.12	3.90	16.50	-0.74	0.60	0.10	poor
Mon 10:00	05:07	16:31	0.12	11.30	16.50	-0.71	0.60	0.00	poor
Mon 11:00	05:07	16:31	0.10	14.10	16.50	-0.67	0.70	0.00	poor
Mon 12:00	05:07	16:31	0.10	13.90	16.50	-0.63	0.70	0.00	poor
Mon 13:00	05:07	16:31	0.12	9.40	16.50	-0.61	0.70	0.02	poor
Mon 14:00	05:07	16:31	0.12	10.90	16.50	-0.61	0.70	0.00	poor
Mon 15:00	05:07	16:31	0.14	9.60	16.50	-0.63	0.70	0.02	poor
Mon 16:00	05:07	16:31	0.18	7.90	16.50	-0.66	0.60	0.04	poor
Mon 17:00	05:07	16:31	0.22	7.10	16.50	-0.70	0.60	0.00	poor
Mon 18:00	05:07	16:31	0.26	9.30	16.50	-0.73	0.60	0.00	poor
Mon 19:00	05:07	16:31	0.24	8.80	16.50	-0.75	0.60	0.00	poor
Mon 20:00	05:07	16:31	0.24	8.40	16.40	-0.75	0.40	0.00	poor
Mon 21:00	05:07	16:31	0.22	6.80	16.40	-0.73	0.40	0.00	poor
Mon 22:00	05:07	16:31	0.20	6.30	16.40	-0.70	0.40	0.00	poor
Mon 23:00	05:07	16:31	0.18	5.70	16.40	-0.66	0.40	0.00	poor
Tue 00:00	05:05	16:32	0.16	5.20	16.40	-0.63	0.40	0.00	poor
Tue 01:00	05:05	16:32	0.14	5.50	16.40	-0.61	0.40	0.00	poor
Tue 02:00	05:05	16:32	0.14	5.90	16.40	-0.61	0.40	0.00	poor
Tue 03:00	05:05	16:32	0.12	7.00	16.40	-0.63	0.40	0.00	poor
Tue 04:00	05:05	16:32	0.12	6.40	16.40	-0.67	0.40	0.00	poor
Tue 05:00	05:05	16:32	0.14	5.50	16.40	-0.71	0.40	0.00	poor
Tue 06:00	05:05	16:32	0.14	5.80	16.40	-0.75	0.40	0.06	poor
Tue 07:00	05:05	16:32	0.16	4.80	16.40	-0.77	0.60	0.07	poor
Tue 08:00	05:05	16:32	0.20	10.00	16.40	-0.78	0.60	0.01	poor
Tue 09:00	05:05	16:32	0.22	9.80	16.40	-0.76	0.60	0.01	poor
Tue 10:00	05:05	16:32	0.24	10.70	16.40	-0.73	0.60	0.00	poor
Tue 11:00	05:05	16:32	0.24	12.90	16.50	-0.69	0.60	0.00	poor
Tue 12:00	05:05	16:32	0.26	13.30	16.50	-0.65	0.60	0.00	poor
Tue 13:00	05:05	16:32	0.30	13.20	16.50	-0.63	0.60	0.00	poor
Tue 14:00	05:05	16:32	0.32	12.00	16.50	-0.62	0.60	0.00	poor
Tue 15:00	05:05	16:32	0.36	11.20	16.50	-0.63	0.60	0.00	poor
Tue 16:00	05:05	16:32	0.36	9.90	16.40	-0.66	0.60	0.01	poor
Tue 17:00	05:05	16:32	0.38	7.20	16.40	-0.70	0.60	0.00	poor
Tue 18:00	05:05	16:32	0.38	6.50	16.40	-0.74	0.60	0.00	poor
Tue 19:00	05:05	16:32	0.36	5.00	16.40	-0.76	0.60	0.00	poor
Tue 20:00	05:05	16:32	0.34	4.30	16.40	-0.77	0.60	0.00	poor
Tue 21:00	05:05	16:32	0.32	5.10	16.40	-0.76	0.50	0.00	poor
Tue 22:00	05:05	16:32	0.30	4.40	16.40	-0.73	0.50	0.00	poor
Tue 23:00	05:05	16:32	0.28	5.00	16.40	-0.70	0.40	0.00	poor
Wed 00:00	05:04	16:33	0.26	2.60	16.40	-0.66	0.40	0.00	poor
Wed 01:00	05:04	16:33	0.24	0.40	16.40	-0.64	0.40	0.00	poor
Wed 02:00	05:04	16:33	0.22	0.50	16.40	-0.63	0.40	0.00	poor
Wed 03:00	05:04	16:33	0.20	0.50	16.40	-0.64	0.40	0.00	poor
Wed 04:00	05:04	16:33	0.20	0.50	16.40	-0.67	0.40	0.00	poor
Wed 05:00	05:04	16:33	0.20	0.00	16.40	-0.72	0.40	0.00	poor