NOAA SST and Climate Indices Dashboard
Local HTML dashboard generated from NOAA/CPC/BOM/BAS sources
Maps are pulled from NOAA OSPO sources where available. Monthly tables combine NOAA/CPC/PSL/BAS indices with BOM weekly IOD and SOI aggregated to monthly means and current month-to-date means.
Latest SST
Latest SST Anomaly
Last 5 Years - Monthly Indices
| month | Niño 1+2 anomaly (CPC OISST, °C) | Niño 3 anomaly (CPC OISST, °C) | Niño 4 anomaly (CPC OISST, °C) | Niño 3.4 anomaly (CPC OISST, °C) | Niño 3.4 anomaly (PSL HadISST, °C) | SAM Marshall (raw) | SAM CPC (standardised) | SAM CPC daily mean (standardised) | IOD BOM (monthly/MTD) | SOI BOM (monthly/MTD) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2023-09 | 2.82 | 2.07 | 1.10 | 1.53 | 1.65 | -1.22 | -1.05 | -1.02 | 1.17 | |
| 2023-10 | 2.46 | 2.00 | 1.24 | 1.59 | 1.59 | 1.68 | 0.54 | 0.51 | 1.72 | |
| 2023-11 | 2.22 | 2.08 | 1.44 | 1.90 | 2.01 | 0.52 | 0.10 | 0.09 | 1.58 | |
| 2023-12 | 1.41 | 2.06 | 1.39 | 1.99 | 1.81 | 2.28 | 1.51 | 1.45 | 1.27 | |
| 2024-01 | 0.83 | 1.87 | 1.45 | 1.78 | 1.71 | 2.84 | 0.92 | 0.89 | 0.80 | 2.39 |
| 2024-02 | 0.92 | 1.47 | 1.22 | 1.53 | 1.47 | 2.74 | 1.04 | 1.00 | 0.19 | -10.63 |
| 2024-03 | 0.28 | 1.03 | 0.93 | 1.24 | 1.10 | 1.05 | -0.06 | -0.06 | 0.32 | -1.26 |
| 2024-04 | 0.08 | 0.62 | 0.81 | 0.81 | 0.93 | 1.48 | 1.00 | 0.97 | 0.27 | -4.65 |
| 2024-05 | -0.68 | -0.03 | 0.70 | 0.31 | 0.41 | 1.70 | -0.07 | -0.07 | 0.37 | -0.98 |
| 2024-06 | -0.65 | -0.14 | 0.65 | 0.24 | 0.25 | 1.47 | 0.21 | 0.20 | 0.23 | -3.40 |
| 2024-07 | -0.41 | -0.08 | 0.60 | 0.21 | 0.20 | 0.56 | -0.60 | -0.58 | -0.28 | -0.96 |
| 2024-08 | -0.34 | -0.25 | 0.48 | -0.07 | 0.02 | -4.44 | -2.15 | -2.08 | 0.10 | -3.97 |
| 2024-09 | -0.68 | -0.16 | 0.30 | -0.15 | -0.11 | 0.66 | 0.10 | 0.09 | -0.06 | 6.08 |
| 2024-10 | -0.32 | -0.05 | 0.15 | -0.28 | -0.24 | -0.73 | -0.57 | -0.55 | -0.70 | 1.62 |
| 2024-11 | 0.26 | -0.03 | 0.14 | -0.14 | -0.05 | 3.37 | 1.02 | 0.98 | -0.67 | 3.43 |
| 2024-12 | -0.10 | -0.35 | -0.37 | -0.62 | -0.58 | -1.54 | -0.83 | -0.80 | -0.22 | 12.76 |
| 2025-01 | -0.20 | -0.18 | -0.63 | -0.71 | -0.76 | 1.40 | -0.08 | -0.08 | -0.20 | 2.95 |
| 2025-02 | 0.69 | 0.11 | -0.58 | -0.35 | -0.39 | 0.31 | -0.27 | -0.26 | 0.24 | 10.45 |
| 2025-03 | 1.15 | 0.51 | -0.36 | 0.10 | 0.05 | 3.39 | 0.73 | 0.70 | 0.31 | 6.14 |
| 2025-04 | 0.63 | -0.03 | -0.17 | -0.16 | -0.08 | 2.68 | 1.14 | 1.09 | 0.23 | 9.41 |
| 2025-05 | 0.16 | -0.18 | 0.01 | -0.04 | -0.08 | 0.89 | 0.51 | 0.49 | 0.35 | -1.47 |
| 2025-06 | 0.61 | -0.01 | 0.23 | 0.04 | 0.01 | 0.13 | 0.21 | 0.20 | -0.07 | 4.03 |
| 2025-07 | 0.46 | 0.04 | 0.05 | -0.06 | -0.03 | 1.16 | 0.75 | 0.72 | -0.19 | 3.53 |
| 2025-08 | 0.23 | -0.24 | -0.06 | -0.33 | -0.11 | 1.52 | 0.36 | 0.34 | -0.97 | 3.15 |
| 2025-09 | -0.18 | -0.41 | -0.27 | -0.44 | -0.30 | -1.11 | -0.71 | -0.69 | -1.21 | 3.62 |
| 2025-10 | -0.04 | -0.35 | -0.33 | -0.48 | -0.50 | -2.98 | -1.24 | -1.19 | -1.44 | 4.72 |
| 2025-11 | -0.34 | -0.60 | -0.52 | -0.68 | -0.68 | -2.56 | -1.32 | -1.28 | -1.11 | 13.97 |
| 2025-12 | -0.43 | -0.70 | -0.23 | -0.61 | -0.49 | -0.64 | -1.14 | -1.10 | -0.18 | 1.96 |
| 2026-01 | -0.29 | -0.50 | -0.04 | -0.54 | -0.54 | 2.26 | 0.85 | 0.81 | 0.15 | 8.45 |
| 2026-02 | 0.92 | -0.01 | 0.23 | -0.20 | -0.25 | 1.90 | 0.49 | 0.47 | 0.55 | 10.81 |
| 2026-03 | 1.29 | 0.24 | 0.34 | 0.03 | -0.12 | 0.96 | 0.49 | 0.47 | 0.34 | 12.80 |
| 2026-04 | 1.52 | 0.55 | 0.82 | 0.47 | 0.38 | 0.31 | -0.12 | -0.12 | 0.00 | -5.18 |
| 2026-05 | 1.81 | 1.14 | 0.98 | 0.94 | 0.80 | 1.96 | 0.54 | 0.52 | -0.19 | -11.00 |
| 2026-06 | 2.83 | 1.75 | 1.23 | 1.55 | 1.37 | 5.93 | 2.51 | 2.41 | -0.12 | -22.65 |
| 2026-07 | 3.56 | 2.33 | 1.06 | 2.03 | 1.84 | 0.39 | 0.38 | 0.12 | -27.33 | |
| 2026-08 | -0.46 | 0.41 | -22.91 |
ONI (Seasonal, last 5 years)
| period | oni |
|---|---|
| 2021 NDJ | -0.83 |
| 2022 DJF | -0.76 |
| 2022 JFM | -0.68 |
| 2022 FMA | -0.77 |
| 2022 MAM | -0.86 |
| 2022 AMJ | -0.83 |
| 2022 MJJ | -0.73 |
| 2022 JJA | -0.70 |
| 2022 JAS | -0.78 |
| 2022 ASO | -0.87 |
| 2022 SON | -0.89 |
| 2022 OND | -0.82 |
| 2022 NDJ | -0.70 |
| 2023 DJF | -0.55 |
| 2023 JFM | -0.33 |
| 2023 FMA | -0.11 |
| 2023 MAM | 0.19 |
| 2023 AMJ | 0.46 |
| 2023 MJJ | 0.73 |
| 2023 JJA | 1.00 |
| 2023 JAS | 1.25 |
| 2023 ASO | 1.50 |
| 2023 SON | 1.74 |
| 2023 OND | 1.90 |
| 2023 NDJ | 1.99 |
| 2024 DJF | 1.84 |
| 2024 JFM | 1.53 |
| 2024 FMA | 1.18 |
| 2024 MAM | 0.77 |
| 2024 AMJ | 0.43 |
| 2024 MJJ | 0.18 |
| 2024 JJA | 0.06 |
| 2024 JAS | -0.04 |
| 2024 ASO | -0.12 |
| 2024 SON | -0.19 |
| 2024 OND | -0.29 |
| 2024 NDJ | -0.43 |
| 2025 DJF | -0.46 |
| 2025 JFM | -0.22 |
| 2025 FMA | -0.08 |
| 2025 MAM | 0.02 |
| 2025 AMJ | -0.04 |
| 2025 MJJ | -0.02 |
| 2025 JJA | -0.11 |
| 2025 JAS | -0.26 |
| 2025 ASO | -0.43 |
| 2025 SON | -0.57 |
| 2025 OND | -0.61 |
| 2025 NDJ | -0.60 |
| 2026 DJF | -0.39 |
| 2026 JFM | -0.21 |
| 2026 FMA | 0.11 |
| 2026 MAM | 0.46 |
| 2026 AMJ | 0.95 |
| 2026 MJJ | 1.39 |
Index History Charts
ENSO Region SST Anomalies
Latest available value is shown beside each series in the legend.
Niño 1+2 anomaly (CPC OISST, °C) +3.56 (2026-07)Niño 3 anomaly (CPC OISST, °C) +2.33 (2026-07)Niño 4 anomaly (CPC OISST, °C) +1.06 (2026-07)Niño 3.4 anomaly (CPC OISST, °C) +2.03 (2026-07)Niño 3.4 anomaly (PSL HadISST, °C) +1.37 (2026-06)
Standardised SAM / AAO
CPC monthly index and monthly mean calculated from the CPC daily series.
SAM CPC (standardised) +0.39 (2026-07)SAM CPC daily mean (standardised) -0.46 (2026-08)
Marshall SAM
Station-pressure-based Marshall index; not directly comparable in magnitude with CPC.
SAM Marshall (raw) +1.84 (2026-07)
BOM Indian Ocean Dipole
Monthly mean; the newest incomplete month is month-to-date.
IOD BOM (monthly/MTD) +0.41 (2026-08)
BOM Southern Oscillation Index
Monthly mean; the newest incomplete month is month-to-date.
SOI BOM (monthly/MTD) -22.91 (2026-08)
Oceanic Niño Index
Three-month running Niño 3.4 anomaly; ±0.5°C thresholds require persistence for event classification.
ONI +1.39 (2026 MJJ)