Statistics Princess Juliana International Airport 2019-2023

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

Calculated from historical METAR data of Princess Juliana International Airport (TNCM) between 2019 and 2023.

VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	91.4	90	95	89	92	93
February	90.2	87	90	95	88	94
March	92.1	92	90	92	93	98
April	93.5	94	96	96	93	94
May	92.8		93	95	96	96
June	89.0		92	88	90	87
July	87.3		88	92	84	90
August	89.5		90	92	88	94
September	94.2		91	97	94	97
October	91.4		96	86	91	93
November	93.6		91	91	93	96
December	93.2		98	94	97	95
Average	91.4	90.8	92.0	92.2	91.4	93.7

1st best VFR conditions of Sint Maarten

VFR conditions during daylight period

Percentage of observations where the VFR minimums for ceiling and visibility are met:

• Visibility: 8 km or more
• Ceiling: 3,000 ft or more

Only observations between sunrise and sunset are taken into account.

Marginal VFR conditions (%)

Month	Average	2023	2022	2021	2020	2019
January	99.2	99	100	100	98	99
February	99.3	100	99	99	99	100
March	99.4	100	99	100	99	100
April	99.7	100	100	100	100	100
May	99.3		99	100	100	100
June	99.1		99	99	100	99
July	99.4		100	100	99	98
August	98.9		99	99	99	99
September	98.8		97	100	99	99
October	98.4		99	96	100	99
November	99.1		99	98	99	99
December	99.3		100	100	100	99
Average	99.2	99.5	99.1	99.0	99.2	99.2

Marginal VFR conditions or better during daylight period

Percentage of observations where the MVFR minimums for ceiling and visibility are met:

• Visibility: 5 km or more
• Ceiling: 1,000 ft or more

Only observations between sunrise and sunset are taken into account.

Maximum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	28.5	28	29	29	29	28
February	28.4	28	29	29	29	28
March	28.6	29	29	29	29	28
April	29.3	29	29	30	31	29
May	29.9		30	31	31	30
June	30.8		31	31	32	31
July	31.2		31	31	32	32
August	31.5		32	32	32	32
September	31.6		31	32	32	32
October	31.1		31	32	31	32
November	30.5		30	31	30	33
December	29.4		29	30	30	30
Average	29.9	28.6	30.0	30.4	30.6	30.3

1st highest temperature of Sint Maarten

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2023	2022	2021	2020	2019
January	23.7	22	24	24	24	24
February	23.0	24	23	24	23	23
March	23.4	24	24	23	23	24
April	24.0	24	25	25	26	24
May	25.1		26	25	26	26
June	25.9		26	24	27	26
July	26.5		26	27	26	27
August	25.8		26	26	26	25
September	25.5		24	27	28	25
October	25.6		26	27	26	25
November	24.3		25	26	23	23
December	24.0		25	25	23	24
Average	24.6	23.5	24.9	25.2	25.0	24.5

1st lowest temperature of Sint Maarten

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Precipitation (%)

Month	Average	2023	2022	2021	2020	2019
January	5.4	6	3	5	10	6
February	6.4	7	12	5	8	3
March	3.7	1	8	4	5	2
April	3.5	4	4	4	2	3
May	4.1		5	3	2	5
June	4.8		3	10	3	4
July	6.0		6	5	9	5
August	6.0		6	7	6	4
September	5.2		9	5	5	5
October	6.7		6	5	9	5
November	7.0		11	8	9	4
December	5.2		3	6	3	5
Average	5.2	4.4	6.2	5.3	5.9	4.2

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 (knots)

Month	Average	2023	2022	2021	2020	2019
January	9.7	10	9	9	9	10
February	11.0	11	10	12	10	12
March	10.3	9	12	11	9	11
April	9.7	9	10	9	8	12
May	10.1		10	10	10	10
June	10.3		10	11	10	11
July	11.2		12	12	11	11
August	9.9		9	10	10	10
September	7.7		9	7	8	7
October	7.8		8	9	8	7
November	8.6		10	8	10	8
December	9.7		7	11	8	9
Average	9.7	9.7	9.8	9.8	9.2	9.7

1st highest wind speed of Sint Maarten

Average wind speed

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

Prevailing wind direction

Month	2023	2022	2021	2020	2019
January	068°	076°	066°	067°	086°
February	063°	063°	075°	074°	087°
March	065°	070°	072°	070°	102°
April	087°	076°	078°	089°	090°
May		078°	081°	098°	091°
June		083°	074°	081°	084°
July		070°	082°	075°	074°
August		071°	072°	072°	079°
September		089°	089°	077°	096°
October		087°	092°	084°	079°
November		081°	071°	078°	075°
December		027°	064°	066°	083°

Prevailing wind direction

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