Weather in San Martín

Calculated from weather data of Juanjui Airport (SPJI) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	31.7	32.5	31.1	32.7	31.0	32.3
February	31.4	31.6	30.3	30.6	31.8	32.5
March	30.6	31.6	29.0	29.8	30.6	31.3
April	31.2	32.7	30.1	30.5	30.6
May	31.0		30.3	29.3	31.0
June	30.6		30.3	29.5	29.8
July	31.2		32.1	31.1	30.0	32.0
August	31.9		32.5	30.8	32.1
September	32.6		32.7	32.7	31.6
October	32.7		34.0	32.0	33.0
November	32.2		32.7	31.8	31.8	33.6
December	32.0		31.8	32.2	32.1	32.1
Average	31.7	32.1	31.4	31.0	31.3	32.4

4th highest temperature of Peru

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	24.3	25	24	25	24	25
February	24.1	25	24	24	24	25
March	23.9	25	24	24	24	24
April	23.9	25	24	24	24
May	23.7		24	24	24
June	22.3		22	22	22
July	22.2		24	23	22	30
August	23.0		24	23	23
September	23.8		24	24	24
October	24.7		26	25	24
November	25.0		26	25	25	26
December	24.7		24	25	25	25
Average	24.0	25.1	24.1	23.8	23.6	24.8

23rd lowest temperature of Peru

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
30 °C or warmer	82	219	199	225	98
25 °C or warmer	103	299	289	303	118
20 °C or warmer	104	312	301	313	119
0 °C or colder	0	0	0	0	0

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	4.2	0	7	0	5	3
February	4.6	8	7	5	3	3
March	6.8	6	15	10	5	9
April	4.6	3	11	4	9
May	4.6		6	8	5
June	2.8		3	4	5
July	1.8		2	0	1	0
August	2.5		6	4	2
September	3.3		3	4	2
October	2.8		1	10	0
November	3.5		2	4	4	2
December	4.3		8	5	3	2
Average	4.0	4.0	5.8	4.7	3.5	3.2

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (km/h)

Month	Average	2024	2023	2022	2021	2020
January	3.3	5	4	5	4	6
February	2.8	4	4	5	4	5
March	2.7	4	3	4	4	5
April	3.0	5	4	9	4
May	1.9		3	4	4
June	2.5		4	5	5
July	2.0		4	3	4	0
August	2.5		4	3	5
September	2.6		4	5	4
October	3.2		4	5	5
November	4.0		4	5	7	4
December	3.6		5	5	4	5
Average	3.3	4.4	3.9	4.8	4.4	5.0

23rd highest wind speed of Peru

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	SE	SE	SE	SE	E
February	SE	SE	SE	SE	SE
March	SE	SE	SE	SE	E
April	SE	E	S	E
May		E	SE	E
June		SE	SE	SE
July		SE	SE	E	N
August		E	E	E
September		SE	SE	E
October		SE	SE	SE
November		SE	SE	SE	E
December		SE	SE	SE	SE

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

San Martín weather Q&A

What is the warmest month in San Martín?

The warmest month is October with an average temperature of 33 °C over the past years.

What is the coldest month in San Martín?

The coldest month is June with an average daytime temperature of 31 °C in the past few years.

Which month is the wettest in San Martín?

Chance of precipitation is the highest in March with a probability of around 6.9 %.

Which month is the driest in San Martín?

The least rainfall and snow can be expected in July. The probability is about 1.8 %.