In the autonomous community of Galicia, in north-western Spain, the climate is different from what is normally expected in Spain, in fact it is mild oceanic, with relatively mild and rainy winters, and cool and quite sunny summers. In summer, short heat waves are possible, with highs around or above 30 °C (86 °F). In July 2013, the temperature reached 36 °C (97 °F) in La Coruña, 38 °C (100 °F) in Pontevedra and 39.7 °C (103.5 °F) in Vigo.
The wind blows frequently, and can be stormy in the cold season, so there are several beaches frequented by surfers.
Fog is also common: it can present itsfelf all year round, when there is no wind, even on summer nights.
Snowfalls are only sporadic on the coast (where for example it snowed on the 10th of January 2010); they are still very rare (once or twice a year) in low-lying inland areas, while they become abundant in the mountains during winter.
The rains are usually abundant, since they exceed almost everywhere 1,000 millimetres (40 inches) per year, while they are close to 2,000 mm (79 in) along the west coast and on west facing slopes. However, summer is the driest season, when the rains, though possible also in this season, become quite rare.
In the interior there are mountain ranges, where the climate gets colder with increasing altitude, and in winter heavy snowfalls can occur. There are also skilifts. The highest peak is Peña Trevinca, 2,124 metres (6,968 feet) high, in Serra do Eixe, while the altitude exceeds 1,700 metres (5,600 ft) in Serra de Queixa and Sierra de Ancares.
The coast is indented, and there are coves (called rías) as well as islands. The most important islands are Illa de Arousa (inside the ría of the same name and in the province of Pontevedra), the Cies Islands (off the coast of Vigo, where the famous Praia das Rodas is located), and the Ons Island (slightly to the north, and west of Pontevedra).
The most western point of Galicia and Spain is Cape Touriñán, just north of Cape Finisterre, which is traditionally (and wrongly) considered as the most westerly. This westernmost part of the coast is called Costa da Morte (or Costa de la Muerte in Castilian), because of the several shipwrecks that occurred in the course of history, due to the dangerousness of the coast as well as the frequent storms.
About fifty kilometres (30 miles) south-west of Santiago de Compostela we find a large sandy beach, called Dunas de Corrubedo, protected in a natural park.
In the northeast there's a beach, called Praia das Catedrais or Praia de Augas Santas, where you will find characteristic rocky arches.



On the northwest coast, in La Coruña the climate is mild in winter, while in summer it remains cool: highs in July and August are just around 22/23 °C (72/73 °F).
Here are the average temperatures.
Average temperatures - La Coruna

La Coruna	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
La Coruna	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	8	8	9	10	12	14	16	16	15	13	11	9
Max (°C)	14	14	16	16	18	21	22	23	22	19	16	14
Min (°F)	46	46	48	50	54	57	61	61	59	55	52	48
Max (°F)	57	57	61	61	64	70	72	73	72	66	61	57

In La Coruna, approximately 1,050 mm (41 in) of rain per year fall; the wettest seasons are autumn and winter, the least rainy is summer: from June to August precipitation drops below 50 mm (2 in) per month, though on average it still rains for 6/7 days per month.
Here is the average precipitation.
Average precipitation - La Coruna

La Coruna	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
La Coruna	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	115	90	80	90	80	45	35	35	65	135	140	135	1045
Prec. (in)	4.5	3.5	3.1	3.5	3.1	1.8	1.4	1.4	2.6	5.3	5.5	5.3	41.1
Days	15	12	12	14	11	7	6	6	8	13	15	15	135

Further south, and in the interior, we find Santiago de Compostela, which is a bit colder both because of the distance from the sea and of altitude, and is also rainier, as it receives nearly 1,900 mm (75 in) of rainfall per year.
Lugo, located in the interior and at 450 metres (1,450 ft) of altitude, becomes pretty cold in winter, when night frosts become quite frequent, while in summer, while days are pleasant, nights remain cool.
In Sarria, which is at no great distance from Lugo and practically at the same altitude, and is often chosen as the starting point for the Camino de Santiago (or Way of St. James), the temperatures are similar.
Here are the average temperatures of Lugo.
Average temperatures - Lugo

Lugo	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Lugo	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	2	2	3	5	7	10	12	12	10	8	5	3
Max (°C)	11	12	15	16	19	22	24	25	23	18	14	11
Min (°F)	36	36	37	41	45	50	54	54	50	46	41	37
Max (°F)	52	54	59	61	66	72	75	77	73	64	57	52

In Lugo, the rain pattern is very similar to that of La Coruna: rainfall amounts to 1.115 mm (44 in) per year, with a peak between October and January, when it exceeds 110 mm (4.3 in) per month, and a minimum in summer.
Here is the average precipitation.
Average precipitation - Lugo

Lugo	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Lugo	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	115	90	85	105	90	55	35	40	70	140	145	150	1115
Prec. (in)	4.5	3.5	3.3	4.1	3.5	2.2	1.4	1.6	2.8	5.5	5.7	5.9	43.9
Days	14	12	12	14	13	7	5	6	8	14	15	15	135

In the southwestern part of the coast, in cities such as Vigo and Pontevedra, the climate remains cool enough; inside the rías, in winter the temperature is a bit lower than on the Atlantic coast, while in summer it becomes a little higher.
Here are the average temperatures in Vigo.
Average temperatures - Vigo

Vigo	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Vigo	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	5	6	7	8	10	13	15	15	14	11	8	6
Max (°C)	12	13	16	17	19	23	24	25	23	19	15	12
Min (°F)	41	43	45	46	50	55	59	59	57	52	46	43
Max (°F)	54	55	61	63	66	73	75	77	73	66	59	54

The rains in the coast exposed to the westerly winds are particularly abundant: in Vigo they reach 1,800 mm (70 in) per year, including more than 200 mm (8 in) per month from October to January; sometimes they reach spectacular values. But even here, in summer fortunately the rains diminish both in intensity and in frequency.
Here is the average rainfall in Vigo.
Average precipitation - Vigo

Vigo	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Vigo	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	210	165	140	155	125	60	45	45	105	235	250	265	1805
Prec. (in)	8.3	6.5	5.5	6.1	4.9	2.4	1.8	1.8	4.1	9.3	9.8	10.4	71.1
Days	14	12	12	14	12	7	5	5	8	13	14	15	131

In the southeastern interior area and at low altitude, the climate becomes almost Mediterranean, and in summer it becomes quite hot: in Orense (or Ourense), 250 metres (800 ft) above sea level, highs in July and August reach 30/31 °C (86/88 °F), although nights remain cool.
Here are the average temperatures.
Average temperatures - Orense

Orense	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Orense	J	F	M	A	M	J	J	A	S	O	N	D
Min (°C)	3	3	5	7	9	13	15	15	12	10	6	4
Max (°C)	13	15	19	20	23	28	30	31	28	22	16	13
Min (°F)	37	37	41	45	48	55	59	59	54	50	43	39
Max (°F)	55	59	66	68	73	82	86	88	82	72	61	55

In Orense, precipitation drops below 1,000 mm (40 in) per year, and in summer the rains are quite rare.
Here is the average precipitation.
Average precipitation - Orense

Orense	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year
Orense	J	F	M	A	M	J	J	A	S	O	N	D	Y
Prec. (mm)	95	70	60	75	70	35	20	20	60	115	110	115	850
Prec. (in)	3.7	2.8	2.4	3	2.8	1.4	0.8	0.8	2.4	4.5	4.3	4.5	33.5
Days	11	9	9	12	10	5	3	4	6	11	11	11	102

North-east of Orense, we find the Sil River, which gives birth to the canyon of the same name.

The amount of sunshine in Galicia is good in the summer, when sunny days prevail, especially in the southern part (in July and August there are approximately 8 hours of sunshine per day in La Coruña and in Santiago de Compostela, and even 9/10 in Vigo and Pontevedra), while in the other seasons, and especially in late autumn and in winter, the sky is often cloudy, due to the prevalence of Atlantic depressions.
Here are the average hours of sunshine per day in La Coruna.
Sunshine - La Coruna

La Coruna	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
La Coruna	J	F	M	A	M	J	J	A	S	O	N	D
Sun (hours)	3	4	5	6	6	7	8	8	6	5	3	3

The sea along the northern coast of Galicia is a bit cold even in summer, as you can see in the following table, regarding the temperature of the sea at La Coruna.
Sea temperature - La Coruna

La Coruna	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
La Coruna	J	F	M	A	M	J	J	A	S	O	N	D
Sea (°C)	13	13	13	13	14	16	18	19	18	17	15	14
Sea (°F)	55	55	55	55	57	61	64	66	64	63	59	57

On the west coast, the ocean temperature is practically the same, as can be seen from the data of Vigo.
Sea temperature - Vigo

Vigo	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Vigo	J	F	M	A	M	J	J	A	S	O	N	D
Sea (°C)	14	13	13	14	15	16	18	19	18	17	16	15
Sea (°F)	57	55	55	57	59	61	64	66	64	63	61	59

The best time to visit Galicia is the summer, from June to August or the first half of September, being the most dry and sunny. July and August are the warmest and less rainy months. However, sometimes it can rain also in midsummer, and some nights can be a bit cool on the coast, and a bit cold in inland areas. Those who don't like the heat, to avoid the albeit rare hot days, can choose the months of May (especially the second half), June and September (especially the first half), knowing though that it could rain more frequently.
In the summer, on sunny days (which are quite frequent, especially in the south-west), you can take a break at the beach and sunbathe, with an air temperature often pleasant and a cool breeze from the ocean, but as mentioned the sea is cold for swimming.