Climate Santos Dumont Airport 2020-2024

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

Calculated from historical METAR data of Santos Dumont Airport (SBRJ) between 2020 and 2024.

VFR conditions (%)

Month	Average	2024	2023	2022	2021	2020
January	86.0	76	78	84	95	90
February	86.2	88	90	80	87	76
March	86.9	80	96	92	94	83
April	86.0		83	83	91	88
May	81.4		83	93	80	84
June	78.1		82	71	89	81
July	79.8		85	83	81	84
August	74.3		67	75	83	89
September	75.4		82	71	79	74
October	72.9		60	80	60	76
November	78.3		84	81	81	74
December	83.2		88	91	86	70
Average	81.0	80.9	81.6	82.0	83.8	80.5

51st best VFR conditions of Brazil

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	96.8	94	92	97	99	97
February	96.4	97	98	96	96	91
March	97.0	93	100	100	99	95
April	97.8		96	98	100	99
May	94.7		96	99	95	97
June	94.4		97	92	98	96
July	94.8		97	97	93	96
August	93.4		88	95	96	98
September	94.2		99	88	99	96
October	94.3		93	98	89	96
November	95.0		96	96	97	93
December	97.2		99	98	98	96
Average	95.5	94.5	95.9	96.2	96.4	95.7

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	30.8	30	29	29	31	29
February	30.2	30	30	28	29	29
March	30.0	29	29	30	30	27
April	28.2		27	28	27	26
May	26.5		26	26	26	26
June	25.8		25	24	25	26
July	25.6		25	26	24	26
August	25.5		26	25	25	25
September	26.9		28	24	26	27
October	27.2		27	27	24	27
November	27.5		29	26	25	26
December	28.8		29	28	27	28
Average	28.0	29.4	27.3	26.7	26.6	26.9

87th highest temperature of Brazil

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	23.8	24	24	24	25	23
February	23.5	25	24	24	24	23
March	23.3	24	24	24	25	23
April	22.4		23	23	22	22
May	20.9		21	21	21	20
June	19.9		20	19	20	21
July	19.2		19	20	18	20
August	19.1		20	19	20	20
September	20.7		22	19	21	23
October	21.7		22	22	20	23
November	21.4		23	21	21	22
December	22.9		24	22	23	24
Average	21.9	24.3	22.0	21.4	21.5	21.8

67th lowest temperature of Brazil

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	6.3	10	13	10	1	8
February	5.2	3	2	6	5	12
March	4.2	7	1	2	2	8
April	4.3		9	4	3	3
May	4.8		8	4	5	6
June	4.2		1	8	4	3
July	3.7		6	2	2	6
August	8.2		13	9	5	5
September	6.7		4	17	1	5
October	8.0		12	4	14	7
November	8.0		6	8	11	3
December	6.7		5	7	10	12
Average	6.0	6.9	6.5	6.6	5.2	6.7

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	7.8	8	7	8	8	8
February	7.5	8	8	8	8	7
March	7.6	8	8	8	8	8
April	7.1		8	8	8	7
May	6.5		7	7	7	7
June	6.1		6	6	6	6
July	6.7		7	7	7	7
August	6.8		7	7	7	7
September	7.7		8	8	8	8
October	7.9		8	8	8	9
November	8.0		9	9	8	8
December	8.3		9	8	9	8
Average	7.4	7.8	7.6	7.6	7.8	7.4

87th highest wind speed of Brazil

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	163°	156°	161°	157°	162°
February	156°	154°	158°	149°	161°
March	164°	153°	154°	156°	158°
April		161°	163°	177°	163°
May		167°	216°	153°	169°
June		138°	182°	184°	088°
July		166°	160°	187°	153°
August		156°	170°	152°	164°
September		165°	166°	163°	156°
October		163°	161°	152°	161°
November		164°	152°	162°	161°
December		162°	146°	160°	158°

Prevailing wind direction

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