Weather in San Juan in May

General weather information about San Juan

Average annual temperature is 15.0 °C

Absolute maximum temperature: 40.9 °C

Absolute minimum temperature: -0.3 °C

Number of sunny days: 136 days

Number of rainy days: 229 days

Look at detailed online map of San Juan

* Weather data for San Juan Spain is based on climate observations for 2026 year

San Juan air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	20.4	20.8	28.6	23.4	31.9	29.7	32.4	40.9	32.3	34.9	22.4	19.8
Average daytime temperature (°C)	11.1	12.4	17.2	17.1	18.7	23.7	23.8	24.7	25.9	23.1	16.5	13.6
Average temperature (°C)	8.2	7.9	12.6	12.9	15.4	20.0	20.0	20.4	20.4	18.1	13.2	10.2
Average night temperature (°C)	5.7	4.2	8.4	9.0	12.0	16.5	16.3	16.6	16.2	14.0	10.4	7.0
Absolute minimum temperature (°C)	-0.2	-0.3	0.4	2.1	8.8	14.0	13.8	13.3	11.1	9.3	4.7	0.3

San Juan monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	11.0	12.0	14.0	15.0	15.0	15.0	14.0	13.0	11.0	10.0	9.0
Daylight mean duration (h)	9.4	10.5	11.9	13.4	14.7	15.3	15.0	13.9	12.5	11.0	9.7	9.0
Daylight minimum duration (h)	9.0	9.0	11.0	12.0	14.0	15.0	14.0	13.0	11.0	10.0	9.0	8.0
Sunshine mean duration (h)	4.1	7.1	7.5	9.0	11.0	10.8	10.4	9.7	9.4	7.1	5.1	4.9
Precipitation (mm)	251	85	74	83	96	67	34	100	94	134	225	151
Sunny days	7	18	10	15	13	9	10	14	11	15	4	10
Rainy days	24	10	21	15	18	21	21	17	19	16	26	21
Snow days	0	0	0	0	0	0	0	0	0	0	0	0

San Juan - weather forecast by months

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Best time to visit San Juan:

The best time to visit San Juan during the most sunny months:

May — 11.0(h)
June — 10.8(h)
July — 10.4(h)

Months with the longest average daylight duration in San Juan:

June — 15.3(h)

The largest precipitation sum in San Juan is at

January — 251(mm)

November — 225(mm)

December — 151(mm)

Weather forecast in the closest to San Juan admin centers