Fiji Weather Updates

The following are provided by the Fiji Meteorological Service: Check their website for any current warnings or alerts.

Fiji Climate Outlook for August 2022
In Brief
· During August 2022 period, there is little guidance provided as there is almost equal chances of below normal, normal and above normal rainfall across the Fiji Group, while normal or below normal rainfall is favored for Rotuma.

· For August to October 2022 period, normal or above normal rainfall is likely across the Fiji Group, while normal or below normal rainfall is favored for Rotuma.

· During November 2022 to January 2023 period, near normal or above normal rainfall is likely across the Fiji Group.

· The air temperatures are likely to be above normal across the country during August and the August to October 2022 period.

· The tropical Pacific Ocean is in an ENSO-neutral state.

· Majority of the global climate models predict continuation of the ENSO-neutral state for the rest of 2022. However, some models also predict emergence of La Niña towards the end of the year.

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Fiji Ocean Outlook for July 2022
In Brief

· The tropical Pacific Ocean is in an ENSO-neutral state, that is, neither El Niño nor La Niña.

· Above normal sea surface temperatures (SSTs) are likely to be observed within the Fiji Waters during the August to October 2022 period.

· The average position of the 29°C Convergence Zone is likely to be located to the far north of Fiji during the August to October 2022 period.

· The 4, 8 and 12 weeks coral bleaching outlooks are at ‘No Stress’ across the Fiji Waters.

· Sea level is likely to be above normal across most of Fiji’s EEZ during the August to October 2022 period.


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Early Action Rainfall Watch for July 2022
In Brief

Rainfall Status: Majority of the stations across Fiji were under Very Wet or at No Alert status, for the 6 and 12-month timescale. Interior of Viti Levu is on a Drought Warning, for the 3months, while Rotuma was the lone station under Drought Watch for the 3 and 12-month timescale.

Rainfall Outlook: For fortnightly, dry conditions are likely during the first half, with wet conditions favorable during the second half. Overall, wet conditions is still favored for July. For Rotuma, there is no alert for fortnightly and July forecasts. 

For July to September period, generally wet conditions are favoured for the Fiji Group, while No Alert is favored for Rotuma.

El Niño-Southern Oscillation (ENSO) Status: Neutral, that is, neither El Niño nor La Niña.

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El Niño-Southern Oscillation (ENSO) Update – July 2022
In Brief

· The tropical Pacific Ocean has returned to ENSO-neutral state, that is, neither El Niño nor La Niña;

· Majority of the global climate models predict continuation of the ENSO-neutral state for the rest of 2022;

· The model predictions for later part of the year at this time have lower accuracy;

· Thus, it is difficult to ascertain with accuracy the ENSO state for later half of the year;

· FMS will continue to monitor the ENSO conditions closely and provide updates accordingly;

· While ENSO-neutral state has returned, Fiji may continue to feel the impact of the past La Niña event for another 2-6 months due to the lag effects.


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Fiji Climate Summary for May 2022
In Brief
The 2021-22 La Niña continues but is gradually weakening.
May was dominated by moist southeast trade winds, moist easterly wind flows together with a series of troughs of low-pressure systems. Rainfall varied during May, with above-average to well below-average rainfall being recorded across the country. The majority of the stations in the Western Division, Eastern Division and Rotuma experienced drier than usual conditions.
Overall, out of the 23 rainfall monitoring stations, 5 recorded above average, 10 average, 7 below average and Lakeba was the lone station that recorded well below average rainfall.
A trough of low pressure moved over the Fiji group from the west on the 28th, which resulted in Viwa recording its significant 24-hour rainfall of 115mm.
On temperatures, the highest day-time temperature was observed at Navua with 35.1°C on the 23rd, followed by RKS Lodoni with 34.6°C on the 6th, Saqani with 33.2°C on the 2nd and Labasa Airfield with 32.9°C on the 31st.
The lowest nighttime temperature of 14.0°C was recorded at Monasavu on the 13th, followed by both Yaqara and Nadarivatu with 14.8°C on the 14th, Lomaivuna with 15.3°C on the 14th, Rarawai Mill (Ba) with 16.4°C on the 17th, both Sigatoka and Vaturekuka (Labasa) with 16.8°C on the 18th and 15th, respectively and RKS Lodoni with 16.9°C on the 14th and Penang Mill with 17.0°C on the 15th.
Southeasterly winds were dominant at Nadi Airport while easterly winds were the most observed winds at Nausori Airport during May, with light to moderate wind strength recorded at both stations (Figure 8).
Warmer than normal sea surface temperature anomalies were observed across most of the Fiji Group (Figure 9).


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