Weatheo

Air quality in San Juan

Air quality index (AQI) and PM2.5 air pollution in San Juan · 01:00, 7 Nov local time

Over the next 24 hours the index should stay between 21 and 45: cleanest air around 19:00, most polluted around 12:00.

Modelled values: Copernicus CAMS, via OpenWeather · updated 01:00

Hourly air quality forecast in San Juan

4-day forecast, 96 hours
  1. 1 AM2427°2 km/h
  2. 2 AM2427°2 km/h
  3. 3 AM2427°4 km/h
  4. 4 AM2426°6 km/h
  5. 5 AM2426°6 km/h
  6. 6 AM2326°4 km/h
  7. 7 AM2227°3 km/h
  8. 8 AM2228°0 km/h
  9. 9 AM2330°4 km/h
  10. 10 AM3131°11 km/h
  11. 11 AM4333°15 km/h
  12. 12 PM4533°14 km/h
  13. 1 PM4233°15 km/h
  14. 2 PM3933°15 km/h
  15. 3 PM3433°14 km/h
  16. 4 PM3231°13 km/h
  17. 5 PM2830°12 km/h
  18. 6 PM2329°11 km/h
  19. 7 PM2128°11 km/h
  20. 8 PM2128°9 km/h
  21. 9 PM2128°8 km/h
  22. 10 PM2128°8 km/h
  23. 11 PM2227°8 km/h
  24. 12 AM2227°7 km/h
  25. 1 AM2327°6 km/h
  26. 2 AM2427°4 km/h
  27. 3 AM2627°3 km/h
  28. 4 AM2726°1 km/h
  29. 5 AM2826°2 km/h
  30. 6 AM2826°3 km/h
  31. 7 AM2827°4 km/h
  32. 8 AM2828°3 km/h
  33. 9 AM2929°3 km/h
  34. 10 AM3731°6 km/h
  35. 11 AM5233°11 km/h
  36. 12 PM5633°14 km/h
  37. 1 PM5834°12 km/h
  38. 2 PM5834°11 km/h
  39. 3 PM5533°12 km/h
  40. 4 PM5132°12 km/h
  41. 5 PM4031°10 km/h
  42. 6 PM3130°11 km/h
  43. 7 PM2630°12 km/h
  44. 8 PM2429°8 km/h
  45. 9 PM2329°4 km/h
  46. 10 PM2428°3 km/h
  47. 11 PM2628°3 km/h
  48. 12 AM2728°3 km/h
  49. 1 AM2828°3 km/h
  50. 2 AM2827°5 km/h
  51. 3 AM2827°7 km/h
  52. 4 AM2827°7 km/h
  53. 5 AM2827°7 km/h
  54. 6 AM3027°5 km/h
  55. 7 AM3227°3 km/h
  56. 8 AM3329°3 km/h
  57. 9 AM3331°8 km/h
  58. 10 AM4132°11 km/h
  59. 11 AM5433°16 km/h
  60. 12 PM6133°15 km/h
  61. 1 PM6433°14 km/h
  62. 2 PM6433°13 km/h
  63. 3 PM6133°14 km/h
  64. 4 PM5531°13 km/h
  65. 5 PM4330°11 km/h
  66. 6 PM2830°8 km/h
  67. 7 PM2329°6 km/h
  68. 8 PM2328°4 km/h
  69. 9 PM2428°6 km/h
  70. 10 PM2628°5 km/h
  71. 11 PM2727°4 km/h
  72. 12 AM2727°3 km/h
  73. 1 AM2627°2 km/h
  74. 2 AM2427°0 km/h
  75. 3 AM2326°1 km/h
  76. 4 AM2226°1 km/h
  77. 5 AM2126°2 km/h
  78. 6 AM2226°3 km/h
  79. 7 AM2327°4 km/h
  80. 8 AM2628°4 km/h
  81. 9 AM2629°8 km/h
  82. 10 AM2731°13 km/h
  83. 11 AM3432°17 km/h
  84. 12 PM4132°18 km/h
  85. 1 PM4232°19 km/h
  86. 2 PM4132°19 km/h
  87. 3 PM3931°18 km/h
  88. 4 PM3930°15 km/h
  89. 5 PM3330°13 km/h
  90. 6 PM2629°11 km/h
  91. 7 PM2229°10 km/h
  92. 8 PM2128°8 km/h
  93. 9 PM2028°7 km/h
  94. 10 PM2128°7 km/h
  95. 11 PM2127°7 km/h
  96. 12 AM2127°6 km/h

Daily air quality forecast in San Juan

DayPeak AQIiconHigh / LowWind
Sat745avg 2833° / 26°C9 km/h
Sun858avg 3434° / 26°C7 km/h
Mon964avg 3733° / 27°C8 km/h
Tue1042avg 2832° / 26°C9 km/h

Each day shows its worst hour (peak) and its average.

Last update: 01:00
  • PM2.5 Fine particles (≤ 2.5 µm)4.3 µg/m³24
  • PM10 Coarse particles (≤ 10 µm)8.1 µg/m³7
  • NO₂ Nitrogen dioxide6.7 µg/m³3
  • SO₂ Sulphur dioxide5.7 µg/m³3
  • CO Carbon monoxide156.3 µg/m³1
  • O₃ Ozone54.8 µg/m³25

What this means today

Air quality is satisfactory and poses little or no risk. Normal outdoor activity is fine for everyone.

Sensitive groups
No restrictions
Outdoor exercise
Go ahead
Windows
Open freely

The index is set by PM2.5 at 4.3 µg/m³ (sub-index 24).

These values come from the Copernicus atmospheric model as distributed by OpenWeather, sampled at the coordinates of San Juan. They are modelled concentrations on a grid, not readings from a monitoring station inside the town, so neighbouring localities in the same grid cell will show similar figures. Treat them as a regional indication rather than a measurement taken at your street.

Air quality history in San Juan

38 US AQI · Good · November average

5% lower than the 12-month average (40).

Last 30 days
5010049 (max 69)9 Oct48 (max 71)16 (max 21)26 (max 38)27 (max 35)45 (max 58)14 Oct44 (max 66)45 (max 59)25 (max 42)21 (max 32)38 (max 54)19 Oct60 (max 100)54 (max 67)18 (max 29)21 (max 31)15 (max 19)24 Oct17 (max 18)50 (max 70)50 (max 63)25 (max 31)33 (max 54)29 Oct42 (max 60)35 (max 52)30 (max 44)42 (max 59)24 (max 29)3 Nov39 (max 63)48 (max 73)47 (max 72)24 (max 24)

Hourly model data (Copernicus CAMS via OpenWeather), US AQI computed by Weatheo

Air quality near San Juan

Modelled (Copernicus CAMS via Open-Meteo), worst first · Updated 01:00

#PlaceUS AQI
1Mandaluyong City44
2Plainview44
3Santa Ana44
4Sampaloc39
5San Juan39
6San Miguel39
7Santamesa39
8Soccorro39
9Tatalon39

Philippines: cities ranked by air quality right now

Modelled (Copernicus CAMS via Open-Meteo), worst first · Updated 01:00

#PlaceUS AQI
1Caloocan City54
2Tondo54
3Valenzuela54
4Bacoor52
5City of Parañaque52
6Dasmariñas52
7Las Piñas City52
8Manila52
9Canagatan51
10Bantan50
11Antipolo44
12Pasig City44
13Taguig City44
14Davao42
15General Santos40
16Quezon City39
17San Jose del Monte39
18Zamboanga City32
19Cagayan de Oro31
20Cebu City22

More about San Juan

San Juan air quality: your questions

What is the air pollution index in San Juan?

Right now the air quality index in San Juan is 24 (Good). The main pollutant is fine particles (PM2.5) at 4 µg/m³. Over the next 24 hours the index stays between 21 and 45, best around 7:00 PM. Current weather: San Juan weather today.

Weather across Philippines right now