Climate El Trompillo Airport 2020-2024

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

Calculated from historical METAR data of El Trompillo Airport (SLET) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	72.4	79	65	75	0	75
February	74.7	77	77	70	100	100
March	72.6	78	74	67	0	100
April	64.6		64	64	0	100
May	57.9		47	69	100	100
June	72.8		68	78	0
July	67.2		62	72	50	100
August	72.1		79	65	0	100
September	54.9		58	52	0	50
October	57.2		38	78		75
November	54.4		32	77	33	100
December	79.8		80	80	50	33
Average	65.8	77.8	61.8	70.2	41.1	80.0

18th 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	92.7	94	89	96	50	100
February	94.3	93	93	97	100	100
March	93.4	97	92	92	100	100
April	93.2		92	95	0	100
May	90.4		83	97	100	100
June	95.5		93	98	100
July	96.1		96	97	100	100
August	95.4		100	91	100	100
September	85.4		93	78	0	50
October	80.7		65	97		75
November	78.1		60	96	100	100
December	96.6		97	97	100	33
Average	91.8	94.8	87.3	93.9	94.1	84.0

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	31.6	34	31	34	27	30
February	30.8	32	30	32	30	27
March	30.8	33	31	30	31	26
April	28.5		28	30	18	30
May	25.5		25	26	24	27
June	25.1		26	25	24
July	26.2		26	29	24	27
August	28.2		31	28	28	26
September	29.3		32	28	27	33
October	31.1		34	30		32
November	31.7		34	34	27	27
December	31.1		34	33	25	24
Average	27.9	32.8	30.0	29.7	26.0	28.5

13th 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	24.3	25	22	24	27	30
February	23.6	24	22	23	30	27
March	23.1	25	22	22	31	26
April	21.7		21	21	18	30
May	19.3		19	17	24	27
June	17.6		18	16	24
July	20.0		19	20	24	27
August	20.6		21	18	28	26
September	22.0		23	20	27	33
October	23.8		24	21		32
November	23.5		25	22	27	25
December	24.3		24	23	25	24
Average	24.5	24.5	21.5	20.4	26.0	28.3

16th 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	3.8	2	7	2	0	25
February	4.8	4	9	2	0	0
March	5.3	2	7	7	0	0
April	4.1		8	1	0	0
May	6.2		9	4	0	0
June	3.1		5	2	0
July	3.2		2	4	0	0
August	2.8		0	6	0	0
September	2.8		0	5	0	0
October	1.2		2	1		0
November	1.0		2	0	33	0
December	2.5		3	2	0	33
Average	5.5	2.5	4.3	2.8	5.8	8.0

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	11.2	11	11	12	8	13
February	11.2	11	11	11	14	19
March	12.0	13	11	12	12	10
April	11.7		10	13	0	12
May	11.7		11	12	9	2
June	13.1		13	13	15
July	14.5		14	15	1	17
August	13.2		14	13	12	12
September	14.4		15	14	0	17
October	11.7		13	11		7
November	13.3		15	12	8	10
December	12.5		13	12	3	13
Average	11.6	11.7	12.5	12.5	9.0	11.5

13th 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	326°	304°	310°	320°	310°
February	329°	300°	289°	302°	160°
March	330°	297°	286°	307°	161°
April		172°	302°	360°	188°
May		278°	210°	172°	360°
June		305°	247°	295°
July		297°	311°	360°	322°
August		301°	280°	153°	307°
September		312°	213°	360°	308°
October		306°	286°		319°
November		310°	183°	143°	157°
December		308°	290°	180°	288°

Prevailing wind direction

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