| Tahun Data | : | 2009 |
| Nama Stasiun | : | TRMM-1517 |
| Lokasi Stasiun | : | Desa Sinaka, Kecamatan Pagai Selatan, Kepulauan Mentawai, Provinsi Sumatera Barat |
| Longitude | : | 100.375000 |
| Latitude | : | -3.125000 |
| Tanggal | Jan | Feb | Mar | Apr | Mei | Jun | Jul | Agu | Sep | Okt | Nov | Des |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 14.859 | 33.082 | 0.000 | 0.000 | 5.403 | 68.792 | 2.964 | 0.000 | 16.782 | 30.550 | 0.000 | 6.196 |
| 2 | 15.040 | 18.479 | 0.000 | 0.000 | 0.000 | 37.412 | 0.090 | 0.000 | 3.839 | 13.507 | 3.020 | 2.569 |
| 3 | 13.473 | 15.624 | 0.000 | 0.000 | 0.920 | 24.010 | 0.000 | 0.000 | 44.099 | 16.559 | 84.450 | 0.272 |
| 4 | 1.688 | 3.636 | 38.083 | 53.302 | 14.874 | 0.000 | 0.509 | 0.000 | 0.774 | 28.072 | 94.707 | 23.909 |
| 5 | 0.181 | 0.000 | 16.571 | 3.308 | 2.227 | 1.634 | 0.000 | 0.000 | 6.755 | 14.353 | 41.717 | 0.000 |
| 6 | 0.000 | 0.120 | 0.000 | 1.317 | 5.908 | 9.420 | 0.000 | 0.000 | 13.480 | 0.000 | 8.971 | 6.801 |
| 7 | 0.000 | 22.595 | 4.339 | 4.503 | 0.000 | 28.319 | 15.747 | 0.000 | 0.149 | 0.000 | 1.525 | 0.000 |
| 8 | 1.597 | 0.000 | 0.362 | 2.696 | 0.000 | 0.000 | 0.269 | 0.000 | 29.875 | 9.911 | 0.030 | 10.912 |
| 9 | 0.603 | 0.000 | 0.000 | 25.273 | 0.000 | 0.000 | 31.404 | 0.000 | 0.000 | 2.236 | 44.408 | 7.919 |
| 10 | 0.000 | 0.421 | 0.000 | 7.475 | 24.286 | 0.000 | 5.329 | 44.106 | 0.000 | 0.000 | 42.883 | 0.000 |
| 11 | 0.000 | 1.863 | 0.542 | 1.317 | 0.000 | 0.000 | 18.920 | 6.073 | 1.458 | 0.000 | 37.321 | 15.687 |
| 12 | 7.294 | 5.018 | 4.007 | 53.272 | 16.062 | 46.030 | 0.629 | 104.899 | 21.960 | 9.065 | 24.671 | 0.000 |
| 13 | 4.431 | 10.516 | 1.115 | 0.031 | 5.730 | 0.000 | 0.000 | 22.731 | 23.001 | 15.351 | 5.144 | 6.892 |
| 14 | 0.271 | 0.090 | 1.717 | 11.273 | 41.298 | 0.000 | 0.808 | 24.972 | 58.917 | 4.774 | 18.182 | 10.700 |
| 15 | 0.633 | 0.000 | 0.000 | 0.000 | 13.657 | 0.416 | 2.305 | 43.162 | 18.925 | 18.735 | 15.730 | 0.000 |
| 16 | 0.422 | 0.000 | 0.000 | 4.227 | 0.000 | 0.000 | 0.000 | 8.432 | 0.000 | 0.725 | 1.136 | 7.405 |
| 17 | 0.000 | 0.090 | 0.000 | 0.000 | 0.000 | 0.000 | 32.751 | 26.446 | 36.035 | 0.000 | 17.404 | 13.178 |
| 18 | 0.000 | 1.983 | 0.000 | 0.000 | 1.484 | 0.000 | 1.347 | 11.852 | 32.732 | 0.000 | 0.000 | 9.249 |
| 19 | 0.000 | 0.150 | 0.090 | 0.000 | 0.000 | 0.357 | 0.000 | 1.769 | 1.012 | 0.000 | 0.478 | 0.000 |
| 20 | 3.014 | 4.357 | 0.000 | 0.000 | 0.000 | 0.119 | 7.185 | 8.196 | 10.415 | 5.318 | 20.395 | 0.000 |
| 21 | 0.000 | 13.311 | 6.990 | 6.219 | 0.000 | 6.835 | 5.538 | 0.059 | 0.446 | 0.635 | 2.512 | 0.000 |
| 22 | 11.544 | 15.654 | 5.242 | 0.460 | 0.000 | 5.141 | 6.766 | 0.000 | 0.000 | 0.846 | 16.956 | 9.038 |
| 23 | 0.000 | 0.000 | 0.241 | 2.328 | 0.000 | 0.297 | 0.000 | 19.576 | 0.000 | 10.667 | 0.000 | 54.739 |
| 24 | 22.153 | 0.030 | 0.000 | 0.000 | 0.000 | 0.000 | 0.090 | 21.817 | 29.369 | 37.893 | 0.000 | 23.878 |
| 25 | 8.650 | 0.000 | 9.611 | 0.000 | 0.000 | 3.239 | 78.107 | 1.386 | 0.000 | 15.260 | 0.000 | 11.456 |
| 26 | 28.995 | 5.679 | 4.550 | 0.000 | 0.000 | 0.000 | 10.448 | 33.846 | 0.744 | 18.856 | 5.562 | 0.000 |
| 27 | 36.891 | 25.630 | 9.973 | 0.000 | 0.000 | 18.780 | 1.257 | 0.265 | 29.578 | 25.081 | 21.232 | 18.710 |
| 28 | 25.498 | 10.006 | 0.000 | 0.000 | 0.000 | 11.233 | 48.409 | 0.000 | 18.062 | 0.000 | 10.138 | 4.625 |
| 29 | 35.203 | - | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 0.000 | 3.065 | 13.115 | 6.041 | 17.350 |
| 30 | 18.928 | - | 11.027 | 0.000 | 0.000 | 2.266 | 0.000 | 14.446 | 28.531 | 23.238 | 29.934 | 4.322 |
| 31 | 0.000 | - | 2.019 | - | 0.000 | - | 0.000 | 0.000 | - | 18.463 | - | 17.440 |
| Total | 251.37 | 188.33 | 116.48 | 177.00 | 131.85 | 264.30 | 270.87 | 394.03 | 430.00 | 333.21 | 554.55 | 283.25 |
| Hari Hujan | 21.00 | 21.00 | 17.00 | 15.00 | 11.00 | 17.00 | 21.00 | 18.00 | 24.00 | 23.00 | 25.00 | 22.00 |
| Max | 36.891 | 33.082 | 38.083 | 53.302 | 41.298 | 68.792 | 78.107 | 104.899 | 58.917 | 37.893 | 94.707 | 54.739 |
| Avg | 8.11 | 6.73 | 3.76 | 5.90 | 4.25 | 8.81 | 8.74 | 12.71 | 14.33 | 10.75 | 18.48 | 9.14 |
Berdasarkan data hujan TRMM di Grid TRMM-1517, yang terletak di Desa Sinaka, Kecamatan Pagai Selatan, Kepulauan Mentawai, Provinsi Sumatera Barat, curah hujan tahunan yang terjadi pada tahun 2009 adalah sebesar 3,395.24 mm. Dengan jumlah hari hujan tahunan adalah 235 hari (64.38%). Curah hujan harian maksimum tahunan yang tercatat adalah sebesar 104.90 mm yang terjadi pada tanggal 12 Agustus 2009.
