Fiji's Weather, Month by Month

Fiji has a warm wet season from November to April and a cooler dry season from May to October — the Fiji Meteorological Service's own definition. Temperature barely moves across the year; rainfall moves enormously, and it moves differently depending on which side of Viti Levu you are standing on. Nadi in July averages about 50 mm of rain. Suva in July averages about 136 mm.

What is the weather in Nadi, month by month?

Nadi Airport is the reference station for the western, leeward side: Nadi town, Denarau, Momi Bay, Lautoka and, loosely, the Coral Coast. These are the World Meteorological Organization climate normals for the 1991–2020 period — the same averaging period the Fiji Meteorological Service declares as its own climatic normal.

Read the rain-days column rather than the millimetres if you are planning an outdoor event. July averages three wet days in the month. January averages fourteen. The temperature difference between those two months is about three degrees in the maximum — practically nothing.

What is the weather in Suva, month by month?

Suva sits on the windward southeast of Viti Levu and is a genuinely different climate. Same source, same 1991–2020 period, Laucala Bay station.

Suva's driest month is wetter than Nadi's wettest month but one. It also gets roughly 600 fewer hours of sunshine a year. None of this makes Suva a bad place to hold an event — it is the capital and the country's business centre — but it does mean an outdoor Suva programme needs a covered plan in a way that a Nadi one does not.

Why is western Fiji so much drier than the east?

Mountains. Viti Levu and Vanua Levu both carry peaks up to about 1,300 metres, and the southeast trade winds drop their moisture on the windward slopes before reaching the western lowlands.

The published contrast is stark. Nadi averages roughly 1,800–2,000 mm a year depending on which averaging period you use; Suva averages about 3,000 mm. Peer-reviewed work on Viti Levu's climatology puts it plainly: "the total annual rainfall at Nadi is only about 60% of that recorded at Suva."

That is why Fiji's resort belt — Nadi, Denarau, Momi Bay and along the Coral Coast — sits where it does. One honest caveat: there is no Fiji Met climate station on the Coral Coast itself, so we will not attach a rainfall figure to it. Treat it as part of the western, drier zone without a number.

When is cyclone season in Fiji?

1 November to 30 April, per the WMO Tropical Cyclone Operational Plan for the South Pacific that governs RSMC Nadi. Fiji Met and RSMC Nadi both describe it as November to April, with peak activity typically January to March.

On frequency, Fiji Met publishes that "on average, around two TCs affect Fiji every season". The reference period for that average is not published.

The warning terminology is worth learning because it runs the opposite way to the American convention many visitors know:

So in Fiji an alert comes first and a warning is the more urgent of the two. Fiji Met also issues Heavy Rain Warnings and Flash Flood Warnings; it does not publish numeric thresholds for those on its public pages.

The practical planning detail: cyclone risk is a real constraint but a narrow one. Two cyclones in a season across a country of 330 islands is a low probability of hitting any specific date, and a very high consequence if it does. That is an insurance problem, not a date problem — Cyclone Season in Fiji: What Travellers Should Know works through it.

How warm is the sea?

Warm enough to swim in year-round, and nobody publishes a single authoritative figure.

Fiji Met publishes sea surface temperature anomalies in its Ocean Outlook — how far above or below normal the water is — but not the underlying absolute climatology. Commercial sources that do publish monthly figures disagree with each other by about a degree at the summer peak.

What we can say honestly: Fijian waters run approximately 26–29°C across the year, warmest around February to April and coolest around August to September. That is a swimmable range in every month, and a one-degree uncertainty is not going to change anyone's packing.

What does the 2026-27 season look like?

This is the part that is unusual this year, and it is worth knowing before you set a date.

A strong, possibly historic El Niño is under way. NOAA's Climate Prediction Center, in its discussion of 10 September 2026, carries an El Niño Advisory and states there is "a greater than 90% chance of a very strong event" through late 2026 and into 2027, with "a 75% chance of a historic event that would exceed the strength of previous El Niño events dating back to 1950" over October to December. The WMO said on 3 September 2026 that El Niño "is firmly established and is expected to strengthen further". NIWA, Australia's Bureau of Meteorology and the Fiji Meteorological Service all agree.

For Fiji specifically, the Fiji Met Climate Outlook issued 28 August 2026 states: "A strong El Niño event is active in the tropical Pacific Ocean" and "Rainfall over December 2026 to February 2027 is likely to be below normal throughout the Fiji Group and for Rotuma." NIWA's Island Climate Update of 16 July 2026 flagged a substantial risk of Fiji receiving less than 25% of normal rainfall over August to October 2026.

In short: a drier-than-normal wet season is forecast. What that means for cyclones is a separate question, and one we will not answer for you — the Fiji Met 2026-27 Tropical Cyclone Seasonal Outlook has not been published yet as at 17 September 2026. It is usually issued around October, ahead of the 1 November season start. Anyone quoting you a 2026-27 Fiji cyclone number today is quoting a number that does not exist.

Weather and climate information here is a guideline only. Confirm current forecasts, outlooks and warnings with the Fiji Meteorological Service before travelling or committing to a date. Last reviewed 17 September 2026.

So when should you go?

For the driest, most reliable weather: June to September in the west. Nadi averages three to five rain days a month across that window, with the most sunshine hours of the year in August and October.

For the best value and still-good weather: May and October, the shoulders. May in Nadi averages 92 mm across 4.9 rain days; October averages 87 mm across 6.5.

If you must travel between November and April: go west, not east, and build a covered contingency into anything outdoors. December in Nadi averages 210 mm; December in Suva averages 344 mm.

If you are event planning: read this alongside When to Hold a Conference in Fiji and, for weddings, The Best Time to Get Married in Fiji. The rest of the practical picture — money, health, connectivity, safety — is in Practical Fiji.

A note on comparing figures

If you see Fiji rainfall numbers elsewhere that do not match these, the reason is almost always the averaging period or the rain-day threshold. The older 1961–1990 WMO normals give Nadi 299 mm in January against 365.2 mm for 1991–2020 — a 22% difference for the same month. And the older set counts a rain day as 0.1 mm or more, while the newer counts 1.0 mm or more, which is why older tables show more rain days. Mixing the two produces nonsense. The figures above are all 1991–2020, at the 1.0 mm threshold.