Best year time to visit Viana do Castelo

General weather information about Viana do Castelo

Average annual temperature is 15.8 °C

Absolute maximum temperature: 28.2 °C

Absolute minimum temperature: 1.8 °C

Number of sunny days: 188 days

Number of rainy days: 177 days

Look at detailed online map of Viana do Castelo

* Weather data for Viana do Castelo Portugal is based on climate observations for 2026 year

Viana do Castelo air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	15.6	19.9	19.7	24.4	26.3	26.8	25.8	28.2	27.4	28.0	18.5	17.0
Average daytime temperature (°C)	13.4	15.1	15.6	18.5	21.2	22.6	21.4	22.6	21.6	21.2	16.7	14.2
Average temperature (°C)	10.6	10.4	13.0	15.1	17.5	19.5	18.9	19.9	19.1	18.7	14.7	11.9
Average night temperature (°C)	7.9	6.6	10.4	11.5	13.8	16.6	16.3	17.3	16.7	16.2	13.0	9.6
Absolute minimum temperature (°C)	2.1	1.8	2.3	7.6	10.9	14.5	14.2	15.1	13.2	11.8	8.4	5.4

Viana do Castelo monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	10.0	11.0	12.0	13.0	14.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.5	10.6	11.9	13.3	14.5	15.2	14.9	13.8	12.5	11.1	9.9	9.2
Daylight minimum duration (h)	9.0	10.0	11.0	12.0	14.0	14.0	14.0	13.0	11.0	10.0	9.0	9.0
Sunshine mean duration (h)	6.3	9.3	7.8	10.0	11.8	12.2	12.5	11.3	9.8	6.8	4.9	5.3
Precipitation (mm)	218	2	182	42	60	92	26	38	121	407	264	276
Sunny days	15	22	10	15	17	18	22	23	13	11	9	13
Rainy days	16	6	21	15	14	12	9	8	17	20	21	18
Snow days	0	0	0	0	0	0	0	0	0	0	0	0

Viana do Castelo - weather forecast by months

Viana do Castelo weather in january Viana do Castelo weather in february Viana do Castelo weather in march Viana do Castelo weather in april Viana do Castelo weather in may Viana do Castelo weather in june Viana do Castelo weather in july Viana do Castelo weather in august Viana do Castelo weather in september Viana do Castelo weather in october Viana do Castelo weather in november Viana do Castelo weather in december

Best time to visit Viana do Castelo:

The best time to visit Viana do Castelo during the most sunny months:

May — 11.8(h)
June — 12.2(h)
July — 12.5(h)
August — 11.3(h)

The largest precipitation sum in Viana do Castelo is at

January — 218(mm)

March — 182(mm)

October — 407(mm)

November — 264(mm)

December — 276(mm)

Weather forecast in the closest to Viana do Castelo admin centers