Seasonal Forecast
ENSO Forecast [ Mar to May ]
LA NINA
NEUTRAL
EL NINO
WEAK NEUTRAL
Provided by APEC Climate Center
ENSO Advisory
ENSO Outlook has returned to INACTIVE. An INACTIVE status means that ENSO is neutral and there are no clear indications that an El Niño or La Niña event will develop in the coming months. Climatologists are monitoring the tropical Pacific for any signs of developing ENSO events, regardless of the ENSO Outlook status.
Seasonal Forecast
>> Analysis of RAINFALL in last 3 months and forecasts for next 6 months
| Island Group | Nov to Jan [Observed] |
Mar to May [Forecast] |
Jun to Aug [Forecast] |
|---|---|---|---|
| Tongatapu and 'Eua | 47% | 36% | |
| Ha'apai | 39% | 37% | |
| Vava'u | 40% | 40% | |
| Niuafo'ou | 34% | 44% | |
| Niuatoputapu | 36% | 38% |
DRIER
NORMAL
WETTER
Rainfall Advisory
For the next 3 to 6 months, we are expecting normal to above normal rainfall for all of Tonga.
>> Analysis of TEMPERATURE in last 3 months and forecasts for next 6 months
| Island Group | Nov to Jan [Observed] |
Mar to May [Forecast] |
Jun to Aug [Forecast] |
|---|---|---|---|
| Tongatapu and 'Eua | 60% | 70% | |
| Ha'apai | 60% | 70% | |
| Vava'u | 57% | 76% | |
| Niuafo'ou | 47% | 76% | |
| Niuatoputapu | 47% | 76% |
WARMER
NORMAL
COOLER
Temperature Advisory
Expecting warmer than normal temperature over the next 3 to 6 months for all island groups