Guanacaste vs Kos

Illuminated beachfront dining pavilion with white railings and thatched-roof bungalows reflected in the pool at dusk.

Pool deck with loungers overlooking a bay, white modern building, and dining area at Mitsis Selection Blue Domes under blue sky.

Guanacaste and Kos, side by side: live travel advisories, our resort catalog's real guest data, and each destination's honest weather picture. Everything you need to break the tie.

By the numbers

Guanacaste compared with Kos
Guanacaste	Measure	Kos
Level 2: Exercise Increased Caution	U.S. travel advisory	Level 1: Exercise Normal Precautions (better)
6 (better)	Resorts in our catalog	2
★ 4.4	Average guest rating	★ 4.8 (better)
$88–$261/night pp (better)	Nightly rates	$177–$857/night pp
1 of 6	Adults-only resorts	0 of 2
Low hurricane risk	Hurricane exposure	No hurricane season (better)
May–November ('green season'), seriously wet September–October	Rainy season	November–March
December–April, bone-dry	Sweet spot	June and September; July–August is hottest and windiest
Liberia (LIR), Papagayo resorts 30–45 min	Airport	Kos (KGS), in the centre of the island; most resorts are 10–30 min away
Papagayo Peninsula, Playas del Coco, Conchal, Flamingo, Tamarindo	The coast	South (Kardamena, Kefalos) for shelter; north (Tigaki, Marmari) for wind and kites
Nature + beach in one trip; reliable winter sun	Best for	A straightforward beach week, cycling, short transfers, a day in Turkey

Advisory levels sync from travel.state.gov; catalog figures reflect the resorts we've researched, not every hotel in the country. A marked row is one we are willing to call; rows without a mark are a matter of taste, or we have no comparable figure for both sides.

On the map

Guanacaste

Kos

Weather, month by month

Month-by-month average high temperature and rainfall for Guanacaste and Kos
Measure	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Guanacaste · high °F	91	92	93	93	91	88	88	88	87	86	87	89
Kos · high °F	59	59	63	68	76	84	88	88	83	76	68	61
Guanacaste · rain (in)	0.1	0.1	0.2	0.7	7.7	9.0	5.9	7.9	13.0	12.2	4.3	0.5
Kos · rain (in)	5.0	3.4	2.4	0.9	0.4	0.1	0.0	0.0	0.3	2.1	3.6	5.8

Approximate climate normals for Papagayo / Guanacaste and Kos: planning guidance, not a forecast. A deeper tint is a higher number, read within its own row.