Nasinu weather in September

In September, Nasinu sees average daytime highs of 24°C and overnight lows near 22°C, with 156 mm of rain across 18.2 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 11% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 36 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Nasinu's 5th-clearest and 4th-windiest month. For the whole year in context, see Nasinu's year-round climate.

Daytime high
24°
10th warmest
Overnight low
22°
3rd coldest
Rainfall
156 mm
18.2 wet days
Daylight
11 h 54 min
7:03 AM – 6:57 PM
Cloud cover
70%
5th clearest
Wind
17 km/h
4th windiest
Solar energy
4.78 kWh/m²
Travel score
5.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Nasinu reaches about 24°C in the afternoon and slips back to 22°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 26°C. Set against its neighbours, September runs on par with August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12422
22422
32422
42422
52422
62422
72422
82422
92422
102422
112422
122422
132422
142422
152422
162422
172422
182422
192422
202422
212422
222422
232422
242422
252422
262422
272422
282522
292522
302522

Nasinu weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°30526134.0
Feb28° / 25°24324.312.63.9
Mar28° / 25°2622712.13.9
Apr27° / 25°24123.811.64.3
May26° / 24°16619.411.25.2
Jun25° / 23°14617.110.95.6
Jul24° / 22°10415.7116.0
Aug24° / 22°14016.811.45.8
Sep24° / 22°15618.211.95.4
Oct25° / 23°2112112.45.0
Nov26° / 24°19222.612.84.6
Dec27° / 24°27625.813.14.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13664
23664
33763
43763
53763
63862
73862
83763
93763
103862
113862
123763
133763
143763
153664
163565
173466
183466
193466
203367
213367
223367
233367
243268
253268
263268
273268
283268
293367
303367

Chance of precipitation in September

Any precipitation

Nasinu gets around 156 mm of rain over 18.2 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 62% and peaks near 65% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
155
256
356
457
558
658
759
860
961
1062
1163
1264
1364
1465
1565
1665
1765
1865
1965
2064
2164
2263
2362
2462
2561
2661
2761
2861
2961
3062

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 42% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1213253921
2212253922
3212253923
4212253824
5111243925
6110243925
7110243926
819233927
919233928
1018223929
1117224030
1217214031
1306214132
1406214132
1505214232
1605214232
1704204332
1804204332
1904204431
2004214431
2104214530
2204214530
2304214529
2405214529
2505224528
2605224528
2706224428
2806224428
2906224329
3007214330

Wind in September

Winds average 17 km/h in September.

Across September, daily wind ranges from about 16 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
817light breeze
917light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1417light breeze
1517light breeze
1617light breeze
1717light breeze
1817light breeze
1917light breeze
2017light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 36 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over September. Sunrise moves from 7:16 AM to 6:51 AM, and sunset from 6:55 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.67:166:55
211.77:166:55
311.77:156:55
411.77:146:55
511.77:136:56
611.77:126:56
711.77:116:56
811.87:106:56
911.87:106:56
1011.87:096:56
1111.87:086:56
1211.87:076:57
1311.87:066:57
1411.97:056:57
1511.97:046:57
1611.97:036:57
1711.97:026:57
1811.97:016:58
1912.07:016:58
2012.07:006:58
2112.06:596:58
2212.06:586:58
2312.06:576:58
2412.06:566:59
2512.16:556:59
2612.16:546:59
2712.16:546:59
2812.16:536:59
2912.16:526:59
3012.16:517:00

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.78 kWh/m².

For context, solar energy here swings from a low near 3.46 kWh/m² to a high of 6.2 kWh/m² in January across the year — September's 4.78 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.7Bright
94.7Bright
104.7Bright
114.7Bright
124.7Bright
134.8Bright
144.8Bright
154.8Bright
164.8Bright
174.8Bright
184.8Bright
194.9Bright
204.9Bright
214.9Bright
224.9Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
Planning a trip in September

Hazard calendar for Nasinu

In seasonPeak

None of Nasinu's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Nasinu sits in the South Indian Ocean cyclone belt; the season peaks January–March.

Cyclone
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Nasinu?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.4
Sightseeing
4th-best month of the year
4.7
Beach & pool
5th-best month of the year

September is a reasonable time to visit Nasinu for sightseeing.

What to pack for Nasinu in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Nasinu sees daytime highs around 24°C and nights near 22°C. Pack rain gear. Worth having: light clothes and sun protection. About 18 days see rain.

rain gearlight clothessun protection

Sea temperature near Nasinu in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 13 km away) is warmest in February at about 29°C and coldest in August near 25°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb29Tropical
Mar29Tropical
Apr28Tropical
May27Warm
Jun26Warm
Jul26Warm
Aug25Warm
Sep25Warm
Oct26Warm
Nov27Warm
Dec28Warm

UV index in Nasinu in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Nasinu peaks around February 13 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 13UV 17Jul 13UV 8
UV index (midday)Level
Jan16Extreme
Feb17Extreme
Mar15Extreme
Apr11Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep13Extreme
Oct15Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Nasinu?

Nasinu sits at 18.1°S, 178.5°E, 31 m above sea level, in Fiji. The nearest listed city is Lami, 12 km away.

LevukaSigatokaNadiLautokaLabasa

Topography around Nasinu

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Nasinu.

Within 3 km, the terrain around Nasinu has only modest variations in elevation — a maximum elevation change of 131 m around an average of 23 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,287 m.

The land around Nasinu is covered by grassland (43%), trees (32%) and artificial surfaces (20%) within 3 km, trees (42%) and water (30%) within 16 km, and water (65%) and trees (31%) within 80 km.

3 km
131 m
16 km
480 m
80 km
1,287 m
treesgrasslandartificial surfacesbare terrainwatermangroves
September weather nearby: Lami 12 km · Suva 12 km · Levuka 85 km · Sigatoka 107 km · Nadi 120 km · Lautoka 123 km · Labasa 203 km · Nuku‘alofa 741 km

Fiji travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type I
240 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,642
2025
Safe drinking water
42%
of population, 2024
Homicide rate
2.1
per 100k, 2023
Road deaths
13.5
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 45%Hindu 28%other Christian 10%Roman Catholic 9%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Nasinu (-18.0705°, 178.5131°, elevation 31 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).