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Toamasina weather

Atsinanana · 345,107 inhabitants · Thursday, October 29 · updated 20:01

Air: Good Moderate storm risk · Today, Tomorrow, Sat

26°

Mainly clear

Feels like 36°C

Wind

28 km/h

Gusts

41 km/h

Humidity

85 %

Pressure

1011 hPa

Clouds

25 %

Storm

Rise 05:04 Set 17:47 Day 12 h 43 min UV 10 · Very high

Morning, afternoon, evening

Trend

Evening

Partly cloudy

26°25°

Feels like 36°

Wind ↑ N 28 km/h

Gusts 41 km/h

Humidity 85 %

💧 0.1 mm

21:00

25°

0.1mm

NNE 9

00:00

25°

0.8mm

NNE 24

Toamasina forecast in charts · next 7 days

The week ahead: highs and lows

≈ A week close to the usual temperatures

Highs Lows Usual for the season (1991–2020 average)

Hourly detail

Temperature (°C) Rain (mm) Wind (km/h)

Toamasina climate: what a normal year looks like

A normal year brings roughly 2,220 mm of rain — more than 91% of the towns of 20,000+ people we compared it with.

The hottest stretch is January, when afternoons average 29 °C; the coldest is July, when nights average 17 °C.

From 11 h 02 min of daylight in late June to 13 h 13 min in late December.

The coming week looks normal for October: forecast highs average 26 °C, against a usual 26 °C.

30-year averages (1991–2020)
Month	Typical high	Typical low	Rainfall
Jan	30 °C	23 °C	336 mm
Feb	29 °C	23 °C	346 mm
Mar	29 °C	23 °C	320 mm
Apr	28 °C	22 °C	163 mm
May	26 °C	20 °C	153 mm
Jun	24 °C	18 °C	137 mm
Jul	23 °C	17 °C	157 mm
Aug	23 °C	17 °C	117 mm
Sep	24 °C	18 °C	91 mm
Oct	26 °C	20 °C	96 mm
Nov	27 °C	21 °C	90 mm
Dec	29 °C	23 °C	214 mm
Whole year	26 °C	20 °C	2,220 mm

Source: our own processing of the ERA5 reanalysis (Copernicus/ECMWF) for 18.15° S, 49.40° E, 1991–2020. ERA5 averages over a 0.25° grid (about 25 km): hills, a coastline or the heat of the city itself can shift local values by a degree or two.

Air you breathe in Toamasina: pollution and pollen

1/6

Good

European Air Quality Index (EAQI), from Copernicus CAMS

PM2.56µg/m³

PM1010µg/m³

Copernicus CAMS model, updated several times a day.

Rain radar around Toamasina

Rain observed over the last two hours by official weather radars around Toamasina, followed by the radar forecast for the next hour where the weather service provides one.

Rain radar Last two hours, then forecast where available · drag the timeline

No open weather radar covers Toamasina yet: the map shows our hour-by-hour rain forecast (ICON, GFS).

Moon over Toamasina

Waning gibbous

87 % illuminated · 18.3 days

Rise 03:14 Set 14:31

Fri 30/10 79%

Sat 31/10 69%

Sun 1/11 59%

Mon 2/11 49% Last quarter

Tue 3/11 38%

Wed 4/11 28%

Thu 5/11 19%

Fri 6/11 12%

Sat 7/11 6%

Sun 8/11 2%

Mon 9/11 0%

Tue 10/11 1% New moon

Moonrise and moonset in local time (Indian/Antananarivo); phase and lit fraction from a synodic calculation.

Look up a past day in Toamasina

Curious about the weather in Toamasina on a given day? Choose a date: we read it from the ERA5 reanalysis (ECMWF / Copernicus C3S), which runs until about a week ago.

Toamasina weather at a glance

This page gathers everything about the weather in Toamasina, Atsinanana: conditions now, the forecast for each part of the day and the trend for the coming week. At the moment the sky is “mainly clear”, it is 26 °C (feels like 36 °C) and the wind blows at 28 km/h.

Expected range today: 25 °C to 26 °C and a dry sky; keep an eye on thunderstorms. The forecast comes from the AtmoAtlas engine, which combines ECMWF-AIFS, NOAA GFS and DWD ICON, adjusts cloud cover with METAR reports and uses convective energy (CAPE) to flag storms.

Other big cities nearby

Antananarivo 214 km 20°

Toamasina weather data for developers

Use the Toamasina forecast in your own website or app: one JSON call returns weather, air quality, tides and sun and moon times. The free key needs no card.

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Where does this forecast come from? Our engine, checked every day against 1125 weather stations