Climate San Ramón Airport 2020-2024

Climate and trends: average temperature, flight conditions, precipitation, wind speed and direction.

Calculated from historical METAR data of San Joaquín Airport (SLJO) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	82.6	82	77	88	79	91
February	79.8	80	68	85	83	93
March	81.7	92	86	82	68	93
April	86.9	94	89	93	95	100
May	85.5		77	94	90	100
June	88.9		96	73	86	80
July	96.8		100	84	99	94
August	59.8		49	64	44	71
September	36.8		10	4	63	24
October	72.7		23	25	79	55
November	73.9		76	27	60	84
December	75.5		89	5	70	88
Average	76.9	86.8	69.0	66.6	74.7	83.4

16th best VFR conditions of Bolivia

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met: visibility of 8 km or more and a ceiling of 3,000 ft or more. Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	96.3	91	98	94	94	98
February	95.3	87	93	97	94	97
March	96.6	97	99	93	91	99
April	97.6	95	98	97	100	100
May	96.3		93	99	94	100
June	95.8		100	82	95	92
July	98.4		100	84	100	97
August	97.3		92	98	96	100
September	91.4		100	5	99	99
October	95.7		97	27	99	95
November	89.6		83	30	82	100
December	91.6		97	9	90	97
Average	93.6	92.4	95.7	75.9	94.8	97.4

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met: visibility of 5 km or more and a ceiling of 1,000 ft or more. Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	30.7	29	31	32	30	32
February	30.5	31	29	31	31	31
March	31.0	31	31	31	30	33
April	31.0	33	32	32	29	28
May	29.7		29	28	29	28
June	29.1		29	24	29	29
July	31.0		34	24	32	28
August	32.8		34	32	34	28
September	33.8		36	24	36	34
October	31.9		36	11	34	34
November	28.9		30	11	25	33
December	28.9		32	2	31	31
Average	30.6	31.1	31.9	25.0	31.0	31.5

19th highest temperature of Bolivia

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	23.3	24	21	24	23	24
February	23.5	25	23	25	23	24
March	23.6	23	25	24	23	24
April	23.2	24	25	25	22	28
May	21.2		21	20	22	27
June	18.9		19	17	17	24
July	17.3		21	14	17	20
August	18.6		21	20	17	23
September	21.1		25	14	22	22
October	21.8		26	7	23	24
November	21.1		21	10	20	24
December	22.3		26	2	25	24
Average	21.7	24.0	22.7	17.8	21.0	23.6

15th lowest temperature of Bolivia

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	3.9	12	2	3	7	3
February	5.6	12	7	2	5	3
March	3.7	8	5	4	7	3
April	1.4	3	2	2	0	0
May	0.8		1	2	2	0
June	0.9		1	6	0	0
July	0.0		0	0	0	0
August	0.3		0	1	0	0
September	0.4		1	0	0	0
October	1.1		0	3	1	3
November	2.5		6	0	8	0
December	3.6		3	3	3	6
Average	2.8	8.3	2.2	2.2	2.5	2.7

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 (knots)

Month	Average	2024	2023	2022	2021	2020
January	5.5	3	6	7	7	6
February	5.3	3	5	7	5	6
March	4.8	3	5	7	5	5
April	4.6	3	3	7	7	5
May	4.7		3	6	6	5
June	4.5		4	4	5	6
July	4.5		4	3	5	5
August	5.6		5	5	6	11
September	6.0		7	4	7	6
October	5.8		6	2	7	7
November	4.9		3	2	5	5
December	4.7		3	1	6	6
Average	4.9	3.0	4.4	5.2	5.8	5.6

19th highest wind speed of Bolivia

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	324°	328°	339°	342°	335°
February	323°	308°	348°	333°	327°
March	323°	324°	358°	329°	333°
April	335°	323°	359°	121°	116°
May		167°	132°	129°	029°
June		160°	140°	133°	063°
July		326°	047°	123°	134°
August		345°	145°	106°	160°
September		337°	290°	337°	119°
October		345°	073°	336°	356°
November		327°	357°	334°	004°
December		324°	336°	332°	346°

Prevailing wind direction

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