Recent news

Bulletin 6 | 13 October 2025

This is the last bulletin of OPIDIN in the flooding season 2025-2026. The water level in Mopti reached a peak of 642 on 6 October. The peak of the flood this year is much lower than last year, and comparable to the floods in the years 2020-2021.

Bulletin 5 | 22 September 2025

The water level in Mopti rose by 18 cm, from 615 cm on 10 September to 633 cm on 19 September. The water level rise has levelled off considerably and it is expected that the water level will only rise a little in the coming weeks. The peak of the flood is expected to be reached in Mopti around half of October. The flood will be comparable with the floods in the years 2020-2021.

Bulletin 4 | 10 September 2025

The water level in Mopti has risen by 45 cm over the past week, and the rise in water levels has levelled off. The peak level is nearly reached. OPIDIN predicts that the water level in Mopti will only slightly increase the coming weeks and reach a moderate peak level as high as four years ago (2020, 2021), years with a moderate flood.

Bulletin 3 | 27 August 2025

The water level in Mopti has risen by 76 m within the past two weeks. It is likely that the peak flood in 2025 will be moderate, much lower than the high flood last year and comparable or higher than two year before.

Bulletin 2 | 14 August 2025

The water level in Mopti has risen by 60 m within the past two weeks. It is likely that the peak flood in 2025 will be moderate, much lower than the high flood last year but still higher than two year before.

Bulletin 1 | 4 August 2025

The new 2025-2026 flood season has begun and from now on OPIDIN offers regular bulletins until the water level in Mopti has reached its peak level. The water level in Mopti is at a high level at this time of the flooding season, but rainfall in the upper reaches of the Niger and Bani is low. It is therefore likely that the flood in 2025 will be much lower than last year. However, the flood prediction is still unsure and may vary depending on the amount of rainfall the coming weeks.

Bulletin 9 | 18 November 2024

This is the last OPIDIN bulletin of the flooding season 2024. The flood at Mopti has reached its highest level (716 cm) on 8 November. Such a high flood level has not been measured since more than 50 years. In the southern part of the delta the water level has started to decline, but further downstream the water still goes up.

Bulletin 8 | 16 October 2024

The flood level in Mopti nearly reached its peak, currently reaching a level which is 22 - 27 cm higher than the peak floods in three recent years with very high flood levels (2018, 2020 and 2022). OPIDIN predicts that the flood of 2024 will be very high, much higher than the peak floods of the last 50 years.

Bulletin 7: 3 October 2024

OPIDIN predicts that the flood of 2024 will be extremely high, comparable to the highest floods measured over the last 75 years. On October 2, the water level had already reached 683 cm, 20 to 40 cm higher on this date than in the last three years of very high floods. A further increase will be limited.

Bulletin 6: Extreme high flood expected in the Inner Niger Delta

OPIDIN predicts that the flood of 2024 will be extremely high, comparable with the highest floods measured in the last 75 years. The water level on 24 September already reached a level of 675 cm, as high as the maximum level in 2022, the last year with a high flood.

Bulletin 5 | 11 September 2024

The water level in Mopti has increased to 650 cm on the 9th of September. OPIDIN predicts that the maximum of the flood will be higher than in recent years with extremely high flood. It must be reckoned that the maximum flood will be higher than it has been since time immemorial.

Bulletin 4 | 29 August 2024

The water level in Mopti has increased to 617 cm on 28 August. That is high in comparison to all water levels measured on this date in the last 70 years. Although the rise in water level is levelling off, OPIDIN predicts a high flood in 2024.

Bulletin 4 | 29 August 2024

The water level in Mopti has increased to 617 cm on 28 August. That is high in comparison to all water levels measured on this date in the last fifty years. Although the rise in water level is levelling off, OPIDIN predicts a high flood in 2024.

Bulletin 3 | 22 August 2024

Water levels in Mopti are at present very high, reaching almost at the same height as last year’s maximum level. It is therefore likely that 2024 will be a year with a very high flood. However, the flood prediction is still unsure and may vary depending the amount of rainfall in the coming weeks.

Bulletin 2 | 15 August 2024

Water levels in Mopti are currently very high, reaching far above the water levels of recent years. It is therefore likely that 2024 will be a year with a very high flood. However, the flood prediction is still unsure and may vary depending the amount of rainfall in the coming weeks.

Bulletin 1 | 8 Août 2024

The new 2024-2025 flood season has begun and from now on OPIDIN offers regular bulletins until the water level in Mopti has reached its peak level. The water level in Mopti already reached a high level, far above the water levels of recent years. It is therefore likely that 2024 will be a year with a very high flood as in 2022. However, the flood prediction is still unsure and may vary depending on the amount of rainfall the coming weeks.

Bulletin 6 | 19 October 2023

The water level in Mopti has now just about reached its peak with a level of 612 cm on 16 October. Last week, the level rose a few more cm but hardly at all in the last few days. If the water were to increase again, it will most likely be only a few cm. Hence, the inundation in the Inner Niger Delta is modest this year, and significantly lower than the five years before.

Bulletin 5 | 9 octobre 2023

OPIDIN predicts that the flood has nearly reached its peak, at 600 cm, and will not rise significantly any more the coming weeks. Hence, the flood in the Inner Niger Delta this flooding season is modest, and significantly lower than the five years before.

Bulletin 4 | 21 September 2023

The water level this year in Mopti is considerably lower than last year around this date. OPIDIN predicts that the water level in Mopti will rise only slightly and reach its peak in the first half of October. It is already clear that this year's flood level will be moderate and well below that of the past five years.

Bulletin 3 | 7 September 2023

Based on the information available on 7 September, OPIDIN predicts that the flood of 2023 will certainly be not as high as in 2018, 2020 and 2022. The flood in 2023 will probably be even a bit lower than in 2019 and 2021, but certainly much higher than in 2017.

Bulletin 2 | 24 August 2023

The water level in Mopti has risen by 92 cm within the past two weeks, but the water level is still not very high. This makes it likely that the peak flood in 2023 will be moderate, probably lower than the past five years.

Bulletin 1 | 11 August 2023

The new 2023-2024 flood season has begun and from now on OPIDIN offers regular bulletins until the water level in Mopti has reached its peak level. Unlike in previous years, the water level in Mopti has not increased very much so far. It is therefore not likely that 2023 will be a year with a very high flood as in 2020 and last year. However, the flood prediction is still unsure and may vary depending on the amount of rainfall the coming weeks.

Flood in the Inner Niger Delta reach highest peak | bulletin 24 October 2022

The flood in the Inner Delta has reached its highest point, amounting to a high of 675 cm in Mopti. This is considerably higher than last year, and just slightly higher than the recent high floods in 2018 (670 cm) and 2020 (670 cm). This brings the flood to its highest level since 1969.

High flood in the Inner Niger Delta | bulletin 12 October 2022

There is a very high flood in the Inner Niger Delta this year, even slightly higher than the recent high floods in 2018 and 2020, and considerably higher than last year. The flood is now starting to stabilise in Mopti but due to rainfall upstream, the peak may not have been reached yet. However, the flood is not expected to rise much higher.

High crue expected in Inner Niger Delta

OPIDIN forecasts a high flood this year in the Inner Niger Delta, comparable to recent high floods in 2018 and 2020, and clearly higher than last year. The flood will probably reach a level well above 650, may be even higher. This will depend however on the discharge in the coming weeks and the rainfall upstream.

Flood predictions current season

OPIDIN has been operational again since 1 August this year, forecasting the height of the flood in the Niger Delta for the stations of Mopti, Akka and Dire. Unlike in previous years, no weekly bulletins are published this year. The information on water levels is updated weekly, and the predicted flood can be followed via the flood forecast page.

Bulletin 11 | 12 October 2021

The water level in Mopti has now been at about the same level for 22 days, and it is not likely it will increase further. It is more likely that the water level will now gradually fall and that this year the maximum water level in Mopti (633 cm) has been reached . The maximal flooding is this year about as high as in 2019.

Bulletin 10 | 5 October 2021

The temporary decline of the water level last week, before the peak level is reached, is extremely rare and was only observed in 2005 and 2010. It is unclear if the water level will further increase, but it is very unlikely that the flood will be as high as last year and in 2018 (670 cm). It is more likely that the peak will be as high as 2019 (640 cm) or a bit lower.

Bulletin 9 | 28 September 2021

The water level in Mopti rose by only one cm in the past week and fell by 5 cm in the next three days to 623 cm on 28 September. This indicates that the flooding has already reached its peak. However, based on the earlier course of the flood and rainfall, OPIDIN predicted that the water level would rise another 40 cm or so to reach its peak in the second half of October. It is still possible that the drop in water level last week was temporary and that the water level will rise again in the coming weeks. The unexpected course of the flood will be further analysed.

Bulletin 8 | 21 September 2021

The water level in Mopti rose by 12 cm the last week. That is, on average, by 2 cm a day. The water level is this year in Mopti on 21 September already 76 cm higher than the peak level of the flood in 2017, but OPIDIN predicts that the water level in Mopti will reach a peak level as high as in 2016, 2018 and 2020.