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coastya
Satellite view of Trench’s Beach; the pin marks the beach
Satellite view: Sentinel-2 cloudless · EOX, CC BY 4.0, colour-adjusted by Coastya. About 6 km of coast; the pin marks the beach.

Beach

Trench’s Beach

Solomon IslandsGuadalcanal Province · Solomon Islands · Pacific Ocean

-9.4167, 159.9000 · Nggosi, 3 km

  • 30°Sea · January
  • 29°High · December
  • 6.5 hSunshine · November
The dot marks Trench’s Beach. About 140 km of coast, north at the top.

Your month at the beach

Trench’s Beach in October

  • 28°CAir, daytime high24°C at night
  • 29°CSea temperature
  • 6.3 hSunshine a day
  • 18 daysRainy days in the month160 mm in total
  • 17 km/hAverage wind

Averages for 1991–2020. A rainy day is a day with at least 1 mm of rain.

The beach itself

  • 1Places to stay within 5 kmHotels, guest houses, apartments and campsites · OpenStreetMap
  • 17 kmAirport: Honiara International Airport (HIR)In a straight line; by road it is further

No reliable information yet on: bathing water quality, wheelchair access, lifeguards.

October from 2020 to 2025

In October 2025 the sea averaged 29.7 °C — 0.9 °C above the 1991–2020 average.

Sea temperature 2025: +0.9 °C

1991–2020 average: 28.8 °C

Air, daytime high 2025: +0.7 °C

1991–2020 average: 28.2 °C

Each bar is one year. Above the dashed line (the 1991–2020 average), that month was warmer than usual; below it, cooler.

When to go

1991–2020 averages
Warmest seaJanuary and December30 °C
Most sunshineNovember and December6 h of sun a day
Least rainAugust and September107 mm in the month

The year at a glance

  1. Jan30°6 h263 mm
  2. Feb30°6 h305 mm
  3. Mar30°6 h277 mm
  4. Apr30°6 h220 mm
  5. May29°6 h214 mm
  6. Jun29°6 h143 mm
  7. Jul29°5 h135 mm
  8. Aug28°6 h114 mm
  9. Sep28°6 h107 mm
  10. Oct29°6 h160 mm
  11. Nov29°6 h166 mm
  12. Dec30°6 h221 mm
8°C20°C32°C

Each card is a month. The colour is the sea temperature, on the same scale as the map; in bold, the two best months for each.

Sea temperature

1991–2020 averages
28°29°30°JanFebMarAprMayJunJulAugSepOctNovDecJan: 30°Feb: 30°Mar: 30°Apr: 30°May: 29°Jun: 29°Jul: 29°Aug: 28°Sep: 28°Oct: 29°Nov: 29°Dec: 30°30°28°
8°C20°C32°C

Climate through the year

1991–2020 averages
24°26°28°JanFebMarAprMayJunJulAugSepOctNovDecJan: 27 °C (High 28° / Low 25°)Feb: 26 °C (High 28° / Low 25°)Mar: 26 °C (High 28° / Low 25°)Apr: 26 °C (High 28° / Low 25°)May: 26 °C (High 28° / Low 25°)Jun: 26 °C (High 28° / Low 25°)Jul: 26 °C (High 27° / Low 24°)Aug: 26 °C (High 28° / Low 24°)Sep: 26 °C (High 28° / Low 24°)Oct: 26 °C (High 28° / Low 24°)Nov: 27 °C (High 28° / Low 25°)Dec: 27 °C (High 29° / Low 25°)27°26°
AverageLow – High
8°C20°C32°C

Rain

0 mm100 mm200 mm300 mmJanFebMarAprMayJunJulAugSepOctNovDecJan: 263 mmFeb: 305 mm305Mar: 277 mmApr: 220 mmMay: 214 mmJun: 143 mmJul: 135 mmAug: 114 mmSep: 107 mm107Oct: 160 mmNov: 166 mmDec: 221 mm

Sunshine

0 h2 h4 h6 hJanFebMarAprMayJunJulAugSepOctNovDecJan: 5.9 hFeb: 5.9 hMar: 6.2 hApr: 6.2 hMay: 6.1 hJun: 5.5 hJul: 5.0 h5.0Aug: 5.5 hSep: 6.0 hOct: 6.3 hNov: 6.5 h6.5Dec: 6.5 h6.5

Sunshine hours are estimated from measured solar radiation, not observed directly.

Month by month

1991–2020 averages

Every month at Trench’s Beach: air, sea, rain and sunshine. Averages for 1991–2020.

Every month at Trench’s Beach: air, sea, rain and sunshine. Averages for 1991–2020.
MonthHigh°CLow°CSea°CRainmmRainy daysdaysSunshineh/dayWindkm/h
Januarywarmest sea282530263225.914
February282530305215.915
March282530277226.214
April282530220196.212
May282529214196.115
June282529143175.519
July272429135175.022
August282428114175.522
September282428107166.021
October282429160186.317
November282529166186.514
December292530221206.512

Swipe sideways to see the other columns.

Photos

Photos shared by their authors on Wikimedia Commons, with its colours adjusted.

Trench’s Beach: PanoramaEdenBayBeach
Photo: Phenss · Wikimedia Commons · CC BY-SA 4.0 · stylised; this version keeps the same licence.
Trench’s Beach: PanoramaKakabonaBeach
Photo: Phenss · Wikimedia Commons · CC BY-SA 4.0 · stylised; this version keeps the same licence.

About these numbers

Averages are for 1991–2020; the recent years (2020–2025) are what actually happened. Neither is today's weather.

WhatWhere it comes from Nearest measurement
Air, rain and sunshineNASA POWER14 km away
Sea temperatureNOAA OISST v2.1, 1991–20205 km away
2020–2025, month by monthNASA POWER · NOAA OISST v2.114 km away
Lifeguards and places to stayOpenStreetMapwithin 1–5 km
Nearest airportOurAirportsstraight-line distance
Image at the topSentinel-2 cloudless (EOX)at this spot

See every data source →